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What Are You Allowed to Build at 13 Saint Johns Ln, Harvard, MA, 01451?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 1,500 sq ft allowed By Right, or possibly more by Special Permit.

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 Allowed
This property likely meets the zoning requirements to build a Single-Family home up to 27,051 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit.

Multifamily

Home Addition

Probably Allowed
We estimate you can expand this property by up to 23,272 sq ft under current zoning rules. This may allow for a horizontal addition, a vertical addition, or both, depending on design and permitting.

Property facts

Streetview picture of 13 Saint Johns Ln, Harvard, MA, 01451

Zoning Jurisdiction

HARVARD

Parcel ID

3151

Property Type

Single Family

Zone

AR

Year Built

2022

Lot Size

270,507 sq ft

Gross Building Area

1,412 sq ft

Gross Floor Area

3,779 sq ft

Estimated

Living Area

3,779 sq ft

Basement Area

0 sq ft

Impervious Surface

1,412 sq ft

Estimated
0.5%of lot coverage

ADU rules for Harvard, 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 13 Saint Johns Ln, Harvard, MA, 01451?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 1,500 sq ft allowed By Right, or possibly more by Special Permit.

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 Allowed
This property likely meets the zoning requirements to build a Single-Family home up to 27,051 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit.

Multifamily

Home Addition

Probably Allowed
We estimate you can expand this property by up to 23,272 sq ft under current zoning rules. This may allow for a horizontal addition, a vertical addition, or both, depending on design and permitting.

Property facts

Streetview picture of 13 Saint Johns Ln, Harvard, MA, 01451

Zoning Jurisdiction

HARVARD

Parcel ID

3151

Property Type

Single Family

Zone

AR

Year Built

2022

Lot Size

270,507 sq ft

Gross Building Area

1,412 sq ft

Gross Floor Area

3,779 sq ft

Estimated

Living Area

3,779 sq ft

Basement Area

0 sq ft

Impervious Surface

1,412 sq ft

Estimated
0.5%of lot coverage

ADU rules for Harvard, MA

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

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