621 Guildford Ave, San Mateo, CA 94402 Property Records

San Mateo County property record for 621 Guildford Ave, San Mateo, CA 94402

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 1,180 sqft · built 1946
Lot Size	0.103 acres (4,500 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,380,000 (Jul 2020)
Tax Bill	$20,825 (2025)
Deeds & Mortgages	Mar 2022 Mortgage Jul 2020 Sale & Mortgage + 1 more
Flood Zone	Zone X (reduced by levee)
APN	`035-077-160`

Property Details

APN / Parcel Number

Primary APN	`035-077-160`

Interior

Bedrooms	3 Beds
Full Baths	1 Bath
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,180 sqft Living Area
1st Floor Area	1,180 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1946
Effective Year Built	Effective 1946
Lot Area	4,500 sqft (0.103 acres)
Lot Dimensions	90 ft deep x 50 ft wide
Garage Area	260 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	621 GUILDFORD AVE
City	SAN MATEO
State	CA
Zip	94402-2171
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOT 7 BLOCK 26 SUNNYBRAE MAP NO 3 RSM 26/11 12 13 CITY OF SAN MATEO
Legal Subdivision	SUNNYBRAE MAP NO 3
Legal Block	26
Legal Lot Number	7
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	4
Census Block	4008
Census Tract	607600

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	621 GUILDFORD AVE, SAN MATEO, CA 94402-2171
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Date	Document
Mar 16, 2022	Deed of Trust, Mortgage · Conventional Mortgage CITIBANK NA
Jul 23, 2020	Grant Deed, Transfer · Conventional Mortgage CITIBANK NA
Dec 29, 2016	Deed of Trust, Mortgage BANK OF AMERICA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 23, 2020 · Amount on Record
Deed Sale	Jul 23, 2020 · Amount on Record
Prior Sale	Apr 4, 2014 · Amount on Record
Deed Document Number	202071162
Prior Transfer Date	Feb 26, 2007
Prior Transfer Doc	0000080459
Record Updated	Sep 20, 2026

March 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	621 GUILDFORD AVE, SAN MATEO, CA 94402-2171
Transaction Type	Mortgage
Record Updated	Apr 6, 2022
Title Company	NORTH AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	621 GUILDFORD AVE, SAN MATEO, CA 94402-2171

Mortgage

Document Number	0000022982
Date	Mar 16, 2022
Instrument	2022-022982

Lender

Name	CITIBANK NA
Type	Bank
Address	O FALLON, MO 63368

Agreement

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

July 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jul 23, 2020
Property Address	621 GUILDFORD AVE, SAN MATEO, CA 94402-2171
Document Number	0000071162
Map Reference	MB 26 PG 11-13
Instrument Date	Jul 14, 2020
Instrument	2020-071162
Transaction Type	Transfer
Record Updated	Aug 9, 2021
Title Company	OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$8,418.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	621 GUILDFORD AVE, SAN MATEO, CA 94402-2171

Mortgage

Document Number	0000071163
Date	Jul 23, 2020
Instrument	2020-071163

Lender

Name	CITIBANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Aug 1, 2050

Interest

Rate Type	Adjustable Rate
Rate	2.62%
Type Change Date	Aug 1, 2030
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	7.62%
Index	1-Year LIBOR
Max Rate	7.62%

December 2016: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	621 GUILDFORD AVE, SAN MATEO, CA 94402-2171
Document Number	0000001789
Instrument Date	Dec 29, 2016
Transaction Type	Mortgage
Record Updated	Jan 24, 2017

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	621 GUILDFORD AVE SAN MATEO CA 944022171, SAN MATEO, CA 94402-2171

Mortgage

Document Number	0000001789
Date	Jan 6, 2017
Instrument	1789

Lender

Name	BANK OF AMERICA
Type	Bank
Address	CHARLOTTE, NC 28255

Agreement

Amount	Amount Recorded
Term	360 Months
Due	Jan 5, 2047

Tax Assessment & Valuation

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		$1,677,607 (+2%) Land $993,671 Building $683,936
2025	$20,825.00 (+16.9%) Homeowner's exemption	$1,644,714 (+14.55%) Land $974,188 Building $670,526
2023	$17,815.00 (-0.57%) Homeowner's exemption	$1,435,752 Land $936,360 Building $499,392	$1,339,470
2022	$17,917.00

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 reduced by levee · depends on levee performance
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	4 in force
Nearby Flood Claims	2 (2010–2022)
Claims Outside the SFHA	1 of 2
Most Recent Claim	Dec 2022 · Severe Winter Storms, Flooding, Landslides, 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

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 797 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 · Fiber in parts of the area	2,000 / 250
Astound Broadband Cable · Fiber in parts of the area	1,500 / 50
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks, Sonic Telecom, Unwired, Verizon.

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