309 Walsh Rd, Atherton, CA 94027 Property Records

San Mateo County property record for 309 Walsh Rd, Atherton, CA 94027

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,500 sqft · built 1951
Lot Size	0.196 acres (8,553 sqft)
Owner	2 Company Names on Record
Tax Bill	$3,364 (2025)
Deeds & Mortgages	Mar 2023 Line of Credit Jun 2019 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`074-012-350`

Property Details

APN / Parcel Number

Primary APN	`074-012-350`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,500 sqft Living Area
1st Floor Area	1,500 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1951
Effective Year Built	Effective 1951
Architectural Style	Ranch
Exterior Material	Stucco
Roof Material	Wood Shingle
Lot Area	8,553 sqft (0.196 acres)
Lot Dimensions	139 ft deep x 62 ft wide
Garage Area	440 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Heating Fuel	Gas
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	309 WALSH RD
City	ATHERTON
State	CA
Zip	94027-6436
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1000A
Legal Description	SWLY 20.92 FT OF LOT 17 & NELY 40.63 FT X 34.65 FT F&R MEAS OF LOT 18 BLOCK 8 MENLO HEIGHTS RSM 2/32 TOWN OF ATHERTON
Legal Subdivision	MENLO HEIGHTS
Legal Block	8
Legal Lot Number	17,18
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	3
Census Block	3008
Census Tract	611400

Owner

Source: San Mateo County records, as of August 6, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	2 Company Names on Record
Mailing Address	2726 CAROLINA AVE, REDWOOD CITY, CA 94061-3245
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Mar 20, 2023	Deed of Trust, Mortgage · Line of Credit FIRST REPUBLIC BANK
Jun 14, 2019	Correction Deed, Transfer ATTORNEY ONLY
Mar 15, 2019	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	May 23, 2019
Transfer Doc	0000045839
Record Updated	Oct 29, 2026

March 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	309 WALSH RD, ATHERTON, CA 94027-6436
Transaction Type	Mortgage
Record Updated	Apr 17, 2023
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	2726 CAROLINA AVE, REDWOOD CITY, CA 94061-3245

Mortgage

Document Number	0000011960
Date	Mar 20, 2023
Instrument	2023-011960

Lender

Name	FIRST REPUBLIC BANK
Type	Bank
Address	SAN FRANCISCO, CA 94111

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	300 Months
Due	Mar 26, 2048

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

June 2019: Correction Deed, Transfer

Document Type	Correction Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jun 14, 2019
Property Address	309 WALSH RD, ATHERTON, CA 94027-6436
Document Number	0000045839
Instrument Date	May 23, 2019
Instrument	45839
Transaction Type	Transfer
Record Updated	Jul 11, 2019
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	2726 CAROLINA AVE REDWOOD CITY CA 940613245, REDWOOD CITY, CA 94061-3245

March 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Mar 15, 2019
Property Address	309 WALSH RD, ATHERTON, CA 94027-6436
Document Number	0000018169
Instrument Date	Feb 12, 2019
Instrument	18169
Transaction Type	Transfer
Record Updated	Apr 1, 2019
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	Living Trust
Address	2726 CAROLINA AVE REDWOOD CITY CA 940613245, REDWOOD CITY, CA 94061-3245

Tax Assessment & Valuation

Source: San Mateo County assessment roll, as of July 15, 2026

Property Jurisdictions

Type	Name
State	California
Municipality	Atherton Town
County	San Mateo County
Elementary School District	Las Lomitas Elementary School District (KG - 08)
Secondary School District	Sequoia Union High School District (09 - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$147,186 (+2%) Land $29,949 Building $117,237
2025	$3,364.00 (+5.55%)	$144,301 (+4.04%) Land $29,362 Building $114,939
2023	$3,187.00 (+2.18%)	$138,700 Land $28,223 Building $110,477	$4,110,030
2022	$3,119.00

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
Flood Insurance Cost	Premium on Record median of 10 policies
Nearby Flood Policies	10 in force
Nearby Flood Claims	1 (2022)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides

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	Low lower than 96% of the US · lower than 97.4% of California
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond 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 - BEAR GULCH private · serves 60,382 people · EPA ID CA4110006
Water Source	Surface water
Last State Inspection	Feb 2025
Lead	4 ppb (2022–2024) 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 589 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
Cruzio Fixed Wireless	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100

May also be available: Race Communications, Sonic Telecom, T-Mobile.

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