324 Warren Rd, San Mateo, CA 94402 Property Records

San Mateo County property record for 324 Warren Rd, San Mateo, CA 94402

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,820 sqft · built 1926
Lot Size	0.172 acres (7,479 sqft)
Owner	2 Individual Names on Record
Last Sale	$2,710,000 (Oct 2023)
Tax Bill	$33,177 (2025)
Deeds & Mortgages	Oct 2023 Sale & Mortgage Jul 2018 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`032-011-100`

Property Details

APN / Parcel Number

Primary APN	`032-011-100`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	2,820 sqft Living Area
1st Floor Area	1,550 sqft
2nd Floor Area	1,270 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1926
Effective Year Built	Effective 1926
Exterior Material	Stucco
Roof Material	Tar & Gravel
Lot Area	7,479 sqft (0.172 acres)
Lot Dimensions	85 ft deep x 80 ft wide
View / Lot	Corner
Garage Area	440 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	324 WARREN RD
City	SAN MATEO
State	CA
Zip	94402-1038
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10010
Legal Description	ELY 150.75 FT OF LOT 198 SAN MATEO PARK SUB NO 2 RSM D/55 CITY OF SAN MATEO
Legal Subdivision	SAN MATEO PARK
Legal Lot Number	198
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	1
Census Block	1005
Census Tract	605800

Owner

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

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

Owner of Record	2 Individual Names on Record
Mailing Address	324 WARREN RD, SAN MATEO, CA 94402-1038
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Oct 19, 2023	Grant Deed, Transfer · Conventional Mortgage GOLDMAN SACHS BANK USA
Jul 30, 2018	Deed of Trust, Mortgage · ARM BOSTON PRIVATE BANK & TRUST COMPANY
Dec 28, 2018	Deed of Trust, Mortgage · Line of Credit SECURED INCOME FUND II LLC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Oct 19, 2023 · Amount on Record
Deed Sale	Oct 19, 2023 · Amount on Record
Prior Sale	Jul 29, 2003 · Amount on Record
Deed Document Number	202353052
Prior Transfer Date	Sep 13, 2004
Prior Transfer Doc	0000198478
Record Updated	Oct 29, 2026

October 2023: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Oct 19, 2023
Property Address	324 WARREN RD, SAN MATEO, CA 94402-1038
Document Number	0000053052
Map Reference	MB D PG 55
Instrument Date	Oct 13, 2023
Instrument	2023-053052
Transaction Type	Transfer
Record Updated	Nov 14, 2023
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$16,531.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	324 WARREN RD, SAN MATEO, CA 94402-1038

Mortgage

Document Number	0000053053
Date	Oct 19, 2023
Instrument	2023-053053

Lender

Name	GOLDMAN SACHS BANK USA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2053

Interest

Rate Type	Adjustable Rate
Rate	6.45%
Type Change Date	Nov 1, 2028
Change Frequency	6 Months
Min Rate At Change	3%
Max Rate At Change	11.4%
Margin	3
Max Rate	11.4%

July 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	324 WARREN RD, SAN MATEO, CA 94402-1038
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000059280
Date	Jul 30, 2018
Instrument	2018-059280

Lender

Name	BOSTON PRIVATE BANK & TRUST COMPANY
Type	Bank
Address	BOSTON, MA 02109

Agreement

Type	ARM
Amount	Amount Recorded
Term	361 Months
Due	Aug 1, 2048

Interest

Rate Type	Adjustable Rate
Rate	4%
Type Change Date	Aug 1, 2025
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	6%
Index	1-Year LIBOR
Max Rate	10%

December 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	324 WARREN RD, SAN MATEO, CA 94402-1038
Document Number	0000000278
Instrument Date	Dec 28, 2018
Transaction Type	Mortgage
Record Updated	Jan 21, 2019
Title Company	OLD REPUBLIC TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	324 WARREN RD SAN MATEO CA 944021038, SAN MATEO, CA 94402-1038

Mortgage

Document Number	0000000278
Date	Jan 3, 2019
Instrument	278

Lender

Name	SECURED INCOME FUND II LLC
Type	Bank

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

Source: San Mateo County assessment roll, as of July 15, 2026

Property Jurisdictions

Type	Name
State	California
County	San Mateo County
Municipality	San Mateo City
Elementary School District	San Mateo-Foster City 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	Assessed Market Value
2026		$2,819,484 (+2%) Land $2,080,800 Building $738,684
2025	$33,177.00 (+2%)	$2,764,200 (+22.59%) Land $2,040,000 Building $724,200
2023	$27,648.00 (+0.69%)	$2,254,852 Land $1,127,426 Building $1,127,426	$2,364,210
2022	$27,459.00

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

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
Nearby Flood Policies	3 in force
Nearby Flood Claims	1 (2012)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Mar 2012 · rainfall accumulation

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

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	CALIFORNIA WATER SERVICE - SAN MATEO private · serves 103,536 people · EPA ID CA4110008
Water Source	Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM
Last State Inspection	Mar 2025
Lead	4 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 561 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Astound Broadband Cable	1,500 / 50
Sonic Telecom Fiber	1,000 / 1,000
Verizon Fixed Wireless	1,000 / 75

May also be available: Etheric Networks, T-Mobile.

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