4015 Marsten Ave, Belmont, CA 94002 Property Records

San Mateo County property record for 4015 Marsten Ave, Belmont, CA 94002

Property Summary

Property Type	Single Family Home
Details	3 bd · 3 ba · 2,910 sqft · built 1971
Lot Size	0.164 acres (7,163 sqft)
Owner	2 Individual Names on Record
Last Sale	$2,960,000 (Dec 2021)
Tax Bill	$37,156 (2025)
Deeds & Mortgages	Dec 2021 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`043-350-190`

Property Details

APN / Parcel Number

Primary APN	`043-350-190`

Interior

Bedrooms	3 Beds
Full Baths	3 Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	2,910 sqft Living Area
Gross Area	3,810 sqft
1st Floor Area	1,950 sqft
Basement Area	900 sqft
Family Room	Family Room
Study	Study

Exterior

Year Built	Built 1971
Effective Year Built	Effective 1971
Lot Area	7,163 sqft (0.164 acres)
Lot Dimensions	119 ft deep x 60 ft wide
Garage Type	Basement
Garage Area	900 sqft
Parking Spaces	3 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	4015 MARSTEN AVE
City	BELMONT
State	CA
Zip	94002-1253
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOT 1 MARSTEN TERRACE RSM 62/37 38
Legal Subdivision	MARSTEN TERRACE
Legal Lot Number	1
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	5
Census Block	5009
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 Individual Names on Record
Mailing Address	4015 MARSTEN AVE, BELMONT, CA 94002-1253
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 15, 2021 · Amount on Record
Deed Sale	Dec 15, 2021 · Amount on Record
Prior Sale	Mar 13, 2012 · Amount on Record
Deed Document Number	2021171210
Prior Transfer Date	Sep 23, 2015
Prior Transfer Doc	0000103511
Record Updated	Oct 29, 2026

December 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Dec 15, 2021
Property Address	4015 MARSTEN AVE, BELMONT, CA 94002-1253
Document Number	0000171210
Map Reference	MB 62 PG 37&38
Instrument Date	Dec 9, 2021
Instrument	2021-171210
Transaction Type	Transfer
Record Updated	Jan 4, 2022
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$3,256.00
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	4015 MARSTEN AVE, BELMONT, CA 94002-1253
Investor	Possibly a Property Investor

Mortgage

Document Number	0000171211
Date	Dec 15, 2021
Instrument	2021-171211

Lender

Name	CITIBANK NA
Type	Bank

Agreement

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

Interest

Rate Type	Adjustable Rate
Rate	2.37%
Type Change Date	Jan 1, 2029
Change Frequency	6 Months
Min Rate At Change	2.75%
Max Rate At Change	7.37%
Index	Other
Max Rate	7.37%

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		$3,203,998 (+2%) Land $2,381,350 Building $822,648
2025	$37,156.00 (+22.07%) Homeowner's exemption	$3,141,175 (+19.89%) Land $2,334,657 Building $806,518
2023	$30,439.00 (-10.29%) Homeowner's exemption	$2,620,000 Land $1,940,000 Building $680,000	$2,367,900
2022	$33,931.00

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 95% of the US · lower than 97% of California
Wildfire Likelihood	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 314 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber	5,000 / 5,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	1,000 / 75

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

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