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Property Search
Welcome to the Cook County Assessor's Virtual Office Cook County Assessor's Office: Property Search Please select from the following search types: Search by Property Index Number and Property Class: PIN: - - - - Choose Residential Class --> 2-02: One Story Residence, Any Age, up to 999 Sq. Ft. 2-03: One Story Residence, Any Age, 1,000 to 1,800 Sq. Ft. 2-04: One Story Residence, Any Age, 1,801 Sq Ft. and Over 2-05: Two or More Story Residence, Over 62 Years, up to 2,200 Sq. Ft. 2-06: Two or More Story Residence, Over 62 Years, 2,201 to 4,999 Sq. Ft. 2-07: Two or More Story Residence, Up to 62 Years, up to 2,000 Ft. 2-08: Two or More Story Residence, Up to 62 Years, 3,801 to 4,999 Sq. Ft. 2-09: Two or More Story Residence, Any Age, 5,000 Sq. Ft. & Over 2-10: Old Style Row House, Over 62 Years 2-11: Two to Six Apartments, Any Age 2-12: Two to Six Apartments, Up to 62 Years 2-21: Corner Store, Office with Apartments Above Six Units or Less and Building Square Foot Less Than 20,000 2-34: Split Level Residence with Lower Level Below Grade, All Ages, All Sizes 2-78: Two or More Story Residence, Up to 62 Years, 2,001 to 3,800 Sq. Ft 2-95: Individually Owned Row Houses or Townhouses, Up to 62 Years 2-99: Residential Condominium OR Choose Non-Residential Class --> 0-00: Exempt 1-00: Vacant Land 1-90: Other minor improvement which does not add value 2-00: Residential land 2-01: Residential garage 2-13: Cooperatives (must have cdu of co) 2-24: Farm buildings 2-25: Qualified single room occupancy improvements (must have cdu of sr) 2-36: Any residence located on a parcel used primarily for industrial or commercial use 2-39: Farm land under use-value pricing 2-40: Farm land under market pricing 2-41: Vacant land under common ownership with adjacent residence 2-88: Home improvement exemption 2-90: Other minor improvements 2-94: Rented modern row houses or townhouses with less than seven units 2-97: Special residential improvements 3-00: Land Used in Conjunction with Rental Apartments 3-01: Garage used in conjunction with rental apartments 3-13: 2 or 3 story building, 7 or more units, sgl. devel., one or more contig. parcels, in common ownership 3-14: Two or three story non-frprf. crt. and corridor apts or california type apts, no corridors, ex. entrance 3-15: Two or three story non-fireproof corridor apartments,or california type apartments, interior entrance 3-18: Mixed use commercial/residential with apts. above seven units or more or building sq. ft. over 20,000 3-19: Mixed use commercial/residential with apts. above seven units or more or building sq. ft. over 20,000 3-20: Mixed use commercial/residential with apts. above seven units or more or building sq. ft. over 20,000 3-21: Mixed use commercial/residential with apts. above seven units or more or building sq. ft. over 20,000 3-90: Other minor improvements 3-91: Apartment buildings over three stories 3-96: Rented mdrn row houses, 7 or more units in a single develop. or 1 or more contig. parcels in cmn. ownshp. 3-97: Special rental improvements 3-99: Rental condo units in a sngl. dvlp. of 1 or more contig. parcels w 7 or more rental units, comn ownshp 4-00: Not for profit land 4-01: Not for profit garage 4-13: Not for prof. 2 or 3 stry bldg., 7 or more units, sng develop., 1 or more contig. parcels, in comn ownshp 4-14: Not for prof. 2 or 3 stry non-frprf crt and corridor apts or ca. type apts, no corridors, ex. entrance 4-15: Not for prof 2 or 3 stry non-frprf corridor apts, or ca. type apts, inter. entrance 4-16: Not for profit non-fireproof hotel or rooming house (apartment hotel) 4-17: Not for profit One story store 4-18: Not for profit Two or three story frame stores, with apartments above 4-19: Not for profit Two or three story old style store, with apartments above 4-20: Not for profit Two or three story modern inside store with apartment above 4-21: Not for profit corner store, office with apartment above 4-22: Not for profit One story non-fireproof public garage 4-23: Not for profit gasoline station 4-26: Not for profit commercial greenhouse 4-27: Not for profit theatres 4-28: Not for profit bank buildings 4-29: Not for profit motels 4-30: Not for profit supermarket 4-31: Not for profit shopping center 4-32: Not for profit bowling alley 4-33: Not for profit quonset huts and butler type buildings 4-35: Not for profit golf course improvement 4-80: Not for profit other industrial improvements 4-83: Not for profit industrial quonset huts and butler type buildings 4-87: Not for profit special industrial improvements 4-89: Not for profit industrial condominium units 4-90: Not for profit other minor improvements 4-91: Not for profit improvement over three stories 4-92: Not for profit Two or three story building containing part or all retail and/or commercial space 4-93: Not for profit industrial 4-96: Not for profit rent mdrn row houses, 7 or more units a sing dvlp or 1 or more contig prcls in comn ownshp 4-97: Not for profit special improvement 4-99: Not for profit condominium 5-00: Commercial land 5-01: Garage used in conjunction with commercial improvements 5-16: Non-fireproof hotel or rooming house (apartment hotel) 5-17: One story store 5-22: One story non-fireproof public garage 5-23: Gasoline station 5-26: Commercial greenhouse 5-27: Theatres 5-28: Bank buildings 5-29: Motels 5-30: Supermarket 5-31: Shopping center 5-32: Bowling alley 5-33: Quonset huts and butler type buildings 5-35: Golf course 5-50: Industrial land 5-80: Other industrial minor improvements 5-81: Garage used in conjunction with industrial improvements 5-83: Industrial quonset huts and butler type buildings 5-87: Special industrial improvements 5-89: Industrial condominium units 5-90: Commercial minor improvements 5-91: Commercial buildings over three stories 5-92: Two or three story building containing part or all retail and/or commercial space 5-93: Industrial 5-97: Special commercial improvements 5-99: Commercial condominium units 6-37: Industrial brownfield land 6-38: Industrial brownfield 6-50: Industrial land 6-51: Industrial land 6-54: Other industrial brownfield minor improvements 6-55: Garage used in conjunction with industrial brownfield incentive improvements 6-63: Industrial 6-66: Industrial brownfield quonset huts and butler type buildings 6-68: Special improvements 6-69: Industrial brownfield condominium units 6-70: Other industrial minor improvements 6-71: Garage used in conjunction with industrial incentive improvements 6-73: Industrial quonset huts and butler type buildings 6-77: Special improvements 6-79: Industrial condominium units 6-80: Other industrial minor improvements 6-81: Garage used in conjunction with industrial incentive