363 E 40th Ave, San Mateo, CA 94403 Property Records

San Mateo County property record for 363 E 40th Ave, San Mateo, CA 94403

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 1,180 sqft · built 1950
Lot Size	0.122 acres (5,291 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,385,000 (May 2016)
Tax Bill	$20,865 (2025)
Deeds & Mortgages	Aug 2020 Line of Credit
Flood Zone	Zone X (reduced by levee)
APN	`040-221-060`

Property Details

APN / Parcel Number

Primary APN	`040-221-060`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	5 Rooms
Stories	1 Story
Building Area	1,180 sqft Living Area
1st Floor Area	860 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1950
Effective Year Built	Effective 1950
Architectural Style	Ranch
Exterior Material	Stucco
Construction Type	Frame
Roof Material	Composition Shingle
Lot Area	5,291 sqft (0.122 acres)
Lot Dimensions	100 ft deep x 50 ft wide
View / Lot	Corner
Garage Area	210 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

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

Location & Zoning

Street Address	363 E 40TH AVE
City	SAN MATEO
State	CA
Zip	94403-3659
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOT 24 BLOCK 20 SAN MATEO VILLAGE UNIT NO 3 RSM 30/12 13 CITY OF SAN MATEO
Legal Subdivision	SAN MATEO VILLAGE UNIT NO 3
Legal Block	20
Legal Lot Number	24
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	3
Census Block	3006
Census Tract	608501

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	363 E 40TH AVE, SAN MATEO, CA 94403-3659
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 27, 2016 · Amount on Record
Deed Sale	May 27, 2016 · Amount on Record
Prior Sale	Apr 21, 2005 · Amount on Record
Deed Document Number	201650887
Prior Transfer Date	Jan 18, 2008
Prior Transfer Doc	0000006106
Record Updated	Sep 20, 2026

August 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	363 E 40TH AVE, SAN MATEO, CA 94403-3659
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	OLD REPUBLIC TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	363 E 40TH AVE, SAN MATEO, CA 94403-3659

Mortgage

Document Number	0000083693
Date	Aug 21, 2020
Instrument	2020-083693

Lender

Name	STAR ONE CU
Type	Credit Union
Address	SUNNYVALE, CA 94088

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	302 Months
Due	Oct 20, 2045

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

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		$1,672,340 (+2%) Land $836,170 Building $836,170
2025	$20,865.00 (+1.77%) Homeowner's exemption	$1,639,550 (+4.04%) Land $819,775 Building $819,775
2024	$20,502.00 (+3.3%)
2023	$19,847.00 (+0.9%) Homeowner's exemption	$1,575,886 Land $787,943 Building $787,943	$1,392,480
2022	$19,670.00

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
Flood Insurance Cost	Premium on Record median of 13 policies
Nearby Flood Policies	13 in force
Nearby Flood Claims	2 (1979–2010)
Claims Outside the SFHA	1 of 2
Most Recent Claim	Jan 2010 · other causes

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	Low lower than 99.1% of the US · lower than 99.2% of California
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond 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 605 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.

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