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What Are You Allowed to Build at 670 Ardsley Rd, Winnetka, IL, 60093?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU of up to 8,005 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.

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

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 12,405 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 8,005 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 670 Ardsley Rd, Winnetka, IL, 60093

Zoning Jurisdiction

WINNETKA

Parcel ID

05173120290000

Property Type

Residential

Zone

R-2

Year Built

2001

Lot Size

46,042 sq ft

Gross Building Area

2,850 sq ft

Gross Floor Area

4,400 sq ft

Estimated

Living Area

4,400 sq ft

Basement Area

0 sq ft

Impervious Surface

4,400 sq ft

Estimated
9.6%of lot coverage

ADU rules for Winnetka, 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 670 Ardsley Rd, Winnetka, IL, 60093?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU of up to 8,005 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.

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

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 12,405 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 8,005 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 670 Ardsley Rd, Winnetka, IL, 60093

Zoning Jurisdiction

WINNETKA

Parcel ID

05173120290000

Property Type

Residential

Zone

R-2

Year Built

2001

Lot Size

46,042 sq ft

Gross Building Area

2,850 sq ft

Gross Floor Area

4,400 sq ft

Estimated

Living Area

4,400 sq ft

Basement Area

0 sq ft

Impervious Surface

4,400 sq ft

Estimated
9.6%of lot coverage

ADU rules for Winnetka, IL

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

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