87 Walnut Ave, Atherton, CA 94027 Property Records

San Mateo County property record for 87 Walnut Ave, Atherton, CA 94027 · Last verified July 2026

Property Summary

Property Type	Single Family Home
Details	4 bd · 3.5 ba · 2,554 sqft · built 1958
Lot Size	0.15 acres (6,550 sqft)
Owner	Individual Name on File
Last Sale	$1,165,000 (Jul 2005)
Tax Bill	$27,656 (2025)
Flood Zone	Zone X (minimal risk)
APN	`060-331-020`

Property Details

APN / Parcel Number

Primary APN	`060-331-020`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	2,554 sqft Living Area
1st Floor Area	1,289 sqft
2nd Floor Area	1,265 sqft
Family Room	Family Room
Study	Study
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1958
Effective Year Built	Effective 1958
Architectural Style	Traditional
Exterior Material	Stucco
Roof Material	Wood Shingle
Lot Area	6,550 sqft (0.15 acres)
Lot Dimensions	131 ft deep x 50 ft wide
Garage Area	445 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	87 WALNUT AVE
City	ATHERTON
State	CA
Zip	94027-3820
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 20 BLOCK A MENLO PARK VILLA LOTS RSM 1/93 TOWN OF ATHERTON
Legal Subdivision	MENLO PARK VILLA
Legal Block	A
Legal Lot Number	20
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	2
Census Block	2023
Census Tract	611500

Owner

Source: San Mateo County records · APN 060-331-020

Assessment roll updated July 15, 2026 · Last verified July 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on File
Mailing Address	87 WALNUT AVE, ATHERTON, CA 94027-3820
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Single Person

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Jul 08, 2005 · Amount on Record
Deed Sale	Jul 08, 2005 · Amount on Record
Deed Document Number	2005114351
Last Transfer Date	Oct 22, 2008
Transfer Doc	0000116682
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified July 2026

Property Jurisdictions

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

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$2,301,820 (+2%) Land $811,947 Building $1,489,873
2025	$27,656.00 (+5.02%)	$2,256,688 (+4.04%) Land $796,027 Building $1,460,661
2023	$26,335.00 (+2.47%)	$2,169,060 Land $765,117 Building $1,403,943	$3,170,430
2022	$25,699.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, San Mateo County (06081C), updated September 10, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060816115002, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Minimal
500-Year Floodplain	No
Flood Insurance Cost	Premium on Record median of 4 individual NFIP policies nearby
Nearby Flood Policies	4 in force 4 of 4 on primary residences

Wildfire

Wildfire Risk	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach

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.