266 42nd Ave, San Mateo, CA 94403 Property Records

San Mateo County property record for 266 42nd Ave, San Mateo, CA 94403 · Last verified July 2026

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 1,320 sqft · built 1956
Lot Size	0.139 acres (6,065 sqft)
Owner	Company Name on File
Last Sale	$1,425,000 (Dec 2025)
Tax Bill	$10,503 (2025)
Deeds & Mortgages	Dec 2025 Sale & Mortgage Dec 2019 Transfer
Flood Zone	Zone X (minimal risk)
APN	`042-224-500`

Property Details

APN / Parcel Number

Primary APN	`042-224-500`

Interior

Bedrooms	3 Beds
Full Baths	1 Bath
Total Rooms	5 Rooms
Stories	1 Story
Building Area	1,320 sqft Living Area
Gross Area	2,840 sqft
1st Floor Area	1,200 sqft
Basement Area	1,640 sqft
Finished Basement	120 sqft
Unfinished Basement	1,520 sqft
Family Room	Family Room

Exterior

Year Built	Built 1956
Effective Year Built	Effective 1956
Lot Area	6,065 sqft (0.139 acres)
Lot Dimensions	95 ft deep x 70 ft wide
Garage Area	440 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	266 42ND AVE
City	SAN MATEO
State	CA
Zip	94403-5002
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 23 BLOCK 24 SAN MATEO KNOLLS MAP NO 2 RSM 24/61 62 CITY OF SAN MATEO
Legal Subdivision	SAN MATEO KNOLLS MAP NO 2
Legal Block	24
Legal Lot Number	23
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	2
Census Block	2005
Census Tract	607100

Owner

Source: San Mateo County records · APN 042-224-500

Assessment roll updated July 15, 2026 · Last verified July 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Company Name on File
Mailing Address	6496 WINDSOR LN, SAN JOSE, CA 95129-2946
Owner Type	Company
Vesting	Limited Liability Partnership

Deeds, Mortgages & Sale History

Date	Document
Dec 12, 2025	Grant Deed, Transfer · Commercial Mortgage GERALD REED OTTESEN TRUST
Dec 30, 2019	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Dec 12, 2025 · Amount on Record
Deed Sale	Dec 12, 2025 · Amount on Record
Deed Document Number	202568144
Prior Transfer Date	Feb 24, 2000
Prior Transfer Doc	0000025941
Record Updated	Sep 20, 2026

December 2025: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Dec 12, 2025
Property Address	266 42ND AVE, SAN MATEO, CA 94403-5002
Document Number	0000068144
Map Reference	MB 24 PG 60-62
Instrument Date	Dec 05, 2025
Instrument	2025-068144
Transaction Type	Transfer
Record Updated	Jan 02, 2026
Title Company	FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$8,692.50
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	6496 WINDSOR LN, SAN JOSE, CA 95129-2946

Mortgage

Document Number	0000068145
Date	Dec 12, 2025
Instrument	2025-068145

Lender

Name	GERALD REED OTTESEN TRUST
Type	Private Party

Agreement

Type	Commercial Mortgage
Amount	Amount Recorded

Mortgage

Document Number	0000068147
Date	Dec 12, 2025
Instrument	2025-068147

Lender

Name	LAUREN EDEN BENSON ETAL
Type	Private Party
Address	745 BOWHILL RD, HILLSBOROUGH, CA 94010

Agreement

Type	Commercial Mortgage
Amount	Amount Recorded

December 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Dec 30, 2019
Property Address	266 42ND AVE, SAN MATEO, CA 94403-5002
Document Number	0000111595
Instrument Date	Oct 11, 2019
Instrument	111595
Transaction Type	Transfer
Record Updated	Jan 21, 2020
Title Company	ATTORNEY ONLY

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	266 42ND AVE SAN MATEO CA 944035002, SAN MATEO, CA 94403-5002

Tax Assessment & Valuation

Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified July 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

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

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$1,425,000 (+71.12%) Land $1,188,000 Building $237,000
2025	$10,503.00 (+2%) Homeowner's exemption	$832,757 (+4.04%) Land $574,866 Building $257,891
2024	$10,297.00 (+4.39%)
2023	$9,864.00 (-0.02%) Homeowner's exemption	$800,425 Land $552,546 Building $247,879	$1,787,220
2022	$9,866.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, San Mateo County (06081C), updated September 10, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Minimal
500-Year Floodplain	No

Wildfire

Wildfire Risk	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach

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

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 785 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
Sonic Telecom	Fiber	10,000 / 10,000
AT&T	Fiber	5,000 / 5,000
Xfinity	Cable	2,000 / 250
Radiate Holdings	Cable	1,500 / 50
Verizon	Fixed Wireless	300 / 20
Etheric Communications, LLC.	Fixed Wireless (licensed-by-rule)	250 / 100

May also be available at this address: T-Mobile USA, AT&T, California Internet. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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