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What Are You Allowed to Build at 4557 Seiler Rd, Unincorporated (Madison), IL, 62021?

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 Allowed
This property likely meets the zoning requirements to build a Single-Family home up to 5,445 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit.

Multi Family

Home Addition

Probably Allowed
We estimate you can expand this property by up to 4,621 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 4557 Seiler Rd, Unincorporated (Madison), IL, 62021

Zoning Jurisdiction

Madison County

Parcel ID

161031700000018

Property Type

Residential

Zone

R-3

Year Built

1945

Lot Size

10,890 sq ft

Gross Building Area

0 sq ft

Gross Floor Area

824 sq ft

Estimated

Living Area

824 sq ft

Basement Area

0 sq ft

Impervious Surface

0 sq ft

Estimated

ADU rules for Unincorporated Madison, 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 4557 Seiler Rd, Unincorporated (Madison), IL, 62021?

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 Allowed
This property likely meets the zoning requirements to build a Single-Family home up to 5,445 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit.

Multi Family

Home Addition

Probably Allowed
We estimate you can expand this property by up to 4,621 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 4557 Seiler Rd, Unincorporated (Madison), IL, 62021

Zoning Jurisdiction

Madison County

Parcel ID

161031700000018

Property Type

Residential

Zone

R-3

Year Built

1945

Lot Size

10,890 sq ft

Gross Building Area

0 sq ft

Gross Floor Area

824 sq ft

Estimated

Living Area

824 sq ft

Basement Area

0 sq ft

Impervious Surface

0 sq ft

Estimated

ADU rules for Unincorporated Madison, IL

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

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