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What Are You Allowed to Build at 129 College Farm Rd, Waltham, MA, 02451?

Backyard Cottage

(Detached ADU)

Might be Allowed

This property may qualify for a Detached ADU of up to 661 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 661 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

Zoning Jurisdiction

WALTHAM

Parcel ID

R0230100024

Property Type

Single Family

Zone

RA-3

Year Built

1958

Lot Size

4,356 sq ft

Gross Building Area

948 sq ft

Gross Floor Area

1,322 sq ft

Estimated

Living Area

1,322 sq ft

Basement Area

0 sq ft

Impervious Surface

948 sq ft

Estimated

21.8%of lot coverage

ADU rules for Waltham, MA

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