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What Are You Allowed to Build at 21 S Ashland Ave, Chicago, IL, 60607?
Backyard Cottage
(Detached ADU)
Probably Not Allowed
This lot does not meet the requirements for a Detached ADU. A variance may be requested through your local zoning authority
In Home Apartment
(Conversion or Addition)
Probably Allowed
This property meets the requirements for an Internal ADU.
Swimming Pool
Probably Allowed
This property likely meets the zoning requirements to build a swimming pool. Based on applicable zoning limits, the estimated buildable area for a pool. Final feasibility may depend on site-specific conditions and local interpretation.
Single Family
This property may meet the zoning requirements to build a Single-Family home. Additional factors may affect feasibility.
Multi Family
Home Addition
Probably Allowed
We estimate you can expand this property under current zoning rules. We weren't able to identify a specific size limit, but an addition may be possible horizontally, vertically, or both, depending on design and permitting.
Property facts
Zoning Jurisdiction
CHICAGO
Parcel ID
17171010330000
Property Type
Multi Family
Zone
B3
Year Built
1983
Lot Size
24,817 sq ft
Gross Building Area
20,571 sq ft
Gross Floor Area
20,571 sq ft
Living Area
20,571 sq ft
Basement Area
0 sq ft
Impervious Surface
20,571 sq ft
82.9%of lot coverage

Based on public data and AI. Check with a pro. Read More
© 2026 TheBuilder AI Inc. d/b/aFutureLot. All rights reserved.
What Are You Allowed to Build at 21 S Ashland Ave, Chicago, IL, 60607?
Backyard Cottage
(Detached ADU)
Probably Not Allowed
This lot does not meet the requirements for a Detached ADU. A variance may be requested through your local zoning authority
In Home Apartment
(Conversion or Addition)
Probably Allowed
This property meets the requirements for an Internal ADU.
Swimming Pool
Probably Allowed
This property likely meets the zoning requirements to build a swimming pool. Based on applicable zoning limits, the estimated buildable area for a pool. Final feasibility may depend on site-specific conditions and local interpretation.
Single Family
This property may meet the zoning requirements to build a Single-Family home. Additional factors may affect feasibility.
Multi Family
Home Addition
Probably Allowed
We estimate you can expand this property under current zoning rules. We weren't able to identify a specific size limit, but an addition may be possible horizontally, vertically, or both, depending on design and permitting.
Property facts
Zoning Jurisdiction
CHICAGO
Parcel ID
17171010330000
Property Type
Multi Family
Zone
B3
Year Built
1983
Lot Size
24,817 sq ft
Gross Building Area
20,571 sq ft
Gross Floor Area
20,571 sq ft
Living Area
20,571 sq ft
Basement Area
0 sq ft
Impervious Surface
20,571 sq ft
82.9%of lot coverage

Based on public data and AI. Check with a pro. Read More
© 2026 TheBuilder AI Inc. d/b/aFutureLot. All rights reserved.