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What Are You Allowed to Build at 309 W Deer Creek Rd, Ofallon, IL, 62269?
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 Not Allowed
This lot does not meet the requirements for an Internal ADU. A variance may be requested through your local zoning authority
Swimming Pool
This property may meet the zoning requirements to build a swimming pool. Some factors may affect feasibility. 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 722 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit.
Multifamily
Home Addition
The property may meet the zoning requirements to build a Home Addition of zoning-counted floor area. Additional factors may affect feasibility.
Property facts
Zoning Jurisdiction
OFALLON
Parcel ID
04190213003
Property Type
Residential
Zone
SR-1
Year Built
1995
Lot Size
11,174 sq ft
Gross Building Area
3,395 sq ft
Gross Floor Area
2,419 sq ft
Living Area
1,444 sq ft
Basement Area
0 sq ft
Impervious Surface
3,395 sq ft
30.4%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 309 W Deer Creek Rd, Ofallon, IL, 62269?
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 Not Allowed
This lot does not meet the requirements for an Internal ADU. A variance may be requested through your local zoning authority
Swimming Pool
This property may meet the zoning requirements to build a swimming pool. Some factors may affect feasibility. 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 722 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit.
Multifamily
Home Addition
The property may meet the zoning requirements to build a Home Addition of zoning-counted floor area. Additional factors may affect feasibility.
Property facts
Zoning Jurisdiction
OFALLON
Parcel ID
04190213003
Property Type
Residential
Zone
SR-1
Year Built
1995
Lot Size
11,174 sq ft
Gross Building Area
3,395 sq ft
Gross Floor Area
2,419 sq ft
Living Area
1,444 sq ft
Basement Area
0 sq ft
Impervious Surface
3,395 sq ft
30.4%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.