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What Are You Allowed to Build at 21 Avon St, Somerville, MA, 02143?

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.

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

SOMERVILLE

Parcel ID

51E36

Property Type

Residential

Zone

Year Built

1900

Lot Size

4,499 sq ft

Gross Building Area

1,640 sq ft

Gross Floor Area

2,332 sq ft

Estimated

Living Area

2,332 sq ft

Basement Area

0 sq ft

Impervious Surface

1,640 sq ft

Estimated

36.4%of lot coverage

ADU rules for Somerville, MA

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