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What Are You Allowed to Build at 124 Walnut St, Dedham, MA, 02026?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 981 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

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 6,961 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 3,987 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 124 Walnut St, Dedham, MA, 02026

Zoning Jurisdiction

DEDHAM

Parcel ID

12789

Property Type

Single Family

Zone

SRB

Year Built

1910

Lot Size

13,921 sq ft

Gross Building Area

2,629 sq ft

Gross Floor Area

2,974 sq ft

Estimated

Living Area

2,974 sq ft

Basement Area

0 sq ft

Impervious Surface

2,629 sq ft

Estimated
18.9%of lot coverage

ADU rules for Dedham, 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 124 Walnut St, Dedham, MA, 02026?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 981 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

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 6,961 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 3,987 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 124 Walnut St, Dedham, MA, 02026

Zoning Jurisdiction

DEDHAM

Parcel ID

12789

Property Type

Single Family

Zone

SRB

Year Built

1910

Lot Size

13,921 sq ft

Gross Building Area

2,629 sq ft

Gross Floor Area

2,974 sq ft

Estimated

Living Area

2,974 sq ft

Basement Area

0 sq ft

Impervious Surface

2,629 sq ft

Estimated
18.9%of lot coverage

ADU rules for Dedham, MA

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

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