237 42nd Ave, San Mateo, CA 94403 Property Records

San Mateo County property record for 237 42nd Ave, San Mateo, CA 94403 · Last verified August 2026

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 2,260 sqft · built 1955
Lot Size	0.325 acres (14,166 sqft)
Owner	2 Company Names on File
Last Sale	$1,150,000 (Sep 2021)
Tax Bill	$15,719 (2025)
Deeds & Mortgages	Sep 2021 Sale Sep 2021 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`042-251-080`

Property Details

APN / Parcel Number

Primary APN	`042-251-080`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	8 Rooms
Stories	1 Story
Building Area	2,260 sqft Living Area
1st Floor Area	1,280 sqft
Family Room	Family Room

Exterior

Year Built	Built 1955
Effective Year Built	Effective 1955
Lot Area	14,166 sqft (0.325 acres)
Lot Dimensions	204 ft deep x 70 ft wide
Garage Area	430 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	237 42ND AVE
City	SAN MATEO
State	CA
Zip	94403-5001
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 16 BLOCK 25 SAN MATEO KNOLLS MAP NO 2 RSM 24/61 62 CITY OF SAN MATEO
Legal Subdivision	SAN MATEO KNOLLS MAP NO 2
Legal Block	25
Legal Lot Number	16
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	2
Census Block	2006
Census Tract	607100

Owner

Source: San Mateo County records · APN 042-251-080

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

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

Owner of Record	2 Company Names on File
Mailing Address	4040 ARROYO TRL, CARMEL, CA 93923-8826
Owner Type	Company
Vesting	Life Tenant

Deeds, Mortgages & Sale History

Date	Document
Sep 21, 2021	Grant Deed, Transfer OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY
Sep 21, 2021	Intrafamily Transfer, Transfer OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY
Nov 20, 2017	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Sep 21, 2021 · Amount on Record
Deed Sale	Sep 21, 2021 · Amount on Record
Deed Document Number	2021134922
Prior Transfer Date	Sep 14, 2021
Prior Transfer Doc	0000134923
Record Updated	Sep 20, 2026

September 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Sep 21, 2021
Property Address	237 42ND AVE, SAN MATEO, CA 94403-5001
Document Number	0000134922
Map Reference	MB 24 PG 60-62
Instrument Date	Sep 16, 2021
Instrument	2021-134922
Transaction Type	Transfer
Record Updated	Oct 25, 2021
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount Recorded
Tax	$7,015.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	PO BOX 5253, BUENA, WA 98921

September 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	Sep 21, 2021
Property Address	237 42ND AVE, SAN MATEO, CA 94403-5001
Document Number	0000134923
Map Reference	MB 24 PG 60-62
Instrument Date	Sep 14, 2021
Instrument	2021-134923
Transaction Type	Transfer
Record Updated	Oct 25, 2021
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	PO BOX 5253, CARMEL, CA 93921-5253

November 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Nov 20, 2017
Property Address	237 42ND AVE, SAN MATEO, CA 94403-5001
Document Number	0000102756
Instrument Date	Sep 08, 2017
Instrument	102756
Transaction Type	Transfer
Record Updated	Jan 03, 2018
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	Separate Estate/Property
Address	1828 FALCON RIDGE DR PETALUMA CA 949545874, PETALUMA, CA 94954-5874

Tax Assessment & Valuation

Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified August 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		$1,274,851 (+2%) Land $755,537 Building $519,314
2025	$15,719.00 (+4.39%)	$1,249,856 (+4.04%) Land $740,724 Building $509,132
2023	$15,058.00 (+1.29%)	$1,201,325 Land $711,962 Building $489,363	$2,171,250
2022	$14,866.00

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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