improvements 6-83: Industrial quonset huts and butler type buildings 6-87: Special industrial improvements 6-89: Industrial condominium units 6-93: Industrial 7-00: Commercial incentive land 7-01: Garage used in conjunction with commercial incentive improvements 7-16: Non-fireproof hotel or rooming house (apartment hotel) 7-17: One story retail, restaurant, or banquet hall, medical building, miscellaneous commercial use 7-22: Garage, public/service 7-23: Gasoline station, with/without bays, store 7-26: Commercial greenhouse 7-27: Theatres 7-28: Bank buildings 7-29: Motels 7-30: Supermarket 7-31: Shopping center (regional, community, neighborhood, promotional, specialty) 7-32: Bowling alley 7-33: Quonset huts and butler type buildings 7-35: Golf course 7-42: Commercial incentive land 7-43: Garage used in conjunction with commercial incentive improvements 7-45: Golf course 7-46: Non-fireproof hotel or rooming house (apartment hotel) 7-47: One story retail, rstrnt, or bnqt hall, med. blding, miscellaneous commercial use 7-48: Motels 7-52: Garage, public/service 7-53: Gasoline station, with/without bays, store 7-56: Commercial greenhouse 7-57: Theatres 7-58: Bank buildings 7-60: Supermarket 7-61: Shopping center (regional, community, neighborhood, promotional, specialty) 7-62: Bowling alley 7-64: Quonset huts and butler type buildings 7-65: Other minor improvements 7-67: Facilities (tennis, rqtball, hlth club), (nursing, retirement home), auto. dlrshp, comm. structure 7-72: Two or three story building containing part or all retail and/or commercial space 7-74: office building (One story, low rise, mid rise, high rise) 7-90: Other minor improvements 7-91: Office building (one story, low rise, mid rise, high rise) 7-92: Two or three story building containing part or all retail and/or commercial space 7-97: Facilities (tennis, rqtbll, hlth club), (nursing, rtrmnt home), auto dlrshp, comm. structure 7-98: Commercial/industrial-condominium units/garage 7-99: Commercial/industrial-condominium units/garage 8-01: Garage in conjunction with commercial incentive improvements 8-16: Non-fireproof hotel or rooming house (apartment hotel) 8-17: One story retail, restaurant, (banquet hall, fast food), medical, miscellaneous commercial use 8-22: Garage (public/service) 8-23: Gasoline station with/without bay, store 8-26: Commercial greenhouse 8-27: Theatres 8-28: Bank building 8-29: Motels 8-30: Supermarket 8-31: Shopping center (regional, community, neighborhood, promotional, specialty) 8-32: Bowling alley 8-33: Quonset huts and butler type buildings 8-35: Golf course 8-50: Industrial incentive land 8-80: Other industrial minor improvements 8-81: Garage used in conjunction with industrial incentive improvements 8-83: Quonset huts and butler type buildings 8-87: Special industrial improvements 8-89: Industrial condominium units 8-90: Other minor improvements 8-91: Office building, (One story, low rise, midrise, high rise) 8-92: Two or three story building containing part or all retail and/or commercial space 8-93: Industrial buildings 8-97: Facilities, (tennis, rqtball, hlth club), (nursing, retirement home), auto. dlrshp, misc. comm. structure 8-99: Commercial/industrial condominium units/Garage 9-00: Land used in conjunction with incentive rental apartments 9-01: Garage used in conjunction with incentive rental apartments 9-13: 2 or 3 story bldng, 7 or more units, sngle devel., 1 or more contig. parcels, in common ownership 9-14: 2 or 3 story non-freprf crt and corridor apts or california type apts, no corridors, ex. entrance 9-15: 2 or 3 story non-frprf corridor apts, or california type apts, interior entrance 9-18: 2 or 3 story frame stores, with apts above (must be split coded with another class) 9-19: 2 or 3 story old style store, with apts above (must be split coded with another class) 9-20: 2 or 3 story modern inside store with apts above (must be split coded with another class) 9-21: Corner store, office with apartments above (must be split coded with another class) 9-59: Rental condo unts in a sing. dvlp. of 1 or more contiprcls w/ 7 or more rent units, commn ownrshp 9-90: Other minor improvements 9-91: Apartment buildings over three stories 9-96: Rental mdrn row houses, 7 or more unts in a sing. dvlpment or 1 or more contig. prcls in comm. ownrshp 9-97: Special rental improvements Enter Permanent Index Number (P.I.N.)Search by entering your 14 digit Property Index Number PIN in the corresponding boxes in the Search by Property Index Number function. Your PIN can be found on your Notice of Proposed Assessed Valuation, or on your tax bill. The first 2 digits should be entered into the first box, the second 2 in the second box, 3 digits in each of the third and fourth boxes, and the remaining 4 digits in the last box. Once you have entered your PIN, click once on the Search button. This will bring up a page with your desired PIN, corresponding address, class code, neighborhood, assessed value, and city. View Instructions Close Instructions Search by Address : House Number (from): (to:) Direction: Street: Note: For more accurate results, do NOT include labels such as St., Ave. Dr.,etc. City: Property Class: (optional) Choose Residential Class --> 2-02: One Story Residence, Any Age, up to 999 Sq. Ft. 2-03: One Story Residence, Any Age, 1,000 to 1,800 Sq. Ft. 2-04: One Story Residence, Any Age, 1,801 Sq Ft. and Over 2-05: Two or More Story Residence, Over 62 Years, up to 2,200 Sq. Ft. 2-06: Two or More Story Residence, Over 62 Years, 2,201 to 4,999 Sq. Ft. 2-07: Two or More Story Residence, Up to 62 Years, up to 2,000 Ft. 2-08: Two or More Story Residence, Up to 62 Years, 3,801 to 4,999 Sq. Ft. 2-09: Two or More Story Residence, Any Age, 5,000 Sq. Ft. & Over 2-10: Old Style Row House, Over 62 Years 2-11: Two to Six Apartments, Any Age 2-12: Two to Six Apartments, Up to 62 Years 2-21: Corner Store, Office with Apartments Above Six Units or Less and Building Square Foot Less Than 20,000 2-34: Split Level Residence with Lower Level Below Grade, All Ages, All Sizes 2-78: Two or More Story Residence, Up to 62 Years, 2,001 to 3,800 Sq. Ft 2-95: Individually Owned Row Houses or Townhouses, Up to 62 Years 2-99: Residential Condominium OR Choose Non-Residential Class --> 0-00: Exempt 1-00: Vacant Land 1-90: Other minor improvement which does not add value 2-00: Residential land 2-01: Residential garage 2-13: Cooperatives (must have cdu of co) 2-24: Farm buildings 2-25: Qualified single room occupancy improvements (must have cdu of sr) 2-36: Any residence located on a parcel used primarily for industrial or commercial use 2-39: Farm land under use-value pricing 2-40: Farm land under market pricing 2-41: Vacant land under common ownership with adjacent