59 Lupin Ln, Atherton, CA 94027 Property Records

San Mateo County property record for 59 Lupin Ln, Atherton, CA 94027

Property Summary

Property Type	Single Family Home
Details	4 bd · 4.5 ba · 4,820 sqft · built 1950
Lot Size	0.919 acres (40,047 sqft)
Owner	2 Company Names on Record
Tax Bill	$27,452 (2025)
Deeds & Mortgages	Aug 2023 Transfer Mar 2018 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`061-083-080`

Property Details

APN / Parcel Number

Primary APN	`061-083-080`

Interior

Bedrooms	4 Beds
Full Baths	4.5 Baths
Half Baths	1 Half Bath
Total Rooms	9 Rooms
Stories	1 Story
Building Area	4,820 sqft Living Area
1st Floor Area	1,020 sqft
2nd Floor Area	1,900 sqft
Family Room	Family Room

Exterior

Year Built	Built 1950
Effective Year Built	Effective 1950
Lot Area	40,047 sqft (0.919 acres)
Lot Dimensions	218 ft deep x 184 ft wide
Garage Area	750 sqft
Parking Spaces	3 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	59 LUPIN LN
City	ATHERTON
State	CA
Zip	94027-2133
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1001A
Legal Description	LOT 15 GREENOAKS UNIT NO 2 RSM 24/70 TOWN OF ATHERTON
Legal Subdivision	GREENOAKS UNIT NO 2
Legal Lot Number	15
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	3
Census Block	3006
Census Tract	611500

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	2 Company Names on Record
Mailing Address	59 LUPIN LN, ATHERTON, CA 94027-2133
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Aug 23, 2023	Intrafamily Transfer, Transfer
Mar 21, 2018	Quit Claim Deed, Transfer ATTORNEY ONLY
Oct 5, 2017	Quit Claim Deed, Transfer Quitclaim

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	May 5, 1994
Transfer Doc	0000138922
Record Updated	Oct 29, 2026

August 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	Aug 23, 2023
Property Address	59 LUPIN LN, ATHERTON, CA 94027-2133
Document Number	0000040768
Map Reference	MB 24 PG 69&70
Instrument Date	Jul 11, 2023
Instrument	2023-040768
Transaction Type	Transfer
Record Updated	Oct 2, 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	59 LUPIN LN, ATHERTON, CA 94027-2133

March 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Mar 21, 2018
Property Address	59 LUPIN LN, ATHERTON, CA 94027-2133
Document Number	0000021071
Instrument Date	Jan 8, 2018
Instrument	21071
Transaction Type	Transfer
Record Updated	Apr 11, 2018
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	Revocable Trust
Address	59 LUPIN LN ATHERTON CA 940272133, ATHERTON, CA 94027-2133

October 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Oct 5, 2017
Property Address	59 LUPIN LN, ATHERTON, CA 94027-2133
Document Number	0000088310
Instrument Date	May 30, 2017
Instrument	88310
Transaction Type	Transfer
Record Updated	Nov 1, 2017

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Sole Owner
Address	59 LUPIN LN ATHERTON CA 940272133, ATHERTON, CA 94027-2133

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	Menlo Park City 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		$2,289,925 (+2%) Land $878,577 Building $1,411,348
2025	$27,452.00 (+5.03%) Homeowner's exemption	$2,245,025 (+4.04%) Land $861,350 Building $1,383,675
2023	$26,138.00 (+2.49%) Homeowner's exemption	$2,157,850 Land $827,903 Building $1,329,947	$7,163,730
2022	$25,504.00

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
Nearby Flood Policies	2 in force

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 96% of the US · lower than 97.4% of California
Wildfire Likelihood	Under 0.01% 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 354 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL	5,000 / 5,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: Etheric Networks, GeoLinks, Race Communications.

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