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What Are You Allowed to Build at 166 Valley Rd, Needham, MA, 02492?
Backyard Cottage
(Detached ADU)
This property may qualify for a Detached ADU of up to 900 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.
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
Probably Allowed
This property likely meets the zoning requirements to build a swimming pool. 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 3,840 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 1,614 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
NEEDHAM
Parcel ID
1990020000300000
Property Type
Single Family
Zone
SRB
Year Built
2014
Lot Size
10,105 sq ft
Gross Building Area
2,459 sq ft
Gross Floor Area
2,226 sq ft
Living Area
1,993 sq ft
Basement Area
0 sq ft
Impervious Surface
2,459 sq ft
24.3%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 166 Valley Rd, Needham, MA, 02492?
Backyard Cottage
(Detached ADU)
This property may qualify for a Detached ADU of up to 900 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.
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
Probably Allowed
This property likely meets the zoning requirements to build a swimming pool. 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 3,840 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 1,614 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
NEEDHAM
Parcel ID
1990020000300000
Property Type
Single Family
Zone
SRB
Year Built
2014
Lot Size
10,105 sq ft
Gross Building Area
2,459 sq ft
Gross Floor Area
2,226 sq ft
Living Area
1,993 sq ft
Basement Area
0 sq ft
Impervious Surface
2,459 sq ft
24.3%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.