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What Are You Allowed to Build at 21 Atwood Rd, Southborough, MA, 01772?

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 900 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 Allowed
This property likely meets the zoning requirements to build a Single-Family home up to 11,500 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 9,533 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 21 Atwood Rd, Southborough, MA, 01772

Zoning Jurisdiction

SOUTHBOROUGH

Parcel ID

080000001D

Property Type

Single Family

Zone

RB

Year Built

1985

Lot Size

38,332 sq ft

Gross Building Area

1,819 sq ft

Gross Floor Area

1,967 sq ft

Estimated

Living Area

1,967 sq ft

Basement Area

0 sq ft

Impervious Surface

1,819 sq ft

Estimated
4.7%of lot coverage

ADU rules for Southborough, 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 Atwood Rd, Southborough, MA, 01772?

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 900 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 Allowed
This property likely meets the zoning requirements to build a Single-Family home up to 11,500 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 9,533 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 21 Atwood Rd, Southborough, MA, 01772

Zoning Jurisdiction

SOUTHBOROUGH

Parcel ID

080000001D

Property Type

Single Family

Zone

RB

Year Built

1985

Lot Size

38,332 sq ft

Gross Building Area

1,819 sq ft

Gross Floor Area

1,967 sq ft

Estimated

Living Area

1,967 sq ft

Basement Area

0 sq ft

Impervious Surface

1,819 sq ft

Estimated
4.7%of lot coverage

ADU rules for Southborough, MA

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

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