431 Ashton Ave, Millbrae, CA 94030 Property Records

San Mateo County property record for 431 Ashton Ave, Millbrae, CA 94030 · Last verified July 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	4 Beds
Bathrooms	2.5 Baths
Year Built	Built 1964
Square Footage	3,565 sqft Living Area
Lot Size	6,000 sqft (0.138 acres)
Occupancy	Owner Occupied
Last Sale	$728,000 (2004)
Tax Bill	$5,544.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`024-074-070`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Partial Baths	1 Partial Baths
Total Rooms	9 Rooms
Building Area	3,565 sqft Living Area
Gross Area	3,755 sqft Gross Area
1st Floor	1,260 sqft 1st Floor
Basement Area	580 sqft Basement
Finished Basement	390 sqft Finished
Unfinished Basement	190 sqft Unfinished
Family Room	Family Room
Stories	1 Stories

Exterior

Year Built	Built 1964
Effective Year Built	Effective 1964
Lot Area	6,000 sqft (0.138 acres)
Depth X Width	120 ft x 50 ft Depth x Width
Parking Spaces	1 Parking Spaces
Garage Type	Basement Garage
Garage Area	190 sqft Garage

Utilities and HVAC

Cooling System	Central Cooling
Heating System	Central Heating

Location & Zoning

Street Address	431 ASHTON AVE
City	MILLBRAE
State	CA
Zip	94030-2365
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	LOT 11 BLOCK 35 MILLBRAE HIGHLANDS NO 3
Legal Subdivision	MILLBRAE HIGHLANDS NO 3
Legal Block	35
Legal Lot Number	11
Jurisdiction	SAN MATEO CA
Minor Civil Division	SOUTH SAN FRANCISCO
Census Blockgroup	2
Census Block	2010
Census Tract	604800

Owner

Source: San Mateo County records · APN 024-074-070

Assessment roll updated July 15, 2026 · Last verified July 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Company Names on File
Mailing Address	431 ASHTON AVE, MILLBRAE, CA 94030-2365
Occupancy	Owner Occupied
Owner Type	Owner is a Company
Vesting	Owner is a Trust, Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Jul 16, 2004 · Amount on Record
Deed Sale	Jul 16, 2004 · Amount on Record
Deed Doc Number	2004146707
Last Transfer Date	Oct 22, 2014
Transfer Doc	0000040625
Record Refreshed	Sep 20, 2026

Tax Assessment & Valuation

Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified July 2026

Property Jurisdictions

Type	Name
State	California
County	San Mateo County
Municipality	Millbrae City
Elementary School District	Millbrae Elementary School District (KG - 08)
Secondary School District	San Mateo Union High School District (09 - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$309,849 (+2%) Land $39,985 Building $269,864
2025	$5,544.00 (+10.11%) Homeowner's exemption	$303,774 (+4.04%) Land $39,201 Building $264,573
2023	$5,035.00 (+47.01%) Homeowner's exemption	$291,981 Land $37,680 Building $254,301	$1,799,730
2022	$3,425.00

Flood & Wildfire

431 Ashton Ave is in FEMA Zone X, outside the Special Flood Hazard Area, with no wildfire exposure.

Flood

Source: FEMA National Flood Hazard Layer · San Mateo County (06081C), updated September 10, 2026

FEMA Flood Zone	Zone X minimal flood hazard · outside the 0.2% annual chance floodplain
Special Flood Hazard Area	No

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire Risk to Homes	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach of burnable land

Values are read at the parcel center point; lenders make the official flood determination.