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What Are You Allowed to Build at 21 Half Crown Cir, Ashland, MA, 01721?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 900 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

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

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 21 Half Crown Cir, Ashland, MA, 01721

Zoning Jurisdiction

ASHLAND

Parcel ID

0140220001514003

Property Type

Residential

Zone

RM

Year Built

1999

Lot Size

375,394 sq ft

Gross Building Area

83,174 sq ft

Gross Floor Area

42,613 sq ft

Estimated

Living Area

2,052 sq ft

Basement Area

0 sq ft

Impervious Surface

83,174 sq ft

Estimated
22.2%of lot coverage

ADU rules for Ashland, 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 21 Half Crown Cir, Ashland, MA, 01721?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 900 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

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

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 21 Half Crown Cir, Ashland, MA, 01721

Zoning Jurisdiction

ASHLAND

Parcel ID

0140220001514003

Property Type

Residential

Zone

RM

Year Built

1999

Lot Size

375,394 sq ft

Gross Building Area

83,174 sq ft

Gross Floor Area

42,613 sq ft

Estimated

Living Area

2,052 sq ft

Basement Area

0 sq ft

Impervious Surface

83,174 sq ft

Estimated
22.2%of lot coverage

ADU rules for Ashland, MA

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

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