657 Walnut St, San Bruno, CA 94066 Property Records

San Mateo County property record for 657 Walnut St, San Bruno, CA 94066 · Last verified July 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	4 Beds
Bathrooms	2 Baths
Year Built	Built 1941
Square Footage	1,740 sqft Living Area
Lot Size	5,000 sqft (0.115 acres)
Garage	240 sqft
Last Sale	$1,665,000 (2021)
Tax Bill	$6,637.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`020-153-180`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Building Area	1,740 sqft Living Area
1st Floor	700 sqft 1st Floor
Family Room	Family Room
Stories	1 Stories

Exterior

Year Built	Built 1941
Effective Year Built	Effective 1941
Architectural Style	Ranch Style
Exterior Material	Wood Exterior
Roof Material	Composition Shingle Roof
Lot Area	5,000 sqft (0.115 acres)
Depth X Width	100 ft x 50 ft Depth x Width
Parking Spaces	1 Parking Spaces
Garage Area	240 sqft Garage

Utilities and HVAC

Cooling System	Central Cooling
Heating System	Central Heating
Heating Fuel	Gas Heating Fuel
Sewage	Municipal Sewage
Water Source	Commercial Water Source

Location & Zoning

Street Address	657 WALNUT ST
City	SAN BRUNO
State	CA
Zip	94066-3243
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	LOTS 30 & 31 BLOCK 5 BELLE AIR PARK RSM 5/10
Legal Subdivision	BELLE AIR PARK
Legal Block	5
Legal Lot Number	30,31
Jurisdiction	SAN MATEO CA
Minor Civil Division	SOUTH SAN FRANCISCO
Census Blockgroup	1
Census Block	1006
Census Tract	604200

Owner

Source: San Mateo County records · APN 020-153-180

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	2930 CHURCHILL DR, HILLSBOROUGH, CA 94010-6211
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	May 26, 2021 · Amount on Record
Deed Sale	May 26, 2021 · Amount on Record
Prior Sale	Apr 02, 2021 · Amount on Record
Deed Doc Number	202182132
Prior Transfer Date	Nov 04, 2011
Prior Transfer Doc	0000074850
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	San Bruno City
Elementary School District	San Bruno Park 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		$337,802 (+2%) Land $168,901 Building $168,901
2025	$6,637.00 (+86.07%)	$331,180 (+4.04%) Land $165,590 Building $165,590
2023	$3,567.00 (+1.16%)	$318,322 Land $159,161 Building $159,161	$1,294,830
2022	$3,526.00

Flood & Wildfire

657 Walnut St is in FEMA Zone AE, inside 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 AE 1% annual chance, base flood elevation determined
Special Flood Hazard Area	Yes flood insurance required for federally backed mortgages
Floodway	No
Base Flood Elevation	10.0 ft vertical datum per the FIRM (NAVD88 on current maps)

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.