415 Walsh Rd, Atherton, CA 94027 Property Records

San Mateo County property record for 415 Walsh Rd, Atherton, CA 94027

Property Summary

Property Type	Single Family Home
Details	2 bd · 3 ba · 3,280 sqft · built 1979
Lot Size	0.938 acres (40,849 sqft)
Owner	Company Name on Record
Tax Bill	$10,024 (2025)
Deeds & Mortgages	Feb 2020 Transfer Feb 2020 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`073-213-070`

Property Details

APN / Parcel Number

Primary APN	`073-213-070`

Interior

Bedrooms	2 Beds
Full Baths	3 Baths
Total Rooms	6 Rooms
Building Area	3,280 sqft Living Area
Gross Area	4,120 sqft
1st Floor Area	2,590 sqft
2nd Floor Area	690 sqft
Basement Area	840 sqft
Family Room	Family Room
Study	Study

Exterior

Year Built	Built 1979
Effective Year Built	Effective 1979
Lot Area	40,849 sqft (0.938 acres)
Lot Dimensions	202 ft deep x 203 ft wide
Garage Type	Basement
Garage Area	840 sqft
Parking Spaces	3 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	415 WALSH RD
City	ATHERTON
State	CA
Zip	94027-6438
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1001A
Legal Description	PARCEL C PARCEL MAP VOL 34/24
Legal Subdivision	MEZES RANCH
Legal Lot Number	1-20
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	3
Census Block	3009
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	Company Name on Record
Mailing Address	3100 CLAY ST, SAN FRANCISCO, CA 94115-1626
Owner Type	Company

Deeds, Mortgages & Sale History

Date	Document
Feb 11, 2020	Quit Claim Deed, Transfer ATTORNEY ONLY
Feb 11, 2020	Quit Claim Deed, Transfer ATTORNEY ONLY
Sep 12, 2019	Affidavit of Death, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Jan 16, 2020
Transfer Doc	0000011509
Record Updated	Oct 29, 2026

February 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Feb 11, 2020
Property Address	415 WALSH RD, ATHERTON, CA 94027-6438
Document Number	0000011510
Instrument Date	Jan 16, 2020
Instrument	11510
Transaction Type	Transfer
Record Updated	Mar 6, 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	Company
Address	415 WALSH RD ATHERTON CA 940276438, ATHERTON, CA 94027-6438

February 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Feb 11, 2020
Property Address	415 WALSH RD, ATHERTON, CA 94027-6438
Document Number	0000011509
Instrument Date	Jan 16, 2020
Instrument	11509
Transaction Type	Transfer
Record Updated	Mar 6, 2020
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer Partial Interest

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3100 CLAY ST SAN FRANCISCO CA 941151626, SAN FRANCISCO, CA 94115-1626

September 2019: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	SAN MATEO CA
Recording Date	Sep 12, 2019
Property Address	415 WALSH RD, ATHERTON, CA 94027-6438
Document Number	0000074344
Instrument Date	Aug 16, 2019
Instrument	74344
Transaction Type	Transfer
Record Updated	Oct 1, 2019
Title Company	ATTORNEY ONLY

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	3100 CLAY ST SAN FRANCISCO CA 941151626, SAN FRANCISCO, CA 94115-1626

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		$768,474 (+2%) Land $168,234 Building $600,240
2025	$10,024.00 (+3.67%)	$753,407 (+4.04%) Land $164,936 Building $588,471
2023	$9,669.00 (+2.63%)	$724,153 Land $158,532 Building $565,621
2022	$9,421.00

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 94% of the US · lower than 96% of California
Wildfire Likelihood	0.02% 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 168 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Cruzio Fixed Wireless	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20
AT&T DSL · Fiber in parts of the area	100 / 20

May also be available: Etheric Networks, Race Communications.

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