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What Are You Allowed to Build at 21 Ash St, Townsend, MA, 01469?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 900 sq ft allowed By Right, or possibly more by Special Permit.

In Home Apartment

(Conversion or Addition)

Probably Allowed
This property meets the requirements for an Internal ADU of up to 991 sq ft allowed By Right, or possibly more by Special Permit.

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

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

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 21 Ash St, Townsend, MA, 01469

Zoning Jurisdiction

TOWNSEND

Parcel ID

53A308B0

Property Type

Single Family

Zone

RA

Year Built

1977

Lot Size

20,473 sq ft

Gross Building Area

1,539 sq ft

Gross Floor Area

1,840 sq ft

Estimated

Living Area

1,840 sq ft

Basement Area

0 sq ft

Impervious Surface

1,539 sq ft

Estimated
7.5%of lot coverage

ADU rules for Townsend, 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 21 Ash St, Townsend, MA, 01469?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 900 sq ft allowed By Right, or possibly more by Special Permit.

In Home Apartment

(Conversion or Addition)

Probably Allowed
This property meets the requirements for an Internal ADU of up to 991 sq ft allowed By Right, or possibly more by Special Permit.

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

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

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 21 Ash St, Townsend, MA, 01469

Zoning Jurisdiction

TOWNSEND

Parcel ID

53A308B0

Property Type

Single Family

Zone

RA

Year Built

1977

Lot Size

20,473 sq ft

Gross Building Area

1,539 sq ft

Gross Floor Area

1,840 sq ft

Estimated

Living Area

1,840 sq ft

Basement Area

0 sq ft

Impervious Surface

1,539 sq ft

Estimated
7.5%of lot coverage

ADU rules for Townsend, MA

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

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