459 Walsh Rd, Atherton, CA 94027 Property Records

San Mateo County property record for 459 Walsh Rd, Atherton, CA 94027

Property Summary

Property Type	Single Family Home
Details	4 bd · 3.5 ba · 3,719 sqft · built 1974
Lot Size	1.09 acres (47,583 sqft)
Owner	2 Company Names on Record
Last Sale	$7,500,000 (Jun 2023)
Tax Bill	$91,242 (2025)
Deeds & Mortgages	Jun 2023 Sale Oct 2021 Mortgage + 4 more
Flood Zone	Zone X (minimal risk)
APN	`074-371-110`

Property Details

APN / Parcel Number

Primary APN	`074-371-110`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	3,719 sqft Living Area
Gross Area	4,103 sqft
1st Floor Area	1,795 sqft
2nd Floor Area	1,924 sqft
Basement Area	384 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1974
Effective Year Built	Effective 1974
Architectural Style	Contemporary
Exterior Material	Shingle
Construction Type	Frame
Roof Material	Other
Lot Area	47,583 sqft
Lot Dimensions	193 ft deep x 252 ft wide
Garage Type	Basement
Garage Area	540 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	459 WALSH RD
City	ATHERTON
State	CA
Zip	94027-6438
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1001A
Legal Description	LOT 11 ATHERTON WEST RSM 55/36 TOWN OF ATHERTON
Legal Subdivision	ATHERTON WEST
Legal Lot Number	11
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 October 19, 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	459 WALSH RD, ATHERTON, CA 94027-6438
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Jun 30, 2023	Grant Deed, Transfer CORNERSTONE TITLE COMPANY
Oct 4, 2021	Deed of Trust, Mortgage · Conventional Mortgage MORGAN STANLEY PRIVATE BANK NA
Nov 17, 2021	Intrafamily Transfer, Transfer
Nov 17, 2021	Intrafamily Transfer, Transfer
Nov 17, 2021	Grant Deed, Transfer
May 25, 2021	Grant Deed, Transfer LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 30, 2023 · Amount on Record
Deed Sale	Jun 30, 2023 · Amount on Record
Prior Sale	Nov 17, 2021 · Amount on Record
Deed Document Number	202331492
Prior Transfer Date	Jan 22, 2015
Prior Transfer Doc	0000043138
Record Updated	Oct 29, 2026

June 2023: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jun 30, 2023
Property Address	459 WALSH RD, ATHERTON, CA 94027-6438
Document Number	0000031492
Map Reference	MB 55 PG 36
Instrument Date	Jun 23, 2023
Instrument	2023-031492
Transaction Type	Transfer
Record Updated	Jul 27, 2023
Title Company	CORNERSTONE TITLE COMPANY

Transaction

Amount	Amount Recorded
Tax	$8,250.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Family Trust
Address	459 WALSH RD, ATHERTON, CA 94027-6438

October 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	459 WALSH RD, ATHERTON, CA 94027-6438
Transaction Type	Mortgage
Record Updated	Oct 27, 2021
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	459 WALSH RD, ATHERTON, CA 94027-6438

Mortgage

Document Number	0000140813
Date	Oct 4, 2021
Instrument	2021-140813

Lender

Name	MORGAN STANLEY PRIVATE BANK NA
Type	Bank
Address	CINCINNATI, OH 45245

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2051

November 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	Nov 17, 2021
Property Address	459 WALSH RD, ATHERTON, CA 94027-6438
Document Number	0000160021
Map Reference	MB 55 PG 36
Instrument Date	Sep 4, 2021
Instrument	2021-160021
Transaction Type	Transfer
Record Updated	Jun 7, 2023

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Family Trust
Address	459 WALSH RD, ATHERTON, CA 94027-6438

November 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	Nov 17, 2021
Property Address	459 WALSH RD, ATHERTON, CA 94027-6438
Document Number	0000160020
Map Reference	MB 55 PG 36
Instrument Date	Sep 4, 2021
Instrument	2021-160020
Transaction Type	Transfer
Record Updated	Jun 7, 2023

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	459 WALSH RD, ATHERTON, CA 94027-6438

November 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Nov 17, 2021
Property Address	459 WALSH RD, ATHERTON, CA 94027-6438
Document Number	0000160019
Map Reference	MB 55 PG 36
Instrument Date	Sep 4, 2021
Instrument	2021-160019
Transaction Type	Transfer
Record Updated	Dec 9, 2021

Transaction

Amount	Amount Recorded
Tax	$22.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	459 WALSH RD, ATHERTON, CA 94027-6438

May 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	May 25, 2021
Property Address	459 WALSH RD, ATHERTON, CA 94027-6438
Document Number	0000081430
Map Reference	MB 55 PG 36
Instrument Date	May 19, 2021
Instrument	2021-081430
Transaction Type	Transfer
Record Updated	Jun 15, 2021
Title Company	LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY

Transaction

Amount	Amount Recorded
Tax	$8,140.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	459 WALSH RD, ATHERTON, CA 94027-6438

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		$8,410,257 (+2.72%) Land $7,003,972 Building $1,406,285
2025	$91,242.00 (+2.67%) Homeowner's exemption	$8,187,743 (+3.84%) Land $6,866,640 Building $1,321,103
2023	$88,872.00 (+7.33%) Homeowner's exemption	$7,885,282 Land $6,120,000 Building $1,765,282	$6,528,960
2022	$82,801.00

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 63% of the US · lower than 78% of California
Wildfire Likelihood	0.04% annual chance
Exposure	Direct burnable vegetation

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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