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What Are You Allowed to Build at 4 Benjamin Rd, Lexington, MA, 02421?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 1,000 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 1,000 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 by up to 5,561 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 4 Benjamin Rd, Lexington, MA, 02421

Zoning Jurisdiction

LEXINGTON

Parcel ID

1112

Property Type

Single Family

Zone

RO

Year Built

2000

Lot Size

13,738 sq ft

Gross Building Area

2,649 sq ft

Gross Floor Area

2,649 sq ft

Estimated

Living Area

2,649 sq ft

Basement Area

0 sq ft

Impervious Surface

2,649 sq ft

Estimated
19.3%of lot coverage

ADU rules for Lexington, 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 4 Benjamin Rd, Lexington, MA, 02421?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 1,000 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 1,000 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 by up to 5,561 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 4 Benjamin Rd, Lexington, MA, 02421

Zoning Jurisdiction

LEXINGTON

Parcel ID

1112

Property Type

Single Family

Zone

RO

Year Built

2000

Lot Size

13,738 sq ft

Gross Building Area

2,649 sq ft

Gross Floor Area

2,649 sq ft

Estimated

Living Area

2,649 sq ft

Basement Area

0 sq ft

Impervious Surface

2,649 sq ft

Estimated
19.3%of lot coverage

ADU rules for Lexington, MA

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

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