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What Are You Allowed to Build at 21 Walker St, Bath, ME, 04530?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU of up to 850 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.

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

Probably Not Allowed
The existing home is allowed as a legally nonconforming structure. However, the lot does not meet current zoning requirements for new Single-Family construction. A variance or other zoning relief may be requested.

Multi Family

Home Addition

Probably Not Allowed
Our analysis indicates there is no remaining zoning capacity to expand this home. A home addition would likely require zoning relief.

Property facts

Streetview picture of 21 Walker St, Bath, ME, 04530

Zoning Jurisdiction

BATH

Parcel ID

2302027056000

Property Type

Single Family

Zone

R1

Year Built

Lot Size

2,178 sq ft

Gross Building Area

0 sq ft

Gross Floor Area

0 sq ft

Estimated

Living Area

0 sq ft

Basement Area

0 sq ft

Impervious Surface

0 sq ft

Estimated

ADU rules for Bath, ME

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 Walker St, Bath, ME, 04530?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU of up to 850 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.

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

Probably Not Allowed
The existing home is allowed as a legally nonconforming structure. However, the lot does not meet current zoning requirements for new Single-Family construction. A variance or other zoning relief may be requested.

Multi Family

Home Addition

Probably Not Allowed
Our analysis indicates there is no remaining zoning capacity to expand this home. A home addition would likely require zoning relief.

Property facts

Streetview picture of 21 Walker St, Bath, ME, 04530

Zoning Jurisdiction

BATH

Parcel ID

2302027056000

Property Type

Single Family

Zone

R1

Year Built

Lot Size

2,178 sq ft

Gross Building Area

0 sq ft

Gross Floor Area

0 sq ft

Estimated

Living Area

0 sq ft

Basement Area

0 sq ft

Impervious Surface

0 sq ft

Estimated

ADU rules for Bath, ME

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

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