Want to explore more about your property?
What Are You Allowed to Build at 20 Hawthorne St, Springfield, MA, 01105?
Backyard Cottage
(Detached ADU)
This property may qualify for a Detached ADU of up to 864 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 864 sq ft allowed By Right, or possibly more by Special Permit.
Swimming Pool
Probably Not Allowed
This property likely does not meet the zoning requirements for a swimming pool. A variance or other zoning relief may be required. Final feasibility may depend on site-specific conditions and local interpretation.
Single Family
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
Zoning Jurisdiction
SPRINGFIELD
Parcel ID
064500005
Property Type
Single Family
Zone
Res B
Year Built
1914
Lot Size
3,550 sq ft
Gross Building Area
1,242 sq ft
Gross Floor Area
1,728 sq ft
Living Area
1,728 sq ft
Basement Area
0 sq ft
Impervious Surface
1,242 sq ft
35.0%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 20 Hawthorne St, Springfield, MA, 01105?
Backyard Cottage
(Detached ADU)
This property may qualify for a Detached ADU of up to 864 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 864 sq ft allowed By Right, or possibly more by Special Permit.
Swimming Pool
Probably Not Allowed
This property likely does not meet the zoning requirements for a swimming pool. A variance or other zoning relief may be required. Final feasibility may depend on site-specific conditions and local interpretation.
Single Family
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
Zoning Jurisdiction
SPRINGFIELD
Parcel ID
064500005
Property Type
Single Family
Zone
Res B
Year Built
1914
Lot Size
3,550 sq ft
Gross Building Area
1,242 sq ft
Gross Floor Area
1,728 sq ft
Living Area
1,728 sq ft
Basement Area
0 sq ft
Impervious Surface
1,242 sq ft
35.0%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.