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What Are You Allowed to Build at 15 Allen Rd, Winchester, MA, 01890?
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 Allowed
This property meets the requirements for an Internal ADU of up to 900 sq ft allowed By Right, or possibly more by Special Permit.
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 Not Allowed
The existing home is allowed as a legally nonconforming structure. However, the lot does not meet current zoning requirements for new Single-Family construction. A variance or other zoning relief may be requested.
Multi Family
Home Addition
Probably Allowed
We estimate you can expand this property by up to 5,491 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
Zoning Jurisdiction
WINCHESTER
Parcel ID
6308
Property Type
Single Family
Zone
SCI
Year Built
1927
Lot Size
15,581 sq ft
Gross Building Area
1,103 sq ft
Gross Floor Area
2,300 sq ft
Living Area
2,300 sq ft
Basement Area
0 sq ft
Impervious Surface
1,103 sq ft
7.1%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 15 Allen Rd, Winchester, MA, 01890?
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 Allowed
This property meets the requirements for an Internal ADU of up to 900 sq ft allowed By Right, or possibly more by Special Permit.
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 Not Allowed
The existing home is allowed as a legally nonconforming structure. However, the lot does not meet current zoning requirements for new Single-Family construction. A variance or other zoning relief may be requested.
Multi Family
Home Addition
Probably Allowed
We estimate you can expand this property by up to 5,491 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
Zoning Jurisdiction
WINCHESTER
Parcel ID
6308
Property Type
Single Family
Zone
SCI
Year Built
1927
Lot Size
15,581 sq ft
Gross Building Area
1,103 sq ft
Gross Floor Area
2,300 sq ft
Living Area
2,300 sq ft
Basement Area
0 sq ft
Impervious Surface
1,103 sq ft
7.1%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.