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What Are You Allowed to Build at 1421 Isabel Ave, Livermore, CA, 94550?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 1,000 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 1,000 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.

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 1421 Isabel Ave, Livermore, CA, 94550

Zoning Jurisdiction

LIVERMORE

Parcel ID

992754

Property Type

Three Family

Zone

PD

Year Built

Lot Size

98,028 sq ft

Gross Building Area

0 sq ft

Gross Floor Area

0 sq ft

Estimated

Living Area

0 sq ft

Basement Area

0 sq ft

Impervious Surface

0 sq ft

Estimated

ADU rules for Livermore, CA

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 1421 Isabel Ave, Livermore, CA, 94550?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 1,000 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 1,000 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.

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 1421 Isabel Ave, Livermore, CA, 94550

Zoning Jurisdiction

LIVERMORE

Parcel ID

992754

Property Type

Three Family

Zone

PD

Year Built

Lot Size

98,028 sq ft

Gross Building Area

0 sq ft

Gross Floor Area

0 sq ft

Estimated

Living Area

0 sq ft

Basement Area

0 sq ft

Impervious Surface

0 sq ft

Estimated

ADU rules for Livermore, CA

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

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