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What Are You Allowed to Build at 21 Stonebrook Ct, Southborough, MA, 01772?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU of up to 900 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.

In Home Apartment

(Conversion or Addition)

Might be Allowed
This property may qualify for an Internal ADU of up to 900 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.

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

Might be Allowed
This property may meet the zoning requirements to build a Single-Family home up to 81,167 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit. Additional factors may affect feasibility.

Multifamily

Home Addition

Might be Allowed
The property may meet the zoning requirements to build a Home Addition up to 66,271 sq ft of zoning-counted floor area. Additional factors may affect feasibility.

Property facts

Streetview picture of 21 Stonebrook Ct, Southborough, MA, 01772

Zoning Jurisdiction

SOUTHBOROUGH

Parcel ID

1500210160

Property Type

Residential

Zone

RB

Year Built

2018

Lot Size

270,557 sq ft

Gross Building Area

27,834 sq ft

Gross Floor Area

14,896 sq ft

Estimated

Living Area

1,958 sq ft

Basement Area

0 sq ft

Impervious Surface

27,834 sq ft

Estimated
10.3%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 Stonebrook Ct, Southborough, MA, 01772?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU of up to 900 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.

In Home Apartment

(Conversion or Addition)

Might be Allowed
This property may qualify for an Internal ADU of up to 900 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.

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

Might be Allowed
This property may meet the zoning requirements to build a Single-Family home up to 81,167 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit. Additional factors may affect feasibility.

Multifamily

Home Addition

Might be Allowed
The property may meet the zoning requirements to build a Home Addition up to 66,271 sq ft of zoning-counted floor area. Additional factors may affect feasibility.

Property facts

Streetview picture of 21 Stonebrook Ct, Southborough, MA, 01772

Zoning Jurisdiction

SOUTHBOROUGH

Parcel ID

1500210160

Property Type

Residential

Zone

RB

Year Built

2018

Lot Size

270,557 sq ft

Gross Building Area

27,834 sq ft

Gross Floor Area

14,896 sq ft

Estimated

Living Area

1,958 sq ft

Basement Area

0 sq ft

Impervious Surface

27,834 sq ft

Estimated
10.3%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.