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What Are You Allowed to Build at 340 San Rey Ave, Millbrae, CA, 94030?

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

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 2,756 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit.

Multi Family

Home Addition

Probably Allowed

We estimate you can expand this property by up to 1,265 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

Zoning Jurisdiction

MILLBRAE

Parcel ID

021306040

Property Type

Single Family

Zone

R-1

Year Built

1952

Lot Size

5,011 sq ft

Gross Building Area

1,843 sq ft

Gross Floor Area

1,491 sq ft

Estimated

Living Area

1,140 sq ft

Basement Area

0 sq ft

Impervious Surface

1,843 sq ft

Estimated

36.8%of lot coverage

ADU rules for Millbrae, CA

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