306 41st Ave, San Mateo, CA 94403 Property Records

San Mateo County property record for 306 41st Ave, San Mateo, CA 94403

Property Summary

Property Type	Single Family Home
Details	5 bd · 3 ba · 2,710 sqft · built 1946
Lot Size	0.255 acres (11,088 sqft)
Owner	Individual Name on File
Last Sale	$2,620,000 (May 2018)
Tax Bill	$29,623 (2025)
Deeds & Mortgages	Apr 2022 Mortgage Sep 2018 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`042-191-270`

Property Details

APN / Parcel Number

Primary APN	`042-191-270`

Interior

Bedrooms	5 Beds
Full Baths	3 Baths
Total Rooms	10 Rooms
Stories	2 Stories
Building Area	2,710 sqft Living Area
Gross Area	2,850 sqft
1st Floor Area	1,480 sqft
2nd Floor Area	740 sqft
Basement Area	140 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1946
Effective Year Built	Effective 1946
Architectural Style	Raised Ranch
Exterior Material	Stucco
Construction Type	Frame
Roof Material	Composition Shingle
Lot Area	11,088 sqft (0.255 acres)
Lot Dimensions	144 ft deep x 77 ft wide
Garage Area	410 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	306 41ST AVE
City	SAN MATEO
State	CA
Zip	94403-4306
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOT 9 BLOCK 13 SAN MATEO KNOLLS RSM 22/8 9 CITY OF SAN MATEO
Legal Subdivision	SAN MATEO KNOLLS
Legal Block	13
Legal Lot Number	9
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	2
Census Block	2002
Census Tract	607100

Owner

306 41st Ave is owned and occupied by an individual who bought it in May 2018.

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

Owner of Record	Individual Name on File
Mailing Address	306 41ST AVE, SAN MATEO, CA 94403-4306
Occupancy	Owner Occupied
Owner Type	Individual

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
Apr 11, 2022	Deed of Trust, Mortgage · Conventional Mortgage HSBC BANK USA
Sep 7, 2018	Deed of Trust, Mortgage · ARM HSBC BANK USA
Aug 21, 2019	Deed of Trust, Mortgage · ARM HSBC BANK USA
May 24, 2018	Grant Deed, Transfer BANK OF AMERICA

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	May 24, 2018 · Amount on File
Deed Sale	May 24, 2018 · Amount on File
Prior Sale	Jun 20, 2012 · Amount on File
Deed Document Number	201840221
Prior Transfer Date	Oct 25, 2011
Prior Transfer Doc	0000130684
Record Updated	Oct 29, 2026

April 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	306 41ST AVE, SAN MATEO, CA 94403-4306
Transaction Type	Mortgage
Record Updated	Apr 29, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	306 41ST AVE, SAN MATEO, CA 94403-4306

Mortgage

Document Number	0000030658
Date	Apr 11, 2022
Instrument	2022-030658

Lender

Name	HSBC BANK USA
Type	Bank
Address	NEW YORK, NY 10018

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	May 1, 2052

Interest

Rate Type	Adjustable Rate
Rate	3.15%
Type Change Date	May 1, 2029
Change Frequency	6 Months
Min Rate At Change	3%
Max Rate At Change	8.15%
Index	Other
Margin	3
Max Rate	8.15%

September 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	306 41ST AVE, SAN MATEO, CA 94403-4306
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000070282
Date	Sep 7, 2018
Instrument	2018-070282

Lender

Name	HSBC BANK USA
Type	Bank
Address	NEW YORK, NY 10018

Agreement

Type	ARM
Amount	Amount on Record
Term	361 Months
Due	Oct 1, 2048

Interest

Rate Type	Adjustable Rate
Rate	3.89%
Type Change Date	Oct 1, 2025
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	8.89%
Index	1-Year LIBOR
Max Rate	8.89%

August 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	306 41ST AVE, SAN MATEO, CA 94403-4306
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000066659
Date	Aug 21, 2019
Instrument	2019-066659

Lender

Name	HSBC BANK USA
Type	Bank
Address	NEW YORK, NY 10018

Agreement

Type	ARM
Amount	Amount on Record
Term	361 Months
Due	Sep 1, 2049

Interest

Rate Type	Adjustable Rate
Rate	3.28%
Adjustable	Adjustable Rate Rider
Type Change Date	Sep 1, 2026
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	8.28%
Index	1-Year LIBOR
Max Rate	8.28%

May 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	May 24, 2018
Property Address	306 41ST AVE, SAN MATEO, CA 94403-4306
Document Number	0000040221
Instrument Date	May 15, 2018
Instrument	40221
Transaction Type	Transfer
Record Updated	Jun 12, 2018
Title Company	OLD REPUBLIC TITLE

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$2,882.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	306 41ST AVE SAN MATEO CA 944034306, SAN MATEO, CA 94403-4306

Mortgage

Document Number	40222
Date	May 24, 2018
Instrument	40222

Lender

Name	BANK OF AMERICA
Type	Bank
Address	101 S TRYON ST, CHARLOTTE, NC 28280-0002

Agreement

Amount	Amount on Record
Term	360 Months
Due	May 23, 2048

Interest

Rate Type	Adjustable Rate
Rate	4.25%

Tax Assessment & Valuation

The 2025 property tax bill for 306 41st Ave was $29,623 with a homeowner's exemption.

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		$2,500,000 (-) Land $1,622,000 Building $878,000
2025	$29,623.00 Homeowner's exemption	$2,500,000 Land $1,622,000 Building $878,000
2023	$36,700.00 (+8.71%) Homeowner's exemption	$2,865,350 Land $1,859,197 Building $1,006,153	$2,495,700
2022	$33,760.00

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

Flood

FEMA maps place 306 41st Ave in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective September 10, 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

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

Wildfire

The area around 306 41st 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 785 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	1,500 / 50
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100

May also be available: GeoLinks, T-Mobile.

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