City of Chicago

Additional Dwelling Unit Preapproval Applications

Applications for preapprovals of Additional Dwelling Units in Chicago, received by the Department of Housing since December 2020. Each record includes the applicant's name and full address, along with the business name and street address associated with the application.

Example records
Addressoperating locationAdu TypeclassificationZonegeographicStatusstatusApplication DatetemporalWardgeographicExisting Unitsquantity
2134 N Kedzie AveCoach HouseNorthwestApproved2021-06-14352
6712 S Carpenter StConversion UnitSouthPending2022-03-02161
4401 W Diversey AveConversion UnitNorthwestApproved2021-09-22303
Use cases

Rental Property Underwriting Signal

A small-balance commercial lender evaluating a refinance request on a Chicago two-flat checks whether the property has an approved ADU preapplication, which would increase projected rental income and affect the debt-service coverage ratio used in underwriting.

AddressStatusAdu TypeExisting UnitsApplication Date

Contractor Pipeline Prospecting

A general contractor specializing in accessory dwelling unit construction queries recently approved applications by zone and ADU type to identify property owners who have cleared the preapproval hurdle and are likely to solicit bids for construction work.

AddressAdu TypeStatusZoneApplication Date

Fraud and Misrepresentation Screening for Title Insurance

A title insurance underwriter reviewing a property sale checks whether an unpermitted structure on the parcel corresponds to a pending or denied ADU preapproval, flagging a potential misrepresentation of the unit as legally permitted in the listing.

AddressStatusAdu TypeExisting UnitsApplication Date
Related datasets
Affordable Rental Housing DevelopmentsCity of ChicagoBuilding Code ScofflawsCity of ChicagoChicago Building PermitsCity of ChicagoProperty Assessment ActionsChicago City ContractsCity of ChicagoContractor Business Diversity Program ReportsCity of ChicagoDebarred Firms and IndividualsCity of ChicagoPhiladelphia Affordable Housing ProductionCity of PhiladelphiaDOB Job Application FilingsCity of New YorkCertificate of OccupancyDistrict of ColumbiaDOB Permit IssuanceCity of New YorkRegistered Business OwnersCity of ChicagoEnvironmental Code ViolationsCity of ChicagoCook County Assessor PermitsLicense ApplicationsCity of New YorkEarly Learning ProgramsCity of ChicagoEnvironmental Asbestos and Demolition NotificationCity of ChicagoCity Council Discretionary FundingCity of New YorkOrdinance ViolationsCity of ChicagoRegistered Foreclosure PropertiesCity of Los Angeles