329 Walsh Rd, Atherton, CA 94027 Property Records

San Mateo County property record for 329 Walsh Rd, Atherton, CA 94027

Property Summary

Property Type	Single Family Home
Details	6 bd · 4.5 ba · 5,951 sqft · built 1974
Lot Size	1.06 acres (46,180 sqft)
Owner	2 Company Names on Record
Last Sale	$10,375,000 (May 2018)
Tax Bill	$133,391 (2025)
Deeds & Mortgages	Jul 2020 Transfer May 2018 Sale
Flood Zone	Zone X (minimal risk)
APN	`074-040-380`

Property Details

APN / Parcel Number

Primary APN	`074-040-380`

Interior

Bedrooms	6 Beds
Full Baths	4.5 Baths
Half Baths	1 Half Bath
Total Rooms	13 Rooms
Stories	2 Stories
Building Area	5,951 sqft Living Area
1st Floor Area	4,205 sqft
2nd Floor Area	1,746 sqft
Family Room	Family Room
Study	Study
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1974
Effective Year Built	Effective 1974
Roof Material	Tar & Gravel
Lot Area	46,180 sqft
Lot Dimensions	265 ft deep x 174 ft wide
Garage Area	1,450 sqft
Parking Spaces	5 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	329 WALSH RD
City	ATHERTON
State	CA
Zip	94027-6436
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1001A
Legal Description	LOT 5 LEVISON ACRES NO 2 RSM 68/36
Legal Subdivision	LEVISON ACRES NO 2
Legal Lot Number	5
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 July 15, 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 Record
Mailing Address	329 WALSH RD, ATHERTON, CA 94027-6436
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Jul 31, 2020	Quit Claim Deed, Transfer ATTORNEY ONLY
May 24, 2018	Grant Deed, Transfer LAWYERS TITLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 24, 2018 · Amount on Record
Deed Sale	May 24, 2018 · Amount on Record
Prior Sale	Jun 30, 1995 · Amount on Record
Deed Document Number	201840309
Last Transfer Date	Jun 29, 2020
Transfer Doc	0000075206
Record Updated	Sep 20, 2026

July 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jul 31, 2020
Property Address	329 WALSH RD, ATHERTON, CA 94027-6436
Document Number	0000075206
Instrument Date	Jun 29, 2020
Instrument	75206
Transaction Type	Transfer
Record Updated	Aug 25, 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	Living Trust
Address	329 WALSH RD ATHERTON CA 940276436, ATHERTON, CA 94027-6436

May 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	May 24, 2018
Property Address	329 WALSH RD, ATHERTON, CA 94027-6436
Document Number	0000040309
Instrument Date	May 21, 2018
Instrument	40309
Transaction Type	Transfer
Record Updated	Jun 13, 2018
Title Company	LAWYERS TITLE

Transaction

Amount	Amount Recorded
Tax	$11,412.50
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	345 SELBY LN ATHERTON CA 940273932, ATHERTON, CA 94027-3932

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
2026		$12,283,030 (+2%) Land $9,284,686 Building $2,998,344
2025	$133,391.00 (+2.83%) Homeowner's exemption	$12,042,188 (+4.04%) Land $9,102,634 Building $2,939,554
2023	$129,716.00 (+4.87%) Homeowner's exemption	$11,574,576 Land $8,749,168 Building $2,825,408
2022	$123,691.00

Assessed value is set for property tax purposes and is not a market price estimate.

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 99.8% of the US · lower than 99.8% 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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