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What Are You Allowed to Build at 21 Cook St # 21, Newton, MA, 02458?
Backyard Cottage
(Detached ADU)
This property may qualify for a Detached ADU of up to 1,000 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.
In Home Apartment
(Conversion or Addition)
This property may qualify for an Internal ADU of up to 1,000 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.
Swimming Pool
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 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
The property may meet the zoning requirements to build a Home Addition up to 2,134 sq ft of zoning-counted floor area. Additional factors may affect feasibility.
Property facts
Zoning Jurisdiction
NEWTON
Parcel ID
110130007
Property Type
Other
Zone
MR2
Year Built
2013
Lot Size
8,245 sq ft
Gross Building Area
2,508 sq ft
Gross Floor Area
2,236 sq ft
Living Area
1,964 sq ft
Basement Area
0 sq ft
Impervious Surface
2,508 sq ft
30.4%of lot coverage

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 21 Cook St # 21, Newton, MA, 02458?
Backyard Cottage
(Detached ADU)
This property may qualify for a Detached ADU of up to 1,000 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.
In Home Apartment
(Conversion or Addition)
This property may qualify for an Internal ADU of up to 1,000 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.
Swimming Pool
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 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
The property may meet the zoning requirements to build a Home Addition up to 2,134 sq ft of zoning-counted floor area. Additional factors may affect feasibility.
Property facts
Zoning Jurisdiction
NEWTON
Parcel ID
110130007
Property Type
Other
Zone
MR2
Year Built
2013
Lot Size
8,245 sq ft
Gross Building Area
2,508 sq ft
Gross Floor Area
2,236 sq ft
Living Area
1,964 sq ft
Basement Area
0 sq ft
Impervious Surface
2,508 sq ft
30.4%of lot coverage

Based on public data and AI. Check with a pro. Read More
© 2026 TheBuilder AI Inc. d/b/aFutureLot. All rights reserved.