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What Are You Allowed to Build at 6 Atlantic St, Portland, ME, 04101?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU of up to 623 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 623 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

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.

Multifamily

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 6 Atlantic St, Portland, ME, 04101

Zoning Jurisdiction

PORTLAND

Parcel ID

016F010001

Property Type

Single Family

Zone

RN-4

Year Built

1824

Lot Size

1,811 sq ft

Gross Building Area

934 sq ft

Gross Floor Area

934 sq ft

Estimated

Living Area

934 sq ft

Basement Area

0 sq ft

Impervious Surface

934 sq ft

Estimated
51.6%of lot coverage

ADU rules for Portland, 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 6 Atlantic St, Portland, ME, 04101?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU of up to 623 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 623 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

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.

Multifamily

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 6 Atlantic St, Portland, ME, 04101

Zoning Jurisdiction

PORTLAND

Parcel ID

016F010001

Property Type

Single Family

Zone

RN-4

Year Built

1824

Lot Size

1,811 sq ft

Gross Building Area

934 sq ft

Gross Floor Area

934 sq ft

Estimated

Living Area

934 sq ft

Basement Area

0 sq ft

Impervious Surface

934 sq ft

Estimated
51.6%of lot coverage

ADU rules for Portland, ME

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

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