residence 2-88: Home improvement exemption 2-90: Other minor improvements 2-94: Rented modern row houses or townhouses with less than seven units 2-97: Special residential improvements 3-00: Land Used in Conjunction with Rental Apartments 3-01: Garage used in conjunction with rental apartments 3-13: 2 or 3 story building, 7 or more units, sgl. devel., one or more contig. parcels, in common ownership 3-14: Two or three story non-frprf. crt. and corridor apts or california type apts, no corridors, ex. entrance 3-15: Two or three story non-fireproof corridor apartments,or california type apartments, interior entrance 3-18: Mixed use commercial/residential with apts. above seven units or more or building sq. ft. over 20,000 3-19: Mixed use commercial/residential with apts. above seven units or more or building sq. ft. over 20,000 3-20: Mixed use commercial/residential with apts. above seven units or more or building sq. ft. over 20,000 3-21: Mixed use commercial/residential with apts. above seven units or more or building sq. ft. over 20,000 3-90: Other minor improvements 3-91: Apartment buildings over three stories 3-96: Rented mdrn row houses, 7 or more units in a single develop. or 1 or more contig. parcels in cmn. ownshp. 3-97: Special rental improvements 3-99: Rental condo units in a sngl. dvlp. of 1 or more contig. parcels w 7 or more rental units, comn ownshp 4-00: Not for profit land 4-01: Not for profit garage 4-13: Not for prof. 2 or 3 stry bldg., 7 or more units, sng develop., 1 or more contig. parcels, in comn ownshp 4-14: Not for prof. 2 or 3 stry non-frprf crt and corridor apts or ca. type apts, no corridors, ex. entrance 4-15: Not for prof 2 or 3 stry non-frprf corridor apts, or ca. type apts, inter. entrance 4-16: Not for profit non-fireproof hotel or rooming house (apartment hotel) 4-17: Not for profit One story store 4-18: Not for profit Two or three story frame stores, with apartments above 4-19: Not for profit Two or three story old style store, with apartments above 4-20: Not for profit Two or three story modern inside store with apartment above 4-21: Not for profit corner store, office with apartment above 4-22: Not for profit One story non-fireproof public garage 4-23: Not for profit gasoline station 4-26: Not for profit commercial greenhouse 4-27: Not for profit theatres 4-28: Not for profit bank buildings 4-29: Not for profit motels 4-30: Not for profit supermarket 4-31: Not for profit shopping center 4-32: Not for profit bowling alley 4-33: Not for profit quonset huts and butler type buildings 4-35: Not for profit golf course improvement 4-80: Not for profit other industrial improvements 4-83: Not for profit industrial quonset huts and butler type buildings 4-87: Not for profit special industrial improvements 4-89: Not for profit industrial condominium units 4-90: Not for profit other minor improvements 4-91: Not for profit improvement over three stories 4-92: Not for profit Two or three story building containing part or all retail and/or commercial space 4-93: Not for profit industrial 4-96: Not for profit rent mdrn row houses, 7 or more units a sing dvlp or 1 or more contig prcls in comn ownshp 4-97: Not for profit special improvement 4-99: Not for profit condominium 5-00: Commercial land 5-01: Garage used in conjunction with commercial improvements 5-16: Non-fireproof hotel or rooming house (apartment hotel) 5-17: One story store 5-22: One story non-fireproof public garage 5-23: Gasoline station 5-26: Commercial greenhouse 5-27: Theatres 5-28: Bank buildings 5-29: Motels 5-30: Supermarket 5-31: Shopping center 5-32: Bowling alley 5-33: Quonset huts and butler type buildings 5-35: Golf course 5-50: Industrial land 5-80: Other industrial minor improvements 5-81: Garage used in conjunction with industrial improvements 5-83: Industrial quonset huts and butler type buildings 5-87: Special industrial improvements 5-89: Industrial condominium units 5-90: Commercial minor improvements 5-91: Commercial buildings over three stories 5-92: Two or three story building containing part or all retail and/or commercial space 5-93: Industrial 5-97: Special commercial improvements 5-99: Commercial condominium units 6-37: Industrial brownfield land 6-38: Industrial brownfield 6-50: Industrial land 6-51: Industrial land 6-54: Other industrial brownfield minor improvements 6-55: Garage used in conjunction with industrial brownfield incentive improvements 6-63: Industrial 6-66: Industrial brownfield quonset huts and butler type buildings 6-68: Special improvements 6-69: Industrial brownfield condominium units 6-70: Other industrial minor improvements 6-71: Garage used in conjunction with industrial incentive improvements 6-73: Industrial quonset huts and butler type buildings 6-77: Special improvements 6-79: Industrial condominium units 6-80: Other industrial minor improvements 6-81: Garage used in conjunction with industrial incentive improvements 6-83: Industrial quonset huts and butler type buildings 6-87: Special industrial improvements 6-89: Industrial condominium units 6-93: Industrial 7-00: Commercial incentive land 7-01: Garage used in conjunction with commercial incentive improvements 7-16: Non-fireproof hotel or rooming house (apartment hotel) 7-17: One story retail, restaurant, or banquet hall, medical building, miscellaneous commercial use 7-22: Garage, public/service 7-23: Gasoline station, with/without bays, store 7-26: Commercial greenhouse 7-27: Theatres 7-28: Bank buildings 7-29: Motels 7-30: Supermarket 7-31: Shopping center (regional, community, neighborhood, promotional, specialty) 7-32: Bowling alley 7-33: Quonset huts and butler type buildings 7-35: Golf course 7-42: Commercial incentive land 7-43: Garage used in conjunction with commercial incentive improvements 7-45: Golf course 7-46: Non-fireproof hotel or rooming house (apartment hotel) 7-47: One story retail, rstrnt, or bnqt hall, med. blding, miscellaneous commercial use 7-48: Motels 7-52: Garage, public/service 7-53: Gasoline station, with/without bays, store 7-56: Commercial greenhouse 7-57: Theatres 7-58: Bank buildings 7-60: Supermarket 7-61: Shopping center (regional, community, neighborhood, promotional, specialty) 7-62: Bowling alley 7-64: Quonset huts and butler type buildings 7-65: Other minor improvements 7-67: Facilities (tennis, rqtball, hlth club), (nursing, retirement home), auto. dlrshp, comm. structure 7-72: Two or three story building containing part or all retail and/or commercial space 7-74: office building (One story, low rise, mid rise, high rise) 7-90: Other minor improvements 7-91: Office building (one story, low rise, mid rise, high rise) 7-92: Two or three story building containing part or all retail and/or commercial space 7-97: Facilities (tennis, rqtbll, hlth club), (nursing, rtrmnt home), auto dlrshp, comm. structure 7-98: Commercial/industrial-condominium units/garage 7-99: Commercial/industrial-condominium units/garage 8-01: Garage in conjunction with commercial incentive improvements 8-16: Non-fireproof hotel or rooming house (apartment hotel) 8-17: One story retail, restaurant, (banquet hall, fast food), medical, miscellaneous commercial use 8-22: Garage (public/service) 8-23: Gasoline station with/without bay, store 8-26: Commercial greenhouse 8-27: Theatres 8-28: Bank building 8-29: Motels 8-30: Supermarket 8-31: Shopping center (regional, community, neighborhood, promotional, specialty) 8-32: Bowling alley 8-33: Quonset huts and butler type buildings 8-35: Golf course 8-50: Industrial incentive land 8-80: Other industrial minor improvements 8-81: Garage used in conjunction with industrial incentive improvements 8-83: Quonset huts and butler type buildings 8-87: Special industrial improvements 8-89: Industrial condominium units 8-90: Other minor improvements 8-91: Office building, (One story, low rise, midrise, high rise) 8-92: Two or three story building containing part or all retail and/or commercial space 8-93: Industrial buildings 8-97: Facilities, (tennis, rqtball, hlth club), (nursing, retirement home), auto. dlrshp, misc. comm. structure 8-99: Commercial/industrial condominium units/Garage 9-00: Land used in conjunction with incentive rental apartments 9-01: Garage used in conjunction with incentive rental apartments 9-13: 2 or 3 story bldng, 7 or more units, sngle devel., 1 or more contig. parcels, in common ownership 9-14: 2 or 3 story non-freprf crt and corridor apts or california type apts, no corridors, ex. entrance 9-15: 2 or 3 story non-frprf corridor apts, or california type apts, interior entrance 9-18: 2 or 3 story frame stores, with apts above (must be split coded with another class) 9-19: 2 or 3 story old style store, with apts above (must be split coded with another class) 9-20: 2 or 3 story modern inside store with apts above (must be split coded with another class) 9-21: Corner store, office with apartments above (must be split coded with another class) 9-59: Rental condo unts in a sing. dvlp. of 1 or more contiprcls w/ 7 or more rent units, commn ownrshp 9-90: Other minor improvements 9-91: Apartment buildings over three stories 9-96: Rental mdrn row houses, 7 or more unts in a sing. dvlpment or 1 or more contig. prcls in comm. ownrshp 9-97: Special rental improvements If you wish to obtain information on a specific residential property but you do not know the PIN, simply enter the address in the "Search by Address" function. It should be noted that due to the transitory nature of addresses, our address file might contain errors or omissions. If you experience difficulties, please call the Cook County Assessors Office Taxpayer Information Department at 312-443-7550. When entering the street name of your desired property, to aid in your search, please do not enter the street suffix, such as St., Dr., Ave., etc. You will then need to enter the city name in the box on the third line of the section. Please note that you do not need to select a class to conduct a search.Once the required fields of information are entered, click once on the "Search by Address" button to submit your search. This will bring up a page with your desired PIN, corresponding address, city, neighborhood, class code, township, age, description of class code, assessed value, and a description of the propertys characteristics. To compare your propertys assessed value to other similar properties on your block or in your neighborhood, you may enter a range of addresses on the search page. For example, you may enter 400 500 N Main in Chicago. This may be useful if you are considering an appeal based on lack of uniformity. View Instructions Close Instructions Search by Neighborhood: Township: <SELECT> Barrington Berwyn Bloom Bremen Calumet Cicero Elk Grove Evanston Hanover Hyde Park Jefferson Lake Lake View Lemont Leyden Lyons Maine New Trier Niles North Chicago Northfield Norwood Park Oak Park Orland Palatine Palos Proviso Rich River Forest Riverside Rogers Park Schaumburg South Chicago Stickney Thornton West Chicago Wheeling Worth To search by neighborhood, simply use the drop-down box under the "Search by Neighborhood" section to select your township. If you do not know what township you are in, please check your "Notice of Proposed Assessed Valuation" or your tax bill. Once you have selected your township, click once on the "Search by Neighborhood" button. This will bring you to a page with a drop-down box with a list of neighborhood codes. If you do not know your neighborhood code, simply check your "Notice of Proposed Assessed Valuation" or click on the highlighted "Show Me Borders" for a listing of each neighborhood code and its street boundaries.Once you have selected your neighborhood code click once on the "Search by Neighborhood" button and you will see multiple pages of properties. If you wish to refine your search for similar properties click on the "Choose Class" drop-down box and select a specific class of property. This function is useful when comparing assessed value, although it is still important to look at each individual propertys characteristics. Properties in the same class with like characteristics are considered "comparables" and can be used in a residential appeal. View Instructions Close Instructions The most current assessment information will only be available for properties in triennial reassessment townships that have been mailed their "Notice of Proposed Assessed Valuation." For a listing of available townships and mailing dates click here. Please read the following instructions for information on how to best conduct an assessment search for non-residential property. Search Help : If you are having difficulty finding a property or wish to expand your search, try entering less information. For instance, in the "Search by Address" function leave the direction box blank, or only enter the first few letters of the street or city. In the "Search by PIN" function, if you enter only the first seven numbers of your PIN (i.eif your index number is 01-01-123-456-0000, and you only insert 01-01-123) this will expand your search to include all the properties that share those seven digits in ascending PIN order. This will widen the parameters for the database and improve the possibility that a record is found. Cook County Assessor's Office (Main) County Building, Third Floor 118 North Clark Street, Chicago, IL 60602 (312) 443-7550 2003- 2004 Cook County Assessors Office All rights reserved Disclaimer. Comments,Questions or Suggestions : Contact Us
