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What Are You Allowed to Build at 655 Old Harbor Rd, Chatham, MA, 02650?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 695 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 695 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

Might be Allowed
This property may meet the zoning requirements to build a Single-Family home. Additional factors may affect feasibility.

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

Streetview picture of 655 Old Harbor Rd, Chatham, MA, 02650

Zoning Jurisdiction

CHATHAM

Parcel ID

16I26160

Property Type

Single Family

Zone

GB-1

Year Built

1909

Lot Size

24,818 sq ft

Gross Building Area

1,456 sq ft

Gross Floor Area

1,390 sq ft

Estimated

Living Area

1,325 sq ft

Basement Area

0 sq ft

Impervious Surface

1,456 sq ft

Estimated
5.9%of lot coverage

ADU rules for Chatham, 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 655 Old Harbor Rd, Chatham, MA, 02650?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 695 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 695 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

Might be Allowed
This property may meet the zoning requirements to build a Single-Family home. Additional factors may affect feasibility.

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

Streetview picture of 655 Old Harbor Rd, Chatham, MA, 02650

Zoning Jurisdiction

CHATHAM

Parcel ID

16I26160

Property Type

Single Family

Zone

GB-1

Year Built

1909

Lot Size

24,818 sq ft

Gross Building Area

1,456 sq ft

Gross Floor Area

1,390 sq ft

Estimated

Living Area

1,325 sq ft

Basement Area

0 sq ft

Impervious Surface

1,456 sq ft

Estimated
5.9%of lot coverage

ADU rules for Chatham, MA

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

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