86 Mesa Ct, #86A, Atherton, CA 94027 Property Records

San Mateo County property record for 86 Mesa Ct, #86A, Atherton, CA 94027

Property Summary

Property Type	Single Family Home
Details	6 bd · 6.5 ba · 10,587 sqft · built 2020
Lot Size	1 acres (43,571 sqft)
Owner	2 Company Names on Record
Last Sale	$5,100,000 (Dec 2016)
Tax Bill	$141,037 (2025)
Deeds & Mortgages	Aug 2021 Line of Credit May 2018 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`073-201-060`

Property Details

APN / Parcel Number

Primary APN	`073-201-060`

Interior

Bedrooms	6 Beds
Full Baths	6.5 Baths
Half Baths	1 Half Bath
Total Rooms	14 Rooms
Stories	2 Stories
Building Area	10,587 sqft Living Area
1st Floor Area	3,568 sqft
2nd Floor Area	2,270 sqft
Basement Area	4,749 sqft
Finished Basement	4,749 sqft
Family Room	Family Room

Exterior

Year Built	Built 2020
Effective Year Built	Effective 2020
Lot Area	43,571 sqft
Lot Dimensions	244 ft deep x 189 ft wide
Garage Area	1,130 sqft
Parking Spaces	4 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	86 MESA CT, 86A
City	ATHERTON
State	CA
Zip	94027-6418
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1001A
Legal Description	LOