3204 Upper Lock Ave, Belmont, CA 94002 Property Records

San Mateo County property record for 3204 Upper Lock Ave, Belmont, CA 94002

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,440 sqft · built 1959
Lot Size	0.109 acres (4,726 sqft)
Owner	2 Company Names on Record
Tax Bill	$2,625 (2025)
Deeds & Mortgages	Feb 2018 Mortgage Apr 2018 Transfer
Flood Zone	Zone X (minimal risk)
APN	`043-211-140`

Property Details

APN / Parcel Number

Primary APN	`043-211-140`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Building Area	1,440 sqft Living Area
Gross Area	2,140 sqft
1st Floor Area	1,210 sqft
2nd Floor Area	230 sqft
Basement Area	700 sqft
Family Room	Family Room

Exterior

Year Built	Built 1959
Effective Year Built	Effective 1959
Lot Area	4,726 sqft (0.109 acres)
Lot Dimensions	95 ft deep x 50 ft wide
Garage Type	Basement
Garage Area	700 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	3204 UPPER LOCK AVE
City	BELMONT
State	CA
Zip	94002-1317
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1000B
Legal Description	LOT 38 BLOCK 119 BELMONT CO CLUB SUB NO 10 RSM 15/29 TO 38 CITY OF BELMONT
Legal Subdivision	BELMONT CO CLUB SUB
Legal Block	119
Legal Lot Number	38
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	5
Census Block	5017
Census Tract	608800

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	3204 UPPER LOCK AVE, BELMONT, CA 94002-1317
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Feb 16, 2018	Deed of Trust, Mortgage · Conventional Mortgage JEFFREY J BARRELIER
Apr 12, 2018	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Jan 2, 2018
Transfer Doc	0000027838
Record Updated	Sep 20, 2026

February 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	3204 UPPER LOCK AVE, BELMONT, CA 94002-1317
Document Number	0000012801
Instrument Date	Feb 16, 2018
Transaction Type	Mortgage
Record Updated	Mar 13, 2018

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3204 UPPER LOCK AVE BELMONT CA 940021317, BELMONT, CA 94002-1317

Mortgage

Document Number	0000012801
Date	Feb 23, 2018
Instrument	12801

Lender

Name	JEFFREY J BARRELIER
Address	1536 COLUMBUS AVE, BURLINGAME, CA 94010-5512

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded

April 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Apr 12, 2018
Property Address	3204 UPPER LOCK AVE, BELMONT, CA 94002-1317
Document Number	0000027838
Instrument Date	Jan 2, 2018
Instrument	27838
Transaction Type	Transfer
Record Updated	May 1, 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	Revocable Trust
Address	3204 UPPER LOCK AVE BELMONT CA 940021317, BELMONT, CA 94002-1317

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	California
Municipality	Belmont City
County	San Mateo County
Elementary School District	Belmont-Redwood Shores Elementary School District (KG - 08)
Secondary School District	Sequoia Union High School District (09 - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$128,976 (+2%) Land $27,478 Building $101,498
2025	$2,625.00 (+2.46%) Homeowner's exemption	$126,448 (+4.04%) Land $26,940 Building $99,508
2023	$2,562.00 (+6.04%) Homeowner's exemption	$121,540 Land $25,895 Building $95,645	$1,702,350
2022	$2,416.00

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 Claims	1 (1980)
Most Recent Claim	Jan 1980 · tidal / storm surge

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	MID-PENINSULA WATER DISTRICT serves 31,059 people · EPA ID CA4110001
Water Source	Purchased surface water from several systems
Last State Inspection	Feb 2025
Lead	Under 1 ppb (2022–2024) 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 434 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Sonic Telecom Fiber	10,000 / 10,000
AT&T Fiber	5,000 / 5,000
Xfinity Cable	2,000 / 250

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

Cell Coverage

5G (outdoors only) and 4G LTE

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