Property Finder

Property Finder is a collection of topical maps to locate potentially developable land and off-market properties in Chicago and Cook County. Request a new map.


This map shows properties classified by the Cook County Assessor in the 2017 property tax year that are fuel/filling stations and car service repair shops.

All Chicago properties

Map showing only Cook County Land Bank Authority properties that are also in Opportunity Zones

Map showing only City of Chicago-owned properties that are also in Opportunity Zones

Every property transaction must be recorded at a county recorder of deeds office. The data collected includes the buyer's name, the seller's name, and a description of the property, among other details. (We also call this dataset PTAX.)

This map shows land currently or formerly owned by the City of Chicago. This is updated as frequently as the city updates their dataset, which is daily. Property classifications were classified by the Cook County Assessor in the 2018 property tax year. You can purchase this map from Chicago Cityscape.

A map of infill opportunities near Chicago Transit Authority (CTA) and Metra stations, within the radiuses specified in the Chicago Transit-Served Location ordinance. Property types included are vacant land, side yards, and minor improvements on vacant land.

Map showing only Cook County properties that are also in Opportunity Zones

Map showing properties in Cook County that have recently had a deed recorded (within the last 9 months).

Map showing properties in Cook County that have recently had a foreclosure recorded (within the last 9 months).

Map showing residential properties in Cook County that have a release and no deed recordings in the last 24 months.

This map shows vacant land (as classified by the Cook County Assessor in the 2019 and 2020 property tax years), classified as either vacant land (1-00), minor improvement on vacant land (1-90), vacant land used as a residential side yard (2-41), minor commercial improvement (often parking lots, 5-90), and unclassified (0-00).

This map shows residential zoning districts where ADUs and backyard homes would be allowed. The most recent proposed ordinance would allow a backyard home or an interior apartment to be added to any R-zoned lot. Owners of properties in RS-1 and RS-2 zoning districts would have to obtain a special ulse permit from the Zoning Board of Appeals. This map excludes condos, and includes townhouses and rowhouses.

This map shows existing multi-family buildings (as classified by the Cook County Assessor in the 2018 property tax year) that don't fully utilize the density (number of units) allowed by the extant zoning district. This map for the entire City of Chicago can be purchased

This map shows single-family detahed houses (as classified by the Cook County Assessor in the 2019 property tax year) that exist in Chicago within zoning districts which allow multi-family housing (this considers R, B, C, and D zoning districts with a minimum lot area per unit of 1,350 s.f. or less). Subdivide the house or replace it with an apartment building to offer more units. This map for the entire City of Chicago can be purchased.