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What Are You Allowed to Build at 521 W Main St, St Charles, IL, 60174?

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. 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 521 W Main St, St Charles, IL, 60174

Zoning Jurisdiction

ST CHARLES

Parcel ID

0934102003

Property Type

Other

Zone

RT-4

Year Built

Lot Size

8,786 sq ft

Gross Building Area

0 sq ft

Gross Floor Area

0 sq ft

Estimated

Living Area

0 sq ft

Basement Area

0 sq ft

Impervious Surface

0 sq ft

Estimated

ADU rules for St Charles, 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 521 W Main St, St Charles, IL, 60174?

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. 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 521 W Main St, St Charles, IL, 60174

Zoning Jurisdiction

ST CHARLES

Parcel ID

0934102003

Property Type

Other

Zone

RT-4

Year Built

Lot Size

8,786 sq ft

Gross Building Area

0 sq ft

Gross Floor Area

0 sq ft

Estimated

Living Area

0 sq ft

Basement Area

0 sq ft

Impervious Surface

0 sq ft

Estimated

ADU rules for St Charles, IL

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

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