421 Derby Ave, San Mateo, CA 94403 Property Records

San Mateo County property record for 421 Derby Ave, San Mateo, CA 94403

Property Summary

Property Type	Condominium
Details	4 bd · 3.5 ba · 2,071 sqft · built 2013
Lot Size	0.204 acres (8,867 sqft)
Owner	2 Trust Names on File
Last Sale	$962,500 (Oct 2013)
Tax Bill	$20,861 (2025)
Deeds & Mortgages	Feb 2021 Mortgage Aug 2022 Mortgage + 4 more
Flood Zone	Zone X (minimal risk)
APN	`123-940-060`

Property Details

APN / Parcel Number

Primary APN	`123-940-060`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	7 Rooms
Units	63 Units
Stories	3 Stories
Building Area	2,071 sqft Living Area

Exterior

Year Built	Built 2013
Effective Year Built	Effective 2013
Architectural Style	Condo/Apartment
Lot Area	8,867 sqft (0.204 acres)
Garage Area	465 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	421 DERBY AVE
City	SAN MATEO
State	CA
Zip	94403-3444
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Legal Description	UNIT V6 AMELIA-PHASE 3 CONDO RES 3.2 BAY MEADOWS PHASE II 2013-08652
Legal Subdivision	AMELIA-PHASE 3 CONDO RES 3.2 BAY MEADOWS
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	1
Census Block	1017
Census Tract	607500

Owner

421 Derby Ave, a condominium, is held in a trust since July 2020.

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

Owner of Record	2 Trust Names on File
Mailing Address	41 LOS ALTOS PL, SAN MATEO, CA 94402-3916
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
Feb 9, 2021	Deed of Trust, Mortgage · Conventional Mortgage GOOGAIN INC
Aug 10, 2022	Deed of Trust, Mortgage · Conventional Mortgage GOOGAIN INC
Jan 11, 2023	Deed of Trust, Mortgage · Line of Credit JACKSON FLAGSTAR CENTRE OFFICE
Aug 27, 2020	Quit Claim Deed, Transfer WFG NATIONAL TITLE INSURANCE, WFG NAT'L TITLE INS
Jun 16, 2020	Deed of Trust, Mortgage · Conventional Mortgage GOOGAIN
Apr 1, 2020	Quit Claim Deed, Transfer NOT AVAILABLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Oct 9, 2013 · Amount on File
Deed Sale	Oct 9, 2013 · Amount on File
Deed Document Number	2013143934
Last Transfer Date	Jul 5, 2020
Transfer Doc	0000086366
Record Updated	Sep 20, 2026

February 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	421 DERBY AVE, SAN MATEO, CA 94403-3444
Transaction Type	Mortgage
Record Updated	May 30, 2023
Title Company	WFT NATIONAL TITLE, WFG NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	421 DERBY AVE V6, V6, SAN MATEO, CA 94403-3444
Investor	Possibly a Property Investor

Mortgage

Document Number	0000021833
Date	Feb 9, 2021
Instrument	2021-021833

Lender

Name	GOOGAIN INC
Type	Mortgage Company
Address	SUNNYVALE, CA 94086

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Mar 1, 2051

August 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	421 DERBY AVE, SAN MATEO, CA 94403-3444
Transaction Type	Mortgage
Record Updated	May 30, 2023
Title Company	TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATIONAL TITLE INS CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	421 DERBY AVE V6, V6, SAN MATEO, CA 94403-3444
Investor	Possibly a Property Investor

Mortgage

Document Number	0000059926
Date	Aug 10, 2022
Instrument	2022-059926

Lender

Name	GOOGAIN INC
Type	Mortgage Company
Address	SUNNYVALE, CA 94086

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	343 Months
Due	Mar 1, 2051

January 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	421 DERBY AVE, SAN MATEO, CA 94403-3444
Transaction Type	Mortgage
Record Updated	May 30, 2023

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	421 DERBY AVE V6, V6, SAN MATEO, CA 94403-3444
Investor	Possibly a Property Investor

Mortgage

Document Number	0000001191
Date	Jan 11, 2023
Instrument	2023-001191

Lender

Name	JACKSON FLAGSTAR CENTRE OFFICE
Type	Bank
Address	TROY, MI 48098

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	360 Months
Due	Jan 1, 2053

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

August 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Aug 27, 2020
Property Address	421 DERBY AVE, SAN MATEO, CA 94403-3444
Document Number	0000086366
Instrument Date	Jul 5, 2020
Instrument	86366
Transaction Type	Transfer
Record Updated	Sep 22, 2020
Title Company	WFG NATIONAL TITLE INSURANCE, WFG NAT'L TITLE INS

Transaction

Tax	$0.00
Amount Accuracy	Full Value
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	421 DERBY AVE #V6 SAN MATEO CA 944033444, V6, SAN MATEO, CA 94403-3444
Investor	Possibly a Property Investor

June 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	421 DERBY AVE, SAN MATEO, CA 94403-3444
Document Number	0000059623
Instrument Date	Jun 16, 2020
Transaction Type	Mortgage
Record Updated	Jul 24, 2020
Title Company	WFG NATIONAL TITLE COMPANY, WFG NAT'L TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	421 DERBY AVE #V6 SAN MATEO CA 944033444, V6, SAN MATEO, CA 94403-3444
Investor	Possibly a Property Investor

Mortgage

Document Number	0000059623
Date	Jun 25, 2020
Instrument	59623

Lender

Name	GOOGAIN
Address	SUNNYVALE, CA 94086

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Jun 24, 2050

April 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Apr 1, 2020
Property Address	421 DERBY AVE, SAN MATEO, CA 94403-3444
Document Number	0000030124
Instrument Date	Mar 9, 2020
Instrument	30124
Transaction Type	Transfer
Record Updated	May 1, 2020
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	421 DERBY AVE SAN MATEO CA 944033444, SAN MATEO, CA 94403-3444

Tax Assessment & Valuation

The 2025 property tax bill for 421 Derby Ave was $20,861.

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		$1,203,179 (+2%) Land $360,951 Building $842,228
2025	$20,861.00	$1,179,588 Land $353,874 Building $825,714
2023	$19,612.00 (+1.81%) Homeowner's exemption	$1,133,785 Land $340,134 Building $793,651	$1,782,000
2022	$19,263.00

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

Flood

FEMA maps place 421 Derby Ave in Zone X, an area of minimal flood risk, though there have been 5 flood claims nearby since 1982.

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	3 in force
Nearby Flood Claims	5 (1982–1998)
Claims Outside the SFHA	1 of 5
Most Recent Claim	Feb 1998 · Severe Winter Storms And Flooding
Claims by Event	Coastal Storms, Floods, Slides & Tornadoes, Mar 1983 · 2 claims Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 2 claims

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 421 Derby 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 819 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · Fixed Wireless 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
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks.

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