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Property Search
Welcome to the Cook County Assessor's Virtual Office Cook County Assessor's Office: Property Search Please select from the following search types: Search by Property Index Number and Property Class: PIN: - - - - Choose Residential Class --> 2-02: One Story Residence, Any Age, up to 999 Sq. Ft. 2-03: One Story Residence, Any Age, 1,000 to 1,800 Sq. Ft. 2-04: One Story Residence, Any Age, 1,801 Sq Ft. and Over 2-05: Two or More Story Residence, Over 62 Years, up to 2,200 Sq. Ft. 2-06: Two or More Story Residence, Over 62 Years, 2,201 to 4,999 Sq. Ft. 2-07: Two or More Story Residence, Up to 62 Years, up to 2,000 Ft. 2-08: Two or More Story Residence, Up to 62 Years, 3,801 to 4,999 Sq. Ft. 2-09: Two or More Story Residence, Any Age, 5,000 Sq. Ft. & Over 2-10: Old Style Row House, Over 62 Years 2-11: Two to Six Apartments, Any Age 2-12: Two to Six Apartments, Up to 62 Years 2-21: Corner Store, Office with Apartments Above Six Units or Less and Building Square Foot Less Than 20,000 2-34: Split Level Residence with Lower Level Below Grade, All Ages, All Sizes 2-78: Two or More Story Residence, Up to 62 Years, 2,001 to 3,800 Sq. Ft 2-95: Individually Owned Row Houses or Townhouses, Up to 62 Years 2-99: Residential Condominium OR Choose Non-Residential Class --> 0-00: Exempt 1-00: Vacant Land 1-90: Other minor improvement which does not add value 2-00: Residential land 2-01: Residential garage 2-13: Cooperatives (must have cdu of co) 2-24: Farm buildings 2-25: Qualified single room occupancy improvements (must have cdu of sr) 2-36: Any residence located on a parcel used primarily for industrial or commercial use 2-39: Farm land under use-value pricing 2-40: Farm land under market pricing 2-41: Vacant land under common ownership with adjacent residence 2-88: Home improvement exemption 2-90: Other minor improvements 2-94: Rented modern row houses or townhouses with less than seven units 2-97: Special residential improvements 3-00: Land Used in Conjunction with Rental Apartments 3-01: Garage used in conjunction with rental apartments 3-13: 2 or 3 story building, 7 or more units, sgl. devel., one or more contig. parcels, in common ownership 3-14: Two or three story non-frprf. crt. and corridor apts or california type apts, no corridors, ex. entrance 3-15: Two or three story non-fireproof corridor apartments,or california type apartments, interior entrance 3-18: Mixed use commercial/residential with apts. above seven units or more or building sq. ft. over 20,000 3-19: Mixed use commercial/residential with apts. above seven units or more or building sq. ft. over 20,000 3-20: Mixed use commercial/residential with apts. above seven units or more or building sq. ft. over 20,000 3-21: Mixed use commercial/residential with apts. above seven units or more or building sq. ft. over 20,000 3-90: Other minor improvements 3-91: Apartment buildings over three stories 3-96: Rented mdrn row houses, 7 or more units in a single develop. or 1 or more contig. parcels in cmn. ownshp. 3-97: Special rental improvements 3-99: Rental condo units in a sngl. dvlp. of 1 or more contig. parcels w 7 or more rental units, comn ownshp 4-00: Not for profit land 4-01: Not for profit garage 4-13: Not for prof. 2 or 3 stry bldg., 7 or more units, sng develop., 1 or more contig. parcels, in comn ownshp 4-14: Not for prof. 2 or 3 stry non-frprf crt and corridor apts or ca. type apts, no corridors, ex. entrance 4-15: Not for prof 2 or 3 stry non-frprf corridor apts, or ca. type apts, inter. entrance 4-16: Not for profit non-fireproof hotel or rooming house (apartment hotel) 4-17: Not for profit One story store 4-18: Not for profit Two or three story frame stores, with apartments above 4-19: Not for profit Two or three story old style store, with apartments above 4-20: Not for profit Two or three story modern inside store with apartment above 4-21: Not for profit corner store, office with apartment above 4-22: Not for profit One story non-fireproof public garage 4-23: Not for profit gasoline station 4-26: Not for profit commercial greenhouse 4-27: Not for profit theatres 4-28: Not for profit bank buildings 4-29: Not for profit motels 4-30: Not for profit supermarket 4-31: Not for profit shopping center 4-32: Not for profit bowling alley 4-33: Not for profit quonset huts and butler type buildings 4-35: Not for profit golf course improvement 4-80: Not for profit other industrial improvements 4-83: Not for profit industrial quonset huts and butler type buildings 4-87: Not for profit special industrial improvements 4-89: Not for profit industrial condominium units 4-90: Not for profit other minor improvements 4-91: Not for profit improvement over three stories 4-92: Not for profit Two or three story building containing part or all retail and/or commercial space 4-93: Not for profit industrial 4-96: Not for profit rent mdrn row houses, 7 or more units a sing dvlp or 1 or more contig prcls in comn ownshp 4-97: Not for profit special improvement 4-99: Not for profit condominium 5-00: Commercial land 5-01: Garage used in conjunction with commercial improvements 5-16: Non-fireproof hotel or rooming house (apartment hotel) 5-17: One story store 5-22: One story non-fireproof public garage 5-23: Gasoline station 5-26: Commercial greenhouse 5-27: Theatres 5-28: Bank buildings 5-29: Motels 5-30: Supermarket 5-31: Shopping center 5-32: Bowling alley 5-33: Quonset huts and butler type buildings 5-35: Golf course 5-50: Industrial land 5-80: Other industrial minor improvements 5-81: Garage used in conjunction with industrial improvements 5-83: Industrial quonset huts and butler type buildings 5-87: Special industrial improvements 5-89: Industrial condominium units 5-90: Commercial minor improvements 5-91: Commercial buildings over three stories 5-92: Two or three story building containing part or all retail and/or commercial space 5-93: Industrial 5-97: Special commercial improvements 5-99: Commercial condominium units 6-37: Industrial brownfield land 6-38: Industrial brownfield 6-50: Industrial land 6-51: Industrial land 6-54: Other industrial brownfield minor improvements 6-55: Garage used in conjunction with industrial brownfield incentive improvements 6-63: Industrial 6-66: Industrial brownfield quonset huts and butler type buildings 6-68: Special improvements 6-69: Industrial brownfield condominium units 6-70: Other industrial minor improvements 6-71: Garage used in conjunction with industrial incentive improvements 6-73: Industrial quonset huts and butler type buildings 6-77: Special improvements 6-79: Industrial condominium units 6-80: Other industrial minor improvements 6-81: Garage used in conjunction with industrial incentive