510 Sylvan Ave, San Mateo, CA 94403 Property Records

San Mateo County property record for 510 Sylvan Ave, San Mateo, CA 94403

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 2,000 sqft · built 1941
Lot Size	0.125 acres (5,443 sqft)
Owner	2 Trust Names on File
Tax Bill	$8,876 (2025)
Deeds & Mortgages	Mar 2021 Mortgage Mar 2021 Transfer + 5 more
Flood Zone	Zone X (minimal risk)
APN	`039-302-220`

Property Details

APN / Parcel Number

Primary APN	`039-302-220`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Stories	2 Stories
Building Area	2,000 sqft Living Area
Gross Area	2,530 sqft
1st Floor Area	1,650 sqft
2nd Floor Area	350 sqft
Basement Area	530 sqft
Family Room	Family Room

Exterior

Year Built	Built 1941
Effective Year Built	Effective 1941
Lot Area	5,443 sqft (0.125 acres)
Lot Dimensions	109 ft deep x 50 ft wide
Garage Type	Basement
Garage Area	530 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	510 SYLVAN AVE
City	SAN MATEO
State	CA
Zip	94403-3214
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOT 24 BLOCK 17 SAN MATEO TERRACE MAP NO 5 RSM 22/35 CITY OFSAN MATEO
Legal Subdivision	SAN MATEO TERRACE MAP NO 5
Legal Block	17
Legal Lot Number	24
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	3
Census Block	3000
Census Tract	607300

Owner

510 Sylvan Ave is owner-occupied and held in a trust since March 2021.

Source: San Mateo County records, as of July 15, 2026

Owner of Record	2 Trust Names on File
Mailing Address	510 SYLVAN AVE, SAN MATEO, CA 94403-3214
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Mar 16, 2021	Intrafamily Transfer, Transfer · Conventional Mortgage QUICKEN LOANS LLC
Mar 16, 2021	Intrafamily Transfer, Transfer FIRST AMERICAN TITLE COMPANY
Apr 2, 2020	Deed of Trust, Mortgage · Line of Credit MERIWEST CU
Oct 13, 2017	Quit Claim Deed, Transfer FIRST AMERICAN TITLE
Oct 13, 2017	Quit Claim Deed, Transfer · Conventional Mortgage QUICKEN LNS
Jan 12, 2017	Quit Claim Deed, Transfer FIRST AMERICAN TITLE
Jan 12, 2017	Quit Claim Deed, Transfer · Conventional Mortgage QUICKEN LNS

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Mar 5, 2021
Transfer Doc	0000042262
Record Updated	Oct 29, 2026

March 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	Mar 16, 2021
Property Address	510 SYLVAN AVE, SAN MATEO, CA 94403-3214
Document Number	0000042260
Map Reference	MB 22 PG 35
Instrument Date	Mar 5, 2021
Instrument	2021-042260
Transaction Type	Transfer
Record Updated	Oct 18, 2022
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	510 SYLVAN AVE, SAN MATEO, CA 94403-3214

Mortgage

Document Number	0000042261
Date	Mar 16, 2021
Instrument	2021-042261

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	181 Months
Due	Apr 1, 2036

March 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	Mar 16, 2021
Property Address	510 SYLVAN AVE, SAN MATEO, CA 94403-3214
Document Number	0000042262
Map Reference	MB 22 PG 35
Instrument Date	Mar 5, 2021
Instrument	2021-042262
Transaction Type	Transfer
Record Updated	Jun 7, 2023
Title Company	FIRST AMERICAN TITLE COMPANY

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Family Trust
Address	510 SYLVAN AVE, SAN MATEO, CA 94403-3214

April 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	510 SYLVAN AVE, SAN MATEO, CA 94403-3214
Document Number	0000033549
Instrument Date	Apr 2, 2020
Transaction Type	Mortgage
Record Updated	May 15, 2020
Title Company	CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	510 SYLVAN AVE SAN MATEO CA 944033214, SAN MATEO, CA 94403-3214

Mortgage

Document Number	0000033549
Date	Apr 14, 2020
Instrument	33549

Lender

Name	MERIWEST CU
Type	Credit Union
Address	SAN JOSE, CA 95153-5353

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	300 Months
Due	Apr 13, 2045

Interest

Rate Type	Adjustable Rate

October 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Oct 13, 2017
Property Address	510 SYLVAN AVE, SAN MATEO, CA 94403-3214
Document Number	0000090613
Instrument Date	Oct 6, 2017
Instrument	90613
Transaction Type	Transfer
Record Updated	Nov 22, 2017
Title Company	FIRST AMERICAN TITLE

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	510 SYLVAN AVE SAN MATEO CA 944033214, SAN MATEO, CA 94403-3214

October 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Oct 13, 2017
Property Address	510 SYLVAN AVE, SAN MATEO, CA 94403-3214
Document Number	0000090611
Instrument Date	Oct 6, 2017
Instrument	90611
Transaction Type	Transfer
Record Updated	Nov 23, 2017
Title Company	FIRST AMERICAN TITLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	510 SYLVAN AVE SAN MATEO CA 944033214, SAN MATEO, CA 94403-3214

Mortgage

Document Number	90612
Date	Oct 13, 2017
Instrument	90612

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	180 Months
Due	Oct 12, 2032

January 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jan 12, 2017
Property Address	510 SYLVAN AVE, SAN MATEO, CA 94403-3214
Document Number	0000003761
Instrument Date	Jan 4, 2017
Instrument	3761
Transaction Type	Transfer
Record Updated	Jan 31, 2017
Title Company	FIRST AMERICAN TITLE

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	510 SYLVAN AVE SAN MATEO CA 944033214, SAN MATEO, CA 94403-3214

January 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jan 12, 2017
Property Address	510 SYLVAN AVE, SAN MATEO, CA 94403-3214
Document Number	0000003759
Instrument Date	Jan 4, 2017
Instrument	3759
Transaction Type	Transfer
Record Updated	Feb 1, 2017
Title Company	FIRST AMERICAN TITLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	510 SYLVAN AVE SAN MATEO CA 944033214, SAN MATEO, CA 94403-3214

Mortgage

Document Number	3760,
Date	Jan 12, 2017
Instrument	3760

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	180 Months
Due	Jan 11, 2032

Tax Assessment & Valuation

The 2025 property tax bill for 510 Sylvan Ave was $8,876 with a homeowner's exemption.

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		$638,400 (+2%) Land $189,359 Building $449,041
2025	$8,876.00 Homeowner's exemption	$625,884 Land $185,647 Building $440,237
2023	$8,849.00 (+2.43%) Homeowner's exemption	$601,582 Land $178,439 Building $423,143	$2,152,530
2022	$8,639.00

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 510 Sylvan Ave in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 2009.

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 Policies	2 in force
Nearby Flood Claims	2 (2009–2017)
Claims Outside the SFHA	2 of 2
Most Recent Claim	Jan 2017 · Severe Winter Storms, Flooding, 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

The area around 510 Sylvan Ave has no burnable land within ember reach, so its wildfire risk is not rated.

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 732 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 · Fixed Wireless, DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Astound Broadband Cable · Fiber in parts of the area	1,500 / 50

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

Nearby Properties on Sylvan Ave

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures