358 Walsh Rd, Atherton, CA 94027 Property Records

San Mateo County property record for 358 Walsh Rd, Atherton, CA 94027

Property Summary

Property Type	Single Family Home
Details	2901 bd · 10 ba · 13,524 sqft · built 1951
Lot Size	2.25 acres (98,405 sqft)
Owner	Company Name on File
Last Sale	$36,000,000 (Dec 2024)
Tax Bill	$395,446 (2025)
Deeds & Mortgages	May 2022 Construction Loan Dec 2024 Sale + 1 more
Flood Zone	Zone X (minimal risk)
APN	`073-202-100`

Property Details

APN / Parcel Number

Primary APN	`073-202-100`
Alternative APN	`073-203-060`

Interior

Bedrooms	2901 Beds
Full Baths	10 Baths
Half Baths	8 Half Baths
Total Rooms	2952 Rooms
Stories	1 Story
Building Area	13,524 sqft Living Area
1st Floor Area	2,120 sqft
2nd Floor Area	4,417 sqft
Family Room	Family Room
Study	Study
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1951
Effective Year Built	Effective 1951
Architectural Style	Ranch
Exterior Material	Wood Siding
Construction Type	Frame
Roof Material	Wood Shingle
Lot Area	98,405 sqft
Lot Dimensions	250 ft deep x 387 ft wide
Garage Type	Carport
Carport	Carport
Total Buildings	3 Buildings

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Old Parcel Number	073202100
Street Address	358 WALSH RD
City	ATHERTON
State	CA
Zip	94027-6460
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1001A
Legal Description	LOT 6 HILLVIEW HEIGHTS RSM 37/20 TOWN OF ATHERTON
Legal Subdivision	HILLVIEW HEIGHTS
Legal Lot Number	6
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	3
Census Block	3005
Census Tract	611400

Owner

358 Walsh Rd is owned by a company that bought it in December 2024.

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

Owner of Record	Company Name on File
Mailing Address	50 WOODSIDE PLZ, REDWOOD CITY, CA 94061-2500
Owner Type	Company
Vesting	Limited Liability Partnership

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
May 24, 2022	Deed of Trust, Mortgage · Construction Mortgage FIRST REPUBLIC BANK
Dec 23, 2024	Grant Deed, Transfer LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY
Aug 20, 2021	Grant Deed, Transfer · Conventional Mortgage FIRST REPUBLIC BANK

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Dec 23, 2024 · Amount on File
Deed Sale	Dec 23, 2024 · Amount on File
Prior Sale	Aug 20, 2021 · Amount on File
Deed Document Number	202468796
Prior Transfer Date	Aug 20, 2024
Prior Transfer Doc	0000043683
Record Updated	Sep 20, 2026

May 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	358 WALSH RD, ATHERTON, CA 94027-6460
Transaction Type	Mortgage
Record Updated	Sep 30, 2025
Title Company	LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	601 CALIFORNIA ST 1501, 1501, SAN FRANCISCO, CA 94108-2820

Mortgage

Document Number	0000042586
Date	May 24, 2022
Instrument	2022-042586

Lender

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

Agreement

Type	Construction Mortgage
Amount	Amount on Record
Term	36 Months
Due	May 15, 2025

Interest

Rate Type	Adjustable Rate
Rate	4.5%
Type Change Date	Jun 1, 2022
Change Frequency	Monthly
Min Rate At Change	4%
Max Rate At Change	14.9%
Index	Prime Rate
Max Rate	14.9%

December 2024: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Dec 23, 2024
Property Address	358 WALSH RD, ATHERTON, CA 94027-6460
Document Number	0000068796
Map Reference	MB 37 PG 20
Instrument Date	Dec 20, 2024
Instrument	2024-068796
Transaction Type	Transfer
Record Updated	Sep 30, 2025
Title Company	LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY

Transaction

Amount	Amount on Record
Tax	$39,600.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	50 WOODSIDE PLZ # 213, REDWOOD CITY, CA 94061-2500

August 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Aug 20, 2021
Property Address	358 WALSH RD, ATHERTON, CA 94027-6460
Document Number	0000122009
Map Reference	MB 37 PG 20
Instrument Date	Aug 16, 2021
Instrument	2021-122009
Transaction Type	Transfer
Record Updated	Sep 15, 2021
Title Company	LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$8,580.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	358 WALSH RD, ATHERTON, CA 94027-6460

Mortgage

Document Number	0000122010
Date	Aug 20, 2021
Instrument	2021-122010

Lender

Name	FIRST REPUBLIC BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	25 Months
Due	Sep 1, 2023

Interest

Rate Type	Adjustable Rate
Rate	3.25%
Type Change Date	Oct 1, 2021
Change Frequency	Annually
Min Rate At Change	3.25%
Max Rate At Change	10.9%
Index	1-Year LIBOR
Max Rate	10.9%

Tax Assessment & Valuation

The 2025 property tax bill for 358 Walsh Rd was $395,446.

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		$36,816,900 (+2.27%) Land $11,133,300 Building $25,683,600
2025	$395,446.00	$36,000,000 Land $10,915,000 Building $25,085,000
2023	$139,656.00 (+60.03%)	$12,465,400 Land $7,854,000 Building $4,611,400
2022	$87,270.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

FEMA maps place 358 Walsh Rd in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2022.

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 File 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

Wildfire risk around 358 Walsh Rd is low, with a 0.02% annual chance of 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 110 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Race Communications Fiber	10,000 / 10,000
AT&T Fiber · Fixed Wireless in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250

May also be available: Cruzio, Etheric Networks, GeoLinks, T-Mobile, Verizon.

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