424 Williams Pl, San Mateo, CA 94401 Property Records

San Mateo County property record for 424 Williams Pl, San Mateo, CA 94401

Property Summary

Property Type	Multi-Family Dwellings
Details	7 bd · 6 ba · 7,571 sqft · built 1941
Lot Size	0.134 acres (5,853 sqft)
Owner	Company Name on File
Tax Bill	$39,172 (2025)
Deeds & Mortgages	Jan 2021 Mortgage Dec 2020 Sale + 2 more
Flood Zone	Zone X (minimal risk)
APN	`032-173-060`

Property Details

APN / Parcel Number

Primary APN	`032-173-060`

Interior

Bedrooms	7 Beds
Full Baths	6 Baths
Total Rooms	18 Rooms
Units	6 Units
Stories	3 Stories
Building Area	7,571 sqft Living Area

Exterior

Year Built	Built 1941
Effective Year Built	Effective 1941
Architectural Style	Multi-Family
Construction Type	Frame
Roof Type	Hip
Roof Material	Wood Shingle
Lot Area	5,853 sqft (0.134 acres)
Lot Dimensions	50 ft deep x 117 ft wide
View / Lot	Corner
Parking Spaces	5 Parking Spaces

Location & Zoning

Street Address	424 WILLIAMS PL
City	SAN MATEO
State	CA
Zip	94401-2470
Property Category	Residential
Property Type	Residential > Multi-Unit > Multi-Family Dwellings
Legal Description	LOT 6 ALBERT A MEYER SUB POR BLK 8 OF WESTERN ADD SAN MATEO RSM 16/7
Legal Subdivision	WESTERN ADD SAN MATEO
Legal Block	8
Legal Lot Number	6
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	3
Census Block	3003
Census Tract	605901

Owner

424 Williams Pl, a residential property, is owned by a company that acquired it in June 2018.

Source: San Mateo County records, as of August 31, 2026

Owner of Record	Company Name on File
Mailing Address	48 W 40TH AVE, SAN MATEO, CA 94403-4515
Owner Type	Company

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
Jan 28, 2021	Deed of Trust, Mortgage · Commercial Mortgage CATHAY BANK
Dec 2, 2020	Grant Deed, Transfer NORTH AMERICAN TITLE
May 8, 2020	Loan Modification, Mortgage · Conventional Mortgage ANTHONY GALLI
Jul 25, 2018	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Jun 6, 2018
Transfer Doc	0000057895
Record Updated	Oct 29, 2026

January 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	424 WILLIAMS PL, SAN MATEO, CA 94401-2470
Transaction Type	Mortgage
Record Updated	Aug 5, 2022
Title Company	FIDELITY NATIONAL TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	48 W 40TH AVE, SAN MATEO, CA 94403-4515

Mortgage

Document Number	0000014036
Date	Jan 28, 2021
Instrument	2021-014036

Lender

Name	CATHAY BANK
Type	Bank
Address	MILLBRAE, CA 94030

Agreement

Type	Commercial Mortgage
Amount	Amount on Record

December 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Dec 2, 2020
Property Address	424 WILLIAMS PL, SAN MATEO, CA 94401-2470
Document Number	0000137605
Instrument Date	Nov 25, 2020
Instrument	137605
Transaction Type	Transfer
Record Updated	Jan 20, 2021
Title Company	NORTH AMERICAN TITLE

Transaction

Amount	Amount on Record
Tax	$2,805.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	48 W 40TH AVE SAN MATEO CA 944034515, SAN MATEO, CA 94403-4515

May 2020: Loan Modification, Mortgage

Document Type	Loan Modification
Jurisdiction	SAN MATEO CA
Property Address	424 WILLIAMS PL, SAN MATEO, CA 94401-2470
Document Number	0000044716
Instrument Date	May 8, 2020
Transaction Type	Mortgage
Record Updated	Jun 9, 2020
Title Company	ATTORNEY ONLY

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	424 WILLIAMS PL SAN MATEO CA 944012470, SAN MATEO, CA 94401-2470

Mortgage

Document Number	0000044716
Date	May 15, 2020
Instrument	44716

Lender

Name	ANTHONY GALLI

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	24 Months
Due	May 14, 2022

July 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jul 25, 2018
Property Address	424 WILLIAMS PL, SAN MATEO, CA 94401-2470
Document Number	0000057895
Instrument Date	Jun 6, 2018
Instrument	57895
Transaction Type	Transfer
Record Updated	Aug 13, 2018
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	160 BOVET RD #220 SAN MATEO CA 944023124, 220, SAN MATEO, CA 94402-3124

Tax Assessment & Valuation

The 2025 property tax bill for 424 Williams Pl was $39,172, up 2.1% from the year before.

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
2026		$2,815,403 (+2%) Land $1,269,691 Building $1,545,712
2025	$39,172.00 (+2.07%)	$2,760,200 Land $1,244,796 Building $1,515,404
2024	$38,376.00 (+2.79%)
2023	$37,335.00 (-5.95%)	$2,653,020 Land $1,196,460 Building $1,456,560
2022	$39,698.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

FEMA maps place 424 Williams Pl in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective September 10, 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

The area around 424 Williams Pl 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 694 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
Astound Broadband Cable	1,500 / 50
Sonic Telecom Fiber	1,000 / 1,000
Verizon Fixed Wireless	1,000 / 75
Etheric Networks Fixed Wireless	250 / 100

May also be available: GeoLinks, T-Mobile, Unwired.

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