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What Are You Allowed to Build at 310 Ofallon Troy Rd, Ofallon, IL, 62254?

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

Might be Allowed
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

Might be Allowed
This property may meet the zoning requirements to build a Single-Family home up to 1,043 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit. Additional factors may affect feasibility.

Multi Family

Home Addition

Might be Allowed
The property may meet the zoning requirements to build a Home Addition of zoning-counted floor area. Additional factors may affect feasibility.

Property facts

Streetview picture of 310 Ofallon Troy Rd, Ofallon, IL, 62254

Zoning Jurisdiction

OFALLON

Parcel ID

04080400039

Property Type

Agricultural

Zone

RR

Year Built

2012

Lot Size

64,331 sq ft

Gross Building Area

2,086 sq ft

Gross Floor Area

2,086 sq ft

Estimated

Living Area

2,086 sq ft

Basement Area

0 sq ft

Impervious Surface

2,086 sq ft

Estimated
3.2%of lot coverage

ADU rules for Ofallon, 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 310 Ofallon Troy Rd, Ofallon, IL, 62254?

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

Might be Allowed
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

Might be Allowed
This property may meet the zoning requirements to build a Single-Family home up to 1,043 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit. Additional factors may affect feasibility.

Multi Family

Home Addition

Might be Allowed
The property may meet the zoning requirements to build a Home Addition of zoning-counted floor area. Additional factors may affect feasibility.

Property facts

Streetview picture of 310 Ofallon Troy Rd, Ofallon, IL, 62254

Zoning Jurisdiction

OFALLON

Parcel ID

04080400039

Property Type

Agricultural

Zone

RR

Year Built

2012

Lot Size

64,331 sq ft

Gross Building Area

2,086 sq ft

Gross Floor Area

2,086 sq ft

Estimated

Living Area

2,086 sq ft

Basement Area

0 sq ft

Impervious Surface

2,086 sq ft

Estimated
3.2%of lot coverage

ADU rules for Ofallon, IL

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

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