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What Are You Allowed to Build at 2721 W 99th St, Chicago, IL, 60655?

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)

Might be Allowed
This property may qualify for an Internal ADU, but there are some special considerations.

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

Probably Not Allowed
This lot does not meet the zoning requirements to build a Single-Family home. A variance may be requested through your local zoning authority

Multi Family

Home Addition

Probably Allowed
We estimate you can expand this property by up to 2,163 sq ft under current zoning rules. This may allow for a horizontal addition, a vertical addition, or both, depending on design and permitting.

Property facts

Streetview picture of 2721 W 99th St, Chicago, IL, 60655

Zoning Jurisdiction

CHICAGO

Parcel ID

24124010360000

Property Type

Residential

Zone

RS2

Year Built

1947

Lot Size

4,836 sq ft

Gross Building Area

976 sq ft

Gross Floor Area

981 sq ft

Estimated

Living Area

981 sq ft

Basement Area

0 sq ft

Impervious Surface

981 sq ft

Estimated
20.3%of lot coverage

ADU rules for Chicago, IL

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 2721 W 99th St, Chicago, IL, 60655?

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)

Might be Allowed
This property may qualify for an Internal ADU, but there are some special considerations.

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

Probably Not Allowed
This lot does not meet the zoning requirements to build a Single-Family home. A variance may be requested through your local zoning authority

Multi Family

Home Addition

Probably Allowed
We estimate you can expand this property by up to 2,163 sq ft under current zoning rules. This may allow for a horizontal addition, a vertical addition, or both, depending on design and permitting.

Property facts

Streetview picture of 2721 W 99th St, Chicago, IL, 60655

Zoning Jurisdiction

CHICAGO

Parcel ID

24124010360000

Property Type

Residential

Zone

RS2

Year Built

1947

Lot Size

4,836 sq ft

Gross Building Area

976 sq ft

Gross Floor Area

981 sq ft

Estimated

Living Area

981 sq ft

Basement Area

0 sq ft

Impervious Surface

981 sq ft

Estimated
20.3%of lot coverage

ADU rules for Chicago, IL

Based on public data and AI. Check with a pro. Read More

© 2026 TheBuilder AI Inc. d/b/aFutureLot. All rights reserved.