improvements 6-83: Industrial quonset huts and butler type buildings 6-87: Special industrial improvements 6-89: Industrial condominium units 6-93: Industrial 7-00: Commercial incentive land 7-01: Garage used in conjunction with commercial incentive improvements 7-16: Non-fireproof hotel or rooming house (apartment hotel) 7-17: One story retail, restaurant, or banquet hall, medical building, miscellaneous commercial use 7-22: Garage, public/service 7-23: Gasoline station, with/without bays, store 7-26: Commercial greenhouse 7-27: Theatres 7-28: Bank buildings 7-29: Motels 7-30: Supermarket 7-31: Shopping center (regional, community, neighborhood, promotional, specialty) 7-32: Bowling alley 7-33: Quonset huts and butler type buildings 7-35: Golf course 7-42: Commercial incentive land 7-43: Garage used in conjunction with commercial incentive improvements 7-45: Golf course 7-46: Non-fireproof hotel or rooming house (apartment hotel) 7-47: One story retail, rstrnt, or bnqt hall, med. blding, miscellaneous commercial use 7-48: Motels 7-52: Garage, public/service 7-53: Gasoline station, with/without bays, store 7-56: Commercial greenhouse 7-57: Theatres 7-58: Bank buildings 7-60: Supermarket 7-61: Shopping center (regional, community, neighborhood, promotional, specialty) 7-62: Bowling alley 7-64: Quonset huts and butler type buildings 7-65: Other minor improvements 7-67: Facilities (tennis, rqtball, hlth club), (nursing, retirement home), auto. dlrshp, comm. structure 7-72: Two or three story building containing part or all retail and/or commercial space 7-74: office building (One story, low rise, mid rise, high rise) 7-90: Other minor improvements 7-91: Office building (one story, low rise, mid rise, high rise) 7-92: Two or three story building containing part or all retail and/or commercial space 7-97: Facilities (tennis, rqtbll, hlth club), (nursing, rtrmnt home), auto dlrshp, comm. structure 7-98: Commercial/industrial-condominium units/garage 7-99: Commercial/industrial-condominium units/garage 8-01: Garage in conjunction with commercial incentive improvements 8-16: Non-fireproof hotel or rooming house (apartment hotel) 8-17: One story retail, restaurant, (banquet hall, fast food), medical, miscellaneous commercial use 8-22: Garage (public/service) 8-23: Gasoline station with/without bay, store 8-26: Commercial greenhouse 8-27: Theatres 8-28: Bank building 8-29: Motels 8-30: Supermarket 8-31: Shopping center (regional, community, neighborhood, promotional, specialty) 8-32: Bowling alley 8-33: Quonset huts and butler type buildings 8-35: Golf course 8-50: Industrial incentive land 8-80: Other industrial minor improvements 8-81: Garage used in conjunction with industrial incentive improvements 8-83: Quonset huts and butler type buildings 8-87: Special industrial improvements 8-89: Industrial condominium units 8-90: Other minor improvements 8-91: Office building, (One story, low rise, midrise, high rise) 8-92: Two or three story building containing part or all retail and/or commercial space 8-93: Industrial buildings 8-97: Facilities, (tennis, rqtball, hlth club), (nursing, retirement home), auto. dlrshp, misc. comm. structure 8-99: Commercial/industrial condominium units/Garage 9-00: Land used in conjunction with incentive rental apartments 9-01: Garage used in conjunction with incentive rental apartments 9-13: 2 or 3 story bldng, 7 or more units, sngle devel., 1 or more contig. parcels, in common ownership 9-14: 2 or 3 story non-freprf crt and corridor apts or california type apts, no corridors, ex. entrance 9-15: 2 or 3 story non-frprf corridor apts, or california type apts, interior entrance 9-18: 2 or 3 story frame stores, with apts above (must be split coded with another class) 9-19: 2 or 3 story old style store, with apts above (must be split coded with another class) 9-20: 2 or 3 story modern inside store with apts above (must be split coded with another class) 9-21: Corner store, office with apartments above (must be split coded with another class) 9-59: Rental condo unts in a sing. dvlp. of 1 or more contiprcls w/ 7 or more rent units, commn ownrshp 9-90: Other minor improvements 9-91: Apartment buildings over three stories 9-96: Rental mdrn row houses, 7 or more unts in a sing. dvlpment or 1 or more contig. prcls in comm. ownrshp 9-97: Special rental improvements Enter Permanent Index Number (P.I.N.)Search by entering your 14 digit Property Index Number PIN in the corresponding boxes in the Search by Property Index Number function. Your PIN can be found on your Notice of Proposed Assessed Valuation, or on your tax bill. The first 2 digits should be entered into the first box, the second 2 in the second box, 3 digits in each of the third and fourth boxes, and the remaining 4 digits in the last box. Once you have entered your PIN, click once on the Search button. This will bring up a page with your desired PIN, corresponding address, class code, neighborhood, assessed value, and city. View Instructions Close Instructions Search by Address : House Number (from): (to:) Direction: Street: Note: For more accurate results, do NOT include labels such as St., Ave. Dr.,etc. City: Property Class: (optional) Choose Residential Class --> 2-02: One Story Residence, Any Age, up to 999 Sq. Ft. 2-03: One Story Residence, Any Age, 1,000 to 1,800 Sq. Ft. 2-04: One Story Residence, Any Age, 1,801 Sq Ft. and Over 2-05: Two or More Story Residence, Over 62 Years, up to 2,200 Sq. Ft. 2-06: Two or More Story Residence, Over 62 Years, 2,201 to 4,999 Sq. Ft. 2-07: Two or More Story Residence, Up to 62 Years, up to 2,000 Ft. 2-08: Two or More Story Residence, Up to 62 Years, 3,801 to 4,999 Sq. Ft. 2-09: Two or More Story Residence, Any Age, 5,000 Sq. Ft. & Over 2-10: Old Style Row House, Over 62 Years 2-11: Two to Six Apartments, Any Age 2-12: Two to Six Apartments, Up to 62 Years 2-21: Corner Store, Office with Apartments Above Six Units or Less and Building Square Foot Less Than 20,000 2-34: Split Level Residence with Lower Level Below Grade, All Ages, All Sizes 2-78: Two or More Story Residence, Up to 62 Years, 2,001 to 3,800 Sq. Ft 2-95: Individually Owned Row Houses or Townhouses, Up to 62 Years 2-99: Residential Condominium OR Choose Non-Residential Class --> 0-00: Exempt 1-00: Vacant Land 1-90: Other minor improvement which does not add value 2-00: Residential land 2-01: Residential garage 2-13: Cooperatives (must have cdu of co) 2-24: Farm buildings 2-25: Qualified single room occupancy improvements (must have cdu of sr) 2-36: Any residence located on a parcel used primarily for industrial or commercial use 2-39: Farm land under use-value pricing 2-40: Farm land under market pricing 2-41: Vacant land under common ownership with adjacent residence 2-88: Home improvement exemption 2-90: Other minor improvements 2-94: Rented modern row houses or townhouses with less than seven units 2-97: Special residential improvements 3-00: Land Used in Conjunction with Rental Apartments 3-01: Garage used in conjunction with rental apartments 3-13: 2 or 3 story building, 7 or more units, sgl. devel., one or more contig. parcels, in common ownership 3-14: Two or three story non-frprf. crt. and corridor apts or california type apts, no corridors, ex. entrance 3-15: Two or three story non-fireproof corridor apartments,or california type apartments, interior entrance 3-18: Mixed use commercial/residential with apts. above seven units or more or building sq. ft. over 20,000 3-19: Mixed use commercial/residential with apts. above seven units or more or building sq. ft. over 20,000 3-20: Mixed use commercial/residential with apts. above seven units or more or building sq. ft. over 20,000 3-21: Mixed use commercial/residential with apts. above seven units or more or building sq. ft. over 20,000 3-90: Other minor improvements 3-91: Apartment buildings over three stories 3-96: Rented mdrn row houses, 7 or more units in a single develop. or 1 or more contig. parcels in cmn. ownshp. 3-97: Special rental improvements 3-99: Rental condo units in a sngl. dvlp. of 1 or more contig. parcels w 7 or more rental units, comn ownshp 4-00: Not for profit land 4-01: Not for profit garage 4-13: Not for prof. 2 or 3 stry bldg., 7 or more units, sng develop., 1 or more contig. parcels, in comn ownshp 4-14: Not for prof. 2 or 3 stry non-frprf crt and corridor apts or ca. type apts, no corridors, ex. entrance 4-15: Not for prof 2 or 3 stry non-frprf corridor apts, or ca. type apts, inter. entrance 4-16: Not for profit non-fireproof hotel or rooming house (apartment hotel) 4-17: Not for profit One story store 4-18: Not for profit Two or three story frame stores, with apartments above 4-19: Not for profit Two or three story old style store, with apartments above 4-20: Not for profit Two or three story modern inside store with apartment above 4-21: Not for profit corner store, office with apartment above 4-22: Not for profit One story non-fireproof public garage 4-23: Not for profit gasoline station 4-26: Not for profit commercial greenhouse 4-27: Not for profit theatres 4-28: Not for profit bank buildings 4-29: Not for profit motels 4-30: Not for profit supermarket 4-31: Not for profit shopping center 4-32: Not for profit bowling alley 4-33: Not for profit quonset huts and butler type buildings 4-35: Not for profit golf course improvement 4-80: Not for profit other industrial improvements 4-83: Not for profit industrial quonset huts and butler type buildings 4-87: Not for profit special industrial improvements 4-89: Not for profit industrial condominium units 4-90: Not for profit other minor improvements 4-91: Not for profit improvement over three stories 4-92: Not for profit Two or three story building containing part or all retail and/or commercial space 4-93: Not for profit industrial 4-96: Not for profit rent mdrn row houses, 7 or more units a sing dvlp or 1 or more contig prcls in comn ownshp 4-97: Not for profit special improvement 4-99: Not for profit condominium 5-00: Commercial land 5-01: Garage used in conjunction with commercial improvements 5-16: Non-fireproof hotel or rooming house (apartment hotel) 5-17: One story store 5-22: One story non-fireproof public garage 5-23: Gasoline station 5-26: Commercial greenhouse 5-27: Theatres 5-28: Bank buildings 5-29: Motels 5-30: Supermarket 5-31: Shopping center 5-32: Bowling alley 5-33: Quonset huts and butler type buildings 5-35: Golf course 5-50: Industrial land 5-80: Other industrial minor improvements 5-81: Garage used in conjunction with industrial improvements 5-83: Industrial quonset huts and butler type buildings 5-87: Special industrial improvements 5-89: Industrial condominium units 5-90: Commercial minor improvements 5-91: Commercial buildings over three stories 5-92: Two or three story building containing part or all retail and/or commercial space 5-93: Industrial 5-97: Special commercial improvements 5-99: Commercial condominium units 6-37: Industrial brownfield land 6-38: Industrial brownfield 6-50: Industrial land 6-51: Industrial land 6-54: Other industrial brownfield minor improvements 6-55: Garage used in conjunction with industrial brownfield incentive improvements 6-63: Industrial 6-66: Industrial brownfield quonset huts and butler type buildings 6-68: Special improvements 6-69: Industrial brownfield condominium units 6-70: Other industrial minor improvements 6-71: Garage used in conjunction with industrial incentive improvements 6-73: Industrial quonset huts and butler type buildings 6-77: Special improvements 6-79: Industrial condominium units 6-80: Other industrial minor improvements 6-81: Garage used in conjunction with industrial incentive improvements 6-83: Industrial quonset huts and butler type buildings 6-87: Special industrial improvements 6-89: Industrial condominium units 6-93: Industrial 7-00: Commercial incentive land 7-01: Garage used in conjunction with commercial incentive improvements 7-16: Non-fireproof hotel or rooming house (apartment hotel) 7-17: One story retail, restaurant, or banquet hall, medical building, miscellaneous commercial use 7-22: Garage, public/service 7-23: Gasoline station, with/without bays, store 7-26: Commercial greenhouse 7-27: Theatres 7-28: Bank buildings 7-29: Motels 7-30: Supermarket 7-31: Shopping center (regional, community, neighborhood, promotional, specialty) 7-32: Bowling alley 7-33: Quonset huts and butler type buildings 7-35: Golf course 7-42: Commercial incentive land 7-43: Garage used in conjunction with commercial incentive improvements 7-45: Golf course 7-46: Non-fireproof hotel or rooming house (apartment hotel) 7-47: One story retail, rstrnt, or bnqt hall, med. blding, miscellaneous commercial use 7-48: Motels 7-52: Garage, public/service 7-53: Gasoline station, with/without bays, store 7-56: Commercial greenhouse 7-57: Theatres 7-58: Bank buildings 7-60: Supermarket 7-61: Shopping center (regional, community, neighborhood, promotional, specialty) 7-62: Bowling alley 7-64: Quonset huts and butler type buildings 7-65: Other minor improvements 7-67: Facilities (tennis, rqtball, hlth club), (nursing, retirement home), auto. dlrshp, comm. structure 7-72: Two or three story building containing part or all retail and/or commercial space 7-74: office building (One story, low rise, mid rise, high rise) 7-90: Other minor improvements 7-91: Office building (one story, low rise, mid rise, high rise) 7-92: Two or three story building containing part or all retail and/or commercial space 7-97: Facilities (tennis, rqtbll, hlth club), (nursing, rtrmnt home), auto dlrshp, comm. structure 7-98: Commercial/industrial-condominium units/garage 7-99: Commercial/industrial-condominium units/garage 8-01: Garage in conjunction with commercial incentive improvements 8-16: Non-fireproof hotel or rooming house (apartment hotel) 8-17: One story retail, restaurant, (banquet hall, fast food), medical, miscellaneous commercial use 8-22: Garage (public/service) 8-23: Gasoline station with/without bay, store 8-26: Commercial greenhouse 8-27: Theatres 8-28: Bank building 8-29: Motels 8-30: Supermarket 8-31: Shopping center (regional, community, neighborhood, promotional, specialty) 8-32: Bowling alley 8-33: Quonset huts and butler type buildings 8-35: Golf course 8-50: Industrial incentive land 8-80: Other industrial minor improvements 8-81: Garage used in conjunction with industrial incentive improvements 8-83: Quonset huts and butler type buildings 8-87: Special industrial improvements 8-89: Industrial condominium units 8-90: Other minor improvements 8-91: Office building, (One story, low rise, midrise, high rise) 8-92: Two or three story building containing part or all retail and/or commercial space 8-93: Industrial buildings 8-97: Facilities, (tennis, rqtball, hlth club), (nursing, retirement home), auto. dlrshp, misc. comm. structure 8-99: Commercial/industrial condominium units/Garage 9-00: Land used in conjunction with incentive rental apartments 9-01: Garage used in conjunction with incentive rental apartments 9-13: 2 or 3 story bldng, 7 or more units, sngle devel., 1 or more contig. parcels, in common ownership 9-14: 2 or 3 story non-freprf crt and corridor apts or california type apts, no corridors, ex. entrance 9-15: 2 or 3 story non-frprf corridor apts, or california type apts, interior entrance 9-18: 2 or 3 story frame stores, with apts above (must be split coded with another class) 9-19: 2 or 3 story old style store, with apts above (must be split coded with another class) 9-20: 2 or 3 story modern inside store with apts above (must be split coded with another class) 9-21: Corner store, office with apartments above (must be split coded with another class) 9-59: Rental condo unts in a sing. dvlp. of 1 or more contiprcls w/ 7 or more rent units, commn ownrshp 9-90: Other minor improvements 9-91: Apartment buildings over three stories 9-96: Rental mdrn row houses, 7 or more unts in a sing. dvlpment or 1 or more contig. prcls in comm. ownrshp 9-97: Special rental improvements If you wish to obtain information on a specific residential property but you do not know the PIN, simply enter the address in the "Search by Address" function. It should be noted that due to the transitory nature of addresses, our address file might contain errors or omissions. If you experience difficulties, please call the Cook County Assessors Office Taxpayer Information Department at 312-443-7550. When entering the street name of your desired property, to aid in your search, please do not enter the street suffix, such as St., Dr., Ave., etc. You will then need to enter the city name in the box on the third line of the section. Please note that you do not need to select a class to conduct a search.Once the required fields of information are entered, click once on the "Search by Address" button to submit your search. This will bring up a page with your desired PIN, corresponding address, city, neighborhood, class code, township, age, description of class code, assessed value, and a description of the propertys characteristics. To compare your propertys assessed value to other similar properties on your block or in your neighborhood, you may enter a range of addresses on the search page. For example, you may enter 400 500 N Main in Chicago. This may be useful if you are considering an appeal based on lack of uniformity. View Instructions Close Instructions Search by Neighborhood: Township: <SELECT> Barrington Berwyn Bloom Bremen Calumet Cicero Elk Grove Evanston Hanover Hyde Park Jefferson Lake Lake View Lemont Leyden Lyons Maine New Trier Niles North Chicago Northfield Norwood Park Oak Park Orland Palatine Palos Proviso Rich River Forest Riverside Rogers Park Schaumburg South Chicago Stickney Thornton West Chicago Wheeling Worth To search by neighborhood, simply use the drop-down box under the "Search by Neighborhood" section to select your township. If you do not know what township you are in, please check your "Notice of Proposed Assessed Valuation" or your tax bill. Once you have selected your township, click once on the "Search by Neighborhood" button. This will bring you to a page with a drop-down box with a list of neighborhood codes. If you do not know your neighborhood code, simply check your "Notice of Proposed Assessed Valuation" or click on the highlighted "Show Me Borders" for a listing of each neighborhood code and its street boundaries.Once you have selected your neighborhood code click once on the "Search by Neighborhood" button and you will see multiple pages of properties. If you wish to refine your search for similar properties click on the "Choose Class" drop-down box and select a specific class of property. This function is useful when comparing assessed value, although it is still important to look at each individual propertys characteristics. Properties in the same class with like characteristics are considered "comparables" and can be used in a residential appeal. View Instructions Close Instructions The most current assessment information will only be available for properties in triennial reassessment townships that have been mailed their "Notice of Proposed Assessed Valuation." For a listing of available townships and mailing dates click here. Please read the following instructions for information on how to best conduct an assessment search for non-residential property. Search Help : If you are having difficulty finding a property or wish to expand your search, try entering less information. For instance, in the "Search by Address" function leave the direction box blank, or only enter the first few letters of the street or city. In the "Search by PIN" function, if you enter only the first seven numbers of your PIN (i.eif your index number is 01-01-123-456-0000, and you only insert 01-01-123) this will expand your search to include all the properties that share those seven digits in ascending PIN order. This will widen the parameters for the database and improve the possibility that a record is found. Cook County Assessor's Office (Main) County Building, Third Floor 118 North Clark Street, Chicago, IL 60602 (312) 443-7550 2003- 2004 Cook County Assessors Office All rights reserved Disclaimer. Comments,Questions or Suggestions : Contact Us