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What Are You Allowed to Build at 53 Allen Rd, Ashby, MA, 01431?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU of up to 568 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.

In Home Apartment

(Conversion or Addition)

Probably Allowed
This property meets the requirements for an Internal ADU of up to 568 sq ft allowed By Right, or possibly more by Special Permit.

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 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 under current zoning rules. We weren't able to identify a specific size limit, but an addition may be possible horizontally, vertically, or both, depending on design and permitting.

Property facts

Streetview picture of 53 Allen Rd, Ashby, MA, 01431

Zoning Jurisdiction

ASHBY

Parcel ID

0120100004700000

Property Type

Single Family

Zone

R

Year Built

1937

Lot Size

7,840 sq ft

Gross Building Area

1,241 sq ft

Gross Floor Area

1,135 sq ft

Estimated

Living Area

1,030 sq ft

Basement Area

0 sq ft

Impervious Surface

1,241 sq ft

Estimated
15.8%of lot coverage

ADU rules for Ashby, MA

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 53 Allen Rd, Ashby, MA, 01431?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU of up to 568 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.

In Home Apartment

(Conversion or Addition)

Probably Allowed
This property meets the requirements for an Internal ADU of up to 568 sq ft allowed By Right, or possibly more by Special Permit.

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 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 under current zoning rules. We weren't able to identify a specific size limit, but an addition may be possible horizontally, vertically, or both, depending on design and permitting.

Property facts

Streetview picture of 53 Allen Rd, Ashby, MA, 01431

Zoning Jurisdiction

ASHBY

Parcel ID

0120100004700000

Property Type

Single Family

Zone

R

Year Built

1937

Lot Size

7,840 sq ft

Gross Building Area

1,241 sq ft

Gross Floor Area

1,135 sq ft

Estimated

Living Area

1,030 sq ft

Basement Area

0 sq ft

Impervious Surface

1,241 sq ft

Estimated
15.8%of lot coverage

ADU rules for Ashby, MA

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

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