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What Are You Allowed to Build at 18 Chestnut St, Boston, MA, 02129?

Backyard Cottage

(Detached ADU)

Probably Not Allowed

This lot does not meet the requirements for a Detached ADU. A variance may be requested through your local zoning authority

In Home Apartment

(Conversion or Addition)

Probably Allowed

This property meets the requirements for an Internal ADU of up to 1,250 sq ft allowed By Right, or possibly more by Special Permit.

Swimming Pool

Probably Not Allowed

This property likely does not meet the zoning requirements for a swimming pool. A variance or other zoning relief may be required. Final feasibility may depend on site-specific conditions and local interpretation.

Single Family

Probably Not Allowed

This lot does not meet the zoning requirements to build a Single-Family home. A variance may be requested through your local zoning authority

Multi Family

Home Addition

Probably Allowed

We estimate you can expand this property by up to 728 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

Zoning Jurisdiction

BOSTON

Parcel ID

0203465000

Property Type

Two Family

Zone

Art62_3F-2000

Year Built

1860

Lot Size

1,390 sq ft

Gross Building Area

1,231 sq ft

Gross Floor Area

2,053 sq ft

Estimated

Living Area

2,053 sq ft

Basement Area

0 sq ft

Impervious Surface

1,231 sq ft

Estimated

88.5%of lot coverage

ADU rules for Boston, MA

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