810 Folkstone Ave, San Mateo, CA 94402 Property Records

San Mateo County property record for 810 Folkstone Ave, San Mateo, CA 94402

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 1,200 sqft · built 1948
Lot Size	0.103 acres (4,500 sqft)
Owner	2 Company Names on Record
Tax Bill	$4,535 (2025)
Deeds & Mortgages	Apr 2021 Mortgage Sep 2019 Mortgage
Flood Zone	Zone X (reduced by levee)
APN	`035-081-100`

Property Details

APN / Parcel Number

Primary APN	`035-081-100`

Interior

Bedrooms	3 Beds
Full Baths	1 Bath
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,200 sqft Living Area
1st Floor Area	1,200 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1948
Effective Year Built	Effective 1948
Architectural Style	Ranch
Exterior Material	Stucco
Lot Area	4,500 sqft (0.103 acres)
Lot Dimensions	90 ft deep x 50 ft wide
Garage Area	250 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	810 FOLKSTONE AVE
City	SAN MATEO
State	CA
Zip	94402-1928
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOT 25 BLOCK 26 SUNNYBRAE MAP NO 3 RSM 26/11 12 13 CITY OF SAN MATEO
Legal Subdivision	SUNNYBRAE MAP NO 3
Legal Block	26
Legal Lot Number	25
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	4
Census Block	4008
Census Tract	607600

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 Company Names on Record
Mailing Address	810 FOLKSTONE AVE, SAN MATEO, CA 94402-1928
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Apr 14, 2021	Deed of Trust, Mortgage PROVIDENT CU
Sep 13, 2019	Deed of Trust, Mortgage · Conventional Mortgage PROVIDENT CU

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Jun 5, 2007
Transfer Doc	0000089053
Record Updated	Sep 20, 2026

April 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	810 FOLKSTONE AVE, SAN MATEO, CA 94402-1928
Transaction Type	Mortgage
Record Updated	May 19, 2021
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	810 FOLKSTONE AVE, SAN MATEO, CA 94402-1928

Mortgage

Document Number	0000059335
Date	Apr 14, 2021
Instrument	2021-059335

Lender

Name	PROVIDENT CU
Type	Credit Union
Address	REDWOOD CITY, CA 94065

Agreement

Amount	Amount Recorded

September 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	810 FOLKSTONE AVE, SAN MATEO, CA 94402-1928
Document Number	0000078508
Instrument Date	Sep 13, 2019
Transaction Type	Mortgage
Record Updated	Oct 11, 2019
Title Company	NOT AVAILABLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	810 FOLKSTONE AVE SAN MATEO CA 944021928, SAN MATEO, CA 94402-1928

Mortgage

Document Number	0000078508
Date	Sep 24, 2019
Instrument	78508

Lender

Name	PROVIDENT CU
Type	Credit Union
Address	REDWOOD CITY, CA 94065

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	180 Months
Due	Sep 23, 2034

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		$306,380 (+2%) Land $190,175 Building $116,205
2025	$4,535.00 (+6.98%) Homeowner's exemption	$300,374 (+4.04%) Land $186,447 Building $113,927
2023	$4,239.00 (+2.69%) Homeowner's exemption	$288,712 Land $179,208 Building $109,504	$1,082,250
2022	$4,128.00

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 reduced by levee · depends on levee performance
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	4 in force
Nearby Flood Claims	2 (2010–2022)
Claims Outside the SFHA	1 of 2
Most Recent Claim	Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides

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 797 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 · Fiber in parts of the area	2,000 / 250
Astound Broadband Cable · Fiber in parts of the area	1,500 / 50
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks, Sonic Telecom, Unwired, Verizon.

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