298 Walnut St, San Bruno, CA 94066 Property Records

San Mateo County property record for 298 Walnut St, San Bruno, CA 94066

Property Summary

Property Type	Quadplex
Details	10 bd · 5 ba · 5,240 sqft · built 1965
Lot Size	0.126 acres (5,500 sqft)
Owner	Company Name on File
Tax Bill	$9,947 (2025)
Deeds & Mortgages	Jun 2021 Transfer Sep 2018 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`020-188-010`

Property Details

APN / Parcel Number

Primary APN	`020-188-010`

Interior

Bedrooms	10 Beds
Full Baths	5 Baths
Total Rooms	18 Rooms
Units	6 Units
Stories	1 Story
Building Area	5,240 sqft Living Area
1st Floor Area	5,240 sqft

Exterior

Year Built	Built 1965
Effective Year Built	Effective 1965
Architectural Style	Quadruplex
Lot Area	5,500 sqft (0.126 acres)
Lot Dimensions	100 ft deep x 75 ft wide
View / Lot	Corner
Parking Spaces	5 Parking Spaces

Location & Zoning

Street Address	298 WALNUT ST
City	SAN BRUNO
State	CA
Zip	94066-3247
Property Category	Residential
Property Type	Residential > Multi-Unit > Quadplex
Legal Description	LOTS 46 & 47 BLOCK 12 BELLE AIR PARK RSM 5/10
Legal Subdivision	BELLE AIR PARK
Legal Block	12
Legal Lot Number	46,47
Jurisdiction	SAN MATEO CA
Township / Civil Division	SOUTH SAN FRANCISCO
Census Block Group	1
Census Block	1010
Census Tract	604200

Owner

298 Walnut St, a quadplex, is owned by a company that acquired it in May 2021.

Source: San Mateo County records, as of July 15, 2026

Owner of Record	Company Name on File
Mailing Address	2811 SAN JUAN BLVD, BELMONT, CA 94002-1343
Owner Type	Company
Vesting	Limited Liability Company

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Jun 23, 2021	Intrafamily Transfer, Transfer
Sep 12, 2018	Quit Claim Deed, Transfer ATTORNEY ONLY
Jul 10, 2018	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	May 22, 2021
Transfer Doc	0000096336
Record Updated	Oct 29, 2026

June 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	Jun 23, 2021
Property Address	298 WALNUT ST, SAN BRUNO, CA 94066-3247
Document Number	0000096336
Map Reference	MB 5 PG 10
Instrument Date	May 22, 2021
Instrument	2021-096336
Transaction Type	Transfer
Record Updated	Jul 14, 2021

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	2811 SAN JUAN BLVD, BELMONT, CA 94002-1343

September 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Sep 12, 2018
Property Address	298 WALNUT ST, SAN BRUNO, CA 94066-3247
Document Number	0000071429
Instrument Date	Aug 29, 2018
Instrument	71429
Transaction Type	Transfer
Record Updated	Sep 28, 2018
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants in Common
Address	2811 SAN JUAN BLVD BELMONT CA 940021343, BELMONT, CA 94002-1343

July 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jul 10, 2018
Property Address	298 WALNUT ST, SAN BRUNO, CA 94066-3247
Document Number	0000053626
Instrument Date	Jun 14, 2018
Instrument	53626
Transaction Type	Transfer
Record Updated	Jul 26, 2018
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	2811 SAN JUAN BLVD BELMONT CA 940021343, BELMONT, CA 94002-1343

Tax Assessment & Valuation

The 2025 property tax bill for 298 Walnut St was $9,947, up 14.9% from the year before.

Source: San Mateo County assessment roll, as of July 15, 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

Year	Tax Bill	Assessed Value
2026		$213,263 (+2%) Land $42,391 Building $170,872
2025	$9,947.00 (+14.93%)	$209,082 Land $41,560 Building $167,522
2024	$8,655.00 (+278.11%)
2023	$2,289.00 (+1.15%)	$200,966 Land $39,948 Building $161,018
2022	$2,263.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

FEMA maps place 298 Walnut St in Zone X, an area of minimal flood risk, though there have been 5 flood claims nearby since 2021.

Source: FEMA National Flood Hazard Layer, effective September 10, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 29 policies
Community Rating System	Class 8 (10% premium discount)
Nearby Flood Policies	29 in force
Nearby Flood Claims	5 (2021–2022)
Most Recent Claim	Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides
Claims by Event	Severe Winter Storms, Flooding, Landslides, And Mudslides, Dec 2022 · 2 claims

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

The area around 298 Walnut St has no burnable land within ember reach, so its wildfire risk is not rated.

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

Wildfire Risk	Not rated no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	CITY OF SAN BRUNO serves 42,631 people · EPA ID CA4110023
Water Source	Purchased surface water from several systems
Last State Inspection	Jul 2024
Lead	Under 1 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 827 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · Fixed Wireless, DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: Astound Broadband, GeoLinks, Sonic Telecom.

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