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What Are You Allowed to Build at 521 Main St, Londonderry, VT, 05155?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU of up to 1,000 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

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

Might be Allowed
The property may meet the zoning requirements to build a Home Addition of zoning-counted floor area. Additional factors may affect feasibility.

Property facts

Streetview picture of 521 Main St, Londonderry, VT, 05155

Zoning Jurisdiction

LONDONDERRY

Parcel ID

35711010227

Property Type

Single Family

Zone

VR

Year Built

1880

Lot Size

32,670 sq ft

Gross Building Area

2,885 sq ft

Gross Floor Area

2,137 sq ft

Estimated

Living Area

1,390 sq ft

Basement Area

0 sq ft

Impervious Surface

2,885 sq ft

Estimated
8.8%of lot coverage

ADU rules for Londonderry, VT

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 521 Main St, Londonderry, VT, 05155?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU of up to 1,000 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

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

Might be Allowed
The property may meet the zoning requirements to build a Home Addition of zoning-counted floor area. Additional factors may affect feasibility.

Property facts

Streetview picture of 521 Main St, Londonderry, VT, 05155

Zoning Jurisdiction

LONDONDERRY

Parcel ID

35711010227

Property Type

Single Family

Zone

VR

Year Built

1880

Lot Size

32,670 sq ft

Gross Building Area

2,885 sq ft

Gross Floor Area

2,137 sq ft

Estimated

Living Area

1,390 sq ft

Basement Area

0 sq ft

Impervious Surface

2,885 sq ft

Estimated
8.8%of lot coverage

ADU rules for Londonderry, VT

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

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