280 W 20th Ave, San Mateo, CA 94403 Property Records

San Mateo County property record for 280 W 20th Ave, San Mateo, CA 94403

Property Summary

Property Type	Condominium
Details	2 bd · 2.5 ba · 1,394 sqft · built 1996
Lot Size	2.5 acres (109,155 sqft)
Owner	Individual Name on Record
Last Sale	$1,005,000 (Dec 2022)
Tax Bill	$13,543 (2025)
Deeds & Mortgages	Dec 2022 Sale & Mortgage Jan 2021 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`103-730-140`

Property Details

APN / Parcel Number

Primary APN	`103-730-140`

Interior

Bedrooms	2 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	5 Rooms
Units	122 Units
Stories	2 Stories
Building Area	1,394 sqft Living Area
Game Room	Game Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1996
Effective Year Built	Effective 1996
Architectural Style	Condo/Apartment
Lot Area	109,155 sqft
Garage Type	Carport
Carport	Carport

Location & Zoning

Street Address	280 W 20TH AVE
City	SAN MATEO
State	CA
Zip	94403-1399
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Local Zoning Code	E100R4
Legal Description	UNIT 280 CORTE BELLA 95127665
Legal Subdivision	CORTE BELLA
Legal Lot Number	1
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	1
Census Block	1001
Census Tract	607400

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	Individual Name on Record
Mailing Address	280 W 20TH AVE, SAN MATEO, CA 94403-1399
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Dec 22, 2022	Grant Deed, Transfer · Conventional Mortgage ROCKET MORTGAGE LLC
Jan 22, 2021	Quit Claim Deed, Transfer MAXREAL CUPERTINO
Mar 30, 2019	Deed of Trust, Mortgage MAXREAL CUPERTINO
Nov 20, 2018	Grant Deed, Transfer BANK OF AMERICA

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Dec 22, 2022 · Amount on Record
Deed Sale	Dec 22, 2022 · Amount on Record
Prior Sale	Nov 20, 2018 · Amount on Record
Deed Document Number	202287313
Prior Transfer Date	Jan 6, 2021
Prior Transfer Doc	0000010799
Record Updated	Oct 29, 2026

December 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Dec 22, 2022
Property Address	280 W 20TH AVE, SAN MATEO, CA 94403-1399
Document Number	0000087313
Map Reference	MB 126 PG 3&4
Instrument Date	Dec 19, 2022
Instrument	2022-087313
Transaction Type	Transfer
Record Updated	Jan 17, 2023
Title Company	CHICAGO TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$6,130.50
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	280 W 20TH AVE, SAN MATEO, CA 94403-1399

Mortgage

Document Number	0000087314
Date	Dec 22, 2022
Instrument	2022-087314

Lender

Name	ROCKET MORTGAGE LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jan 1, 2053

January 2021: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jan 22, 2021
Property Address	280 W 20TH AVE, SAN MATEO, CA 94403-1399
Document Number	0000010799
Instrument Date	Jan 6, 2021
Instrument	10799
Transaction Type	Transfer
Record Updated	Feb 22, 2021
Title Company	CORNERSTONE TITLE COMPANY, CORNERSTONE TITLE CO

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	280 W 20TH AVE SAN MATEO CA 944031399, SAN MATEO, CA 94403-1399

Mortgage

Document Number	10800
Date	Jan 22, 2021
Instrument	10800

Lender

Name	MAXREAL CUPERTINO
Address	CUPERTINO, CA 95014

Agreement

Amount	Amount Recorded
Term	360 Months
Due	Jan 21, 2051

Interest

Rate Type	Adjustable Rate
Rate	2.75%

March 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	280 W 20TH AVE, SAN MATEO, CA 94403-1399
Document Number	0000024412
Instrument Date	Mar 30, 2019
Transaction Type	Mortgage
Record Updated	May 1, 2019
Title Company	WFG NATIONAL TITLE COMPANY, WFG NAT'L TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	280 W 20TH AVE SAN MATEO CA 944031399, SAN MATEO, CA 94403-1399

Mortgage

Document Number	0000024412
Date	Apr 5, 2019
Instrument	24412

Lender

Name	MAXREAL CUPERTINO
Address	10991 N DE ANZA BLVD, CUPERTINO, CA 95014-6303

Agreement

Amount	Amount Recorded
Term	360 Months
Due	Apr 4, 2049

Interest

Rate Type	Adjustable Rate
Rate	3.75%

November 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Nov 20, 2018
Property Address	280 W 20TH AVE, SAN MATEO, CA 94403-1399
Document Number	0000090660
Instrument Date	Nov 5, 2018
Instrument	90660
Transaction Type	Transfer
Record Updated	Dec 7, 2018
Title Company	FIRST AMERICAN TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$1,227.05
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	280 W 20TH AVE SAN MATEO CA 944031399, SAN MATEO, CA 94403-1399

Mortgage

Document Number	90661
Date	Nov 20, 2018
Instrument	90661

Lender

Name	BANK OF AMERICA
Type	Bank
Address	CHARLOTTE, NC 28255

Agreement

Amount	Amount Recorded
Term	360 Months
Due	Nov 19, 2048

Interest

Rate Type	Adjustable Rate
Rate	4.62%

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		$1,066,512 (+2%) Land $319,953 Building $746,559
2025	$13,543.00 (+1.31%)	$1,045,601 (+4.04%) Land $313,680 Building $731,921
2024	$13,368.00 (+1.89%)
2023	$13,120.00 (-13.71%)	$1,005,000 Land $301,500 Building $703,500	$874,350
2022	$15,204.00

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 Policies	1 in force

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 423 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
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks, Verizon.

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