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What Are You Allowed to Build at 21 Charter St, Boston, MA, 02113?

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

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

Probably Allowed

This property likely meets the zoning requirements to build a Single-Family home up to 10,420 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit.

Multi Family

Home Addition

Probably Allowed

We estimate you can expand this property by up to 1,128 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

0302067000

Property Type

Multi Family

Zone

Art54_MFR

Year Built

1899

Lot Size

3,473 sq ft

Gross Building Area

2,369 sq ft

Gross Floor Area

9,292 sq ft

Estimated

Living Area

9,292 sq ft

Basement Area

0 sq ft

Impervious Surface

2,369 sq ft

Estimated

68.2%of lot coverage

ADU rules for Boston, MA

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