140 Warren Rd, San Mateo, CA 94401 Property Records

San Mateo County property record for 140 Warren Rd, San Mateo, CA 94401

Property Summary

Property Type	Single Family Home
Details	2 bd · 1.5 ba · 1,310 sqft · built 1924
Lot Size	0.141 acres (6,132 sqft)
Owner	2 Individual Names on Record
Last Sale	$2,450,000 (May 2022)
Tax Bill	$27,096 (2025)
Deeds & Mortgages	Oct 2022 Mortgage May 2022 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`032-081-020`

Property Details

APN / Parcel Number

Primary APN	`032-081-020`

Interior

Bedrooms	2 Beds
Full Baths	1.5 Baths
Half Baths	1 Half Bath
Total Rooms	5 Rooms
Stories	1 Story
Building Area	1,310 sqft Living Area
Gross Area	1,900 sqft
1st Floor Area	1,070 sqft
Basement Area	590 sqft
Family Room	Family Room

Exterior

Year Built	Built 1924
Effective Year Built	Effective 1924
Lot Area	6,132 sqft (0.141 acres)
Lot Dimensions	121 ft deep x 50 ft wide
View / Lot	Alley

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	140 WARREN RD
City	SAN MATEO
State	CA
Zip	94401-3720
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10010
Legal Description	LOT 34 BALDWIN HOWELL SUB RSM E/23 CITY OF SAN MATEO
Legal Subdivision	BALDWIN HOWELL SUB
Legal Lot Number	34
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	1
Census Block	1000
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	140 WARREN RD, SAN MATEO, CA 94401-3720
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Oct 19, 2022	Deed of Trust, Mortgage · Conventional Mortgage US BANK NA
May 31, 2022	Grant Deed, Transfer · Conventional Mortgage PMAC LENDING SERVICES INC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 31, 2022 · Amount on Record
Deed Sale	May 31, 2022 · Amount on Record
Deed Document Number	202244240
Prior Transfer Date	Jun 30, 2009
Prior Transfer Doc	0000087503
Record Updated	Oct 29, 2026

October 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	140 WARREN RD, SAN MATEO, CA 94401-3720
Transaction Type	Mortgage
Record Updated	Nov 10, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	140 WARREN RD, SAN MATEO, CA 94401-3720

Mortgage

Document Number	0000074207
Date	Oct 19, 2022
Instrument	2022-074207

Lender

Name	US BANK NA
Type	Bank
Address	OWENSBORO, KY 42301

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2052

Interest

Rate Type	Adjustable Rate
Rate	4.75%
Type Change Date	Nov 1, 2029
Change Frequency	Annually
Min Rate At Change	2.75%
Max Rate At Change	9.75%
Index	1-Year CMT
Max Rate	9.75%

May 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	May 31, 2022
Property Address	140 WARREN RD, SAN MATEO, CA 94401-3720
Document Number	0000044240
Map Reference	MB E PG 23
Instrument Date	May 24, 2022
Instrument	2022-044240
Transaction Type	Transfer
Record Updated	Jun 15, 2022
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$14,945.00
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	140 WARREN RD, SAN MATEO, CA 94401-3720

Mortgage

Document Number	0000044241
Date	May 31, 2022
Instrument	2022-044241

Lender

Name	PMAC LENDING SERVICES INC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jun 1, 2052

Interest

Rate Type	Adjustable Rate
Rate	6.87%
Type Change Date	Jun 1, 2029
Change Frequency	6 Months
Min Rate At Change	6.87%
Max Rate At Change	11.8%
Index	Other
Margin	4
Max Rate	11.8%

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		$2,476,000 (+11.08%) Land $2,273,500 Building $202,500
2025	$27,096.00 (+16.53%) Homeowner's exemption	$2,229,000 (+16.95%) Land $2,047,000 Building $182,000
2023	$23,253.00 (+793.32%) Homeowner's exemption	$1,906,000 Land $1,750,000 Building $156,000	$2,118,600
2022	$2,603.00

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 713 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
Astound Broadband Cable	1,500 / 50
Sonic Telecom Fiber	1,000 / 1,000
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks, Verizon.

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