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What Are You Allowed to Build at 18 Sullivan St, Springfield, MA, 01104?

Backyard Cottage

(Detached ADU)

Might be Allowed
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 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

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 18 Sullivan St, Springfield, MA, 01104

Zoning Jurisdiction

SPRINGFIELD

Parcel ID

112650006

Property Type

Two Family

Zone

Res B

Year Built

1925

Lot Size

3,998 sq ft

Gross Building Area

1,334 sq ft

Gross Floor Area

2,340 sq ft

Estimated

Living Area

2,340 sq ft

Basement Area

0 sq ft

Impervious Surface

1,334 sq ft

Estimated
33.4%of lot coverage

ADU rules for Springfield, 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 18 Sullivan St, Springfield, MA, 01104?

Backyard Cottage

(Detached ADU)

Might be Allowed
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 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

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 18 Sullivan St, Springfield, MA, 01104

Zoning Jurisdiction

SPRINGFIELD

Parcel ID

112650006

Property Type

Two Family

Zone

Res B

Year Built

1925

Lot Size

3,998 sq ft

Gross Building Area

1,334 sq ft

Gross Floor Area

2,340 sq ft

Estimated

Living Area

2,340 sq ft

Basement Area

0 sq ft

Impervious Surface

1,334 sq ft

Estimated
33.4%of lot coverage

ADU rules for Springfield, MA

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

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