70 Macbain Ave, Atherton, CA 94027 Property Records

San Mateo County property record for 70 Macbain Ave, Atherton, CA 94027

Property Summary

Property Type	Single Family Home
Details	6 bd · 4.5 ba · 5,820 sqft · built 1994
Lot Size	0.981 acres (42,733 sqft)
Owner	2 Company Names on File
Tax Bill	$24,002 (2025)
Flood Zone	Zone X (minimal risk)
APN	`070-354-040`

Property Details

APN / Parcel Number

Primary APN	`070-354-040`

Interior

Bedrooms	6 Beds
Full Baths	4.5 Baths
Half Baths	1 Half Bath
Total Rooms	14 Rooms
Stories	1 Story
Building Area	5,820 sqft Living Area
Gross Area	7,580 sqft
1st Floor Area	3,120 sqft
2nd Floor Area	2,700 sqft
Attic	Attic
Attic Area	1,050 sqft
Basement Area	710 sqft
Family Room	Family Room
Study	Study

Exterior

Year Built	Built 1994
Effective Year Built	Effective 1994
Lot Area	42,733 sqft (0.981 acres)
Lot Dimensions	285 ft deep x 150 ft wide
Parking Spaces	3 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	70 MACBAIN AVE
City	ATHERTON
State	CA
Zip	94027-4119
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1001A
Legal Description	LOT 25 THOMPSONS SUB VALPARAISO PARK RSM 3/76 TOWN OF ATHERTON
Legal Subdivision	PARAISO PARK
Legal Lot Number	25
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	1
Census Block	1010
Census Tract	611400

Owner

Source: San Mateo County assessment roll, APN 070-354-040, as of 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	2 Company Names on File
Mailing Address	70 MACBAIN AVE, ATHERTON, CA 94027-4119
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Transfer Date	Jan 11, 2012
Transfer Doc	0000006167
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

Source: San Mateo County assessment roll as of 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		$1,960,350 (+2%) Land $779,001 Building $1,181,349
2025	$24,002.00 (+5.06%)	$1,921,913 (+4.04%) Land $763,727 Building $1,158,186
2023	$22,846.00 (+2.49%)	$1,847,285 Land $734,071 Building $1,113,214	$8,078,850
2022	$22,292.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, San Mateo County (06081C), as of September 10, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060816114001, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	2 in force
Nearby Flood Claims	2 (1998)
Claims Outside the SFHA	2 of 2
Most Recent Claim	Feb 1998 · Severe Winter Storms And Flooding
Claims by Event	Severe Winter Storms And Flooding, Feb 1998 · 2 claims

Wildfire

Wildfire Risk	Low lower than 94% of the US · lower than 96% of California
Wildfire Likelihood	Under 0.01% annual chance
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.

Internet Providers

Source: FCC Broadband Data Collection, 253 locations within half a mile, as of December 31, 2025 · Last verified October 2026

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

May also be available: California Internet, Race Telecommunications, Sonic Telecom.

Drinking Water

Source: EPA Safe Drinking Water Information System, water system CA4110006, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CALIFORNIA WATER SERVICE - BEAR GULCH private · serves 60,382 people
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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.