3206 Upper Lock Ave, Belmont, CA 94002 Property Records

San Mateo County property record for 3206 Upper Lock Ave, Belmont, CA 94002

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 2,065 sqft · built 1960
Lot Size	0.124 acres (5,406 sqft)
Owner	2 Individual Names on Record
Last Sale	$2,158,000 (May 2023)
Tax Bill	$27,236 (2025)
Deeds & Mortgages	May 2023 Sale & Mortgage Oct 2021 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`043-211-150`

Property Details

APN / Parcel Number

Primary APN	`043-211-150`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	6 Rooms
Stories	2 Stories
Building Area	2,065 sqft Living Area
Gross Area	2,520 sqft
1st Floor Area	943 sqft
2nd Floor Area	736 sqft
Basement Area	455 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1960
Effective Year Built	Effective 1960
Architectural Style	Contemporary
Exterior Material	Wood Siding
Construction Type	Frame
Roof Material	Tar & Gravel
Lot Area	5,406 sqft (0.124 acres)
Lot Dimensions	108 ft deep x 51 ft wide
Garage Type	Basement
Garage Area	440 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	3206 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 39 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	39
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 are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	2 Individual Names on Record
Mailing Address	3206 UPPER LOCK AVE, BELMONT, CA 94002-1317
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
May 16, 2023	Grant Deed, Transfer · Conventional Mortgage BANK OF AMERICA NA
Oct 12, 2021	Deed of Trust, Mortgage · Conventional Mortgage ALLY BANK
Jan 18, 2019	Grant Deed, Transfer · Conventional Mortgage WELLS FARGO BANK NA
Jul 28, 2017	Quit Claim Deed, Transfer Quitclaim

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 16, 2023 · Amount on Record
Deed Sale	May 16, 2023 · Amount on Record
Prior Sale	Jan 18, 2019 · Amount on Record
Deed Document Number	202322891
Prior Transfer Date	Jul 21, 2017
Prior Transfer Doc	0000065556
Record Updated	Oct 29, 2026

May 2023: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	May 16, 2023
Property Address	3206 UPPER LOCK AVE, BELMONT, CA 94002-1317
Document Number	0000022891
Map Reference	MB 15 PG 29-38
Instrument Date	May 15, 2023
Instrument	2023-022891
Transaction Type	Transfer
Record Updated	Jun 8, 2023
Title Company	LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$2,373.80
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	3206 UPPER LOCK AVE, BELMONT, CA 94002-1317

Mortgage

Document Number	0000022892
Date	May 16, 2023
Instrument	2023-022892

Lender

Name	BANK OF AMERICA NA
Type	Bank

Agreement

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

October 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	3206 UPPER LOCK AVE, BELMONT, CA 94002-1317
Transaction Type	Mortgage
Record Updated	Nov 3, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3206 UPPER LOCK AVE, BELMONT, CA 94002-1317

Mortgage

Document Number	0000143599
Date	Oct 12, 2021
Instrument	2021-143599

Lender

Name	ALLY BANK
Type	Bank
Address	CHARLOTTE, NC 28202

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	354 Months
Due	Apr 1, 2051

January 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jan 18, 2019
Property Address	3206 UPPER LOCK AVE, BELMONT, CA 94002-1317
Document Number	0000003831
Map Reference	MB 15 PG 29-38
Instrument Date	Jan 11, 2019
Instrument	2019-003831
Transaction Type	Transfer
Record Updated	Aug 9, 2021
Title Company	LAWYERS TITLE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	00000

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	3206 UPPER LOCK AVE, BELMONT, CA 94002-1317

Mortgage

Document Number	0000003832
Date	Jan 18, 2019
Instrument	2019-003832

Lender

Name	WELLS FARGO BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Feb 1, 2049

July 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jul 28, 2017
Property Address	3206 UPPER LOCK AVE, BELMONT, CA 94002-1317
Document Number	0000065556
Instrument Date	Jul 21, 2017
Instrument	65556
Transaction Type	Transfer
Record Updated	Aug 11, 2017

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	3206 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		$2,290,085 (+2%) Land $1,432,630 Building $857,455
2025	$27,236.00 (+22.51%) Homeowner's exemption	$2,245,183 (+22.6%) Land $1,404,540 Building $840,643
2023	$22,231.00 (+4.23%) Homeowner's exemption	$1,831,318 Land $1,286,641 Building $544,677	$1,883,340
2022	$21,329.00

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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