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What Are You Allowed to Build at 9700 Allison Way, Westminster, CO, 80021?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU of up to 1,116 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.

In Home Apartment

(Conversion or Addition)

Might be Allowed
This property may qualify for an Internal ADU of up to 1,116 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.

Swimming Pool

Probably Allowed
This property likely meets the zoning requirements to build a swimming pool. 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.

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 9700 Allison Way, Westminster, CO, 80021

Zoning Jurisdiction

WESTMINSTER

Parcel ID

2914305004

Property Type

Residential

Zone

O1

Year Built

1968

Lot Size

44,736 sq ft

Gross Building Area

2,232 sq ft

Gross Floor Area

2,232 sq ft

Estimated

Living Area

2,232 sq ft

Basement Area

0 sq ft

Impervious Surface

2,232 sq ft

Estimated
5.0%of lot coverage

ADU rules for Westminster, CO

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 9700 Allison Way, Westminster, CO, 80021?

Backyard Cottage

(Detached ADU)

Might be Allowed
This property may qualify for a Detached ADU of up to 1,116 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.

In Home Apartment

(Conversion or Addition)

Might be Allowed
This property may qualify for an Internal ADU of up to 1,116 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.

Swimming Pool

Probably Allowed
This property likely meets the zoning requirements to build a swimming pool. 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.

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 9700 Allison Way, Westminster, CO, 80021

Zoning Jurisdiction

WESTMINSTER

Parcel ID

2914305004

Property Type

Residential

Zone

O1

Year Built

1968

Lot Size

44,736 sq ft

Gross Building Area

2,232 sq ft

Gross Floor Area

2,232 sq ft

Estimated

Living Area

2,232 sq ft

Basement Area

0 sq ft

Impervious Surface

2,232 sq ft

Estimated
5.0%of lot coverage

ADU rules for Westminster, CO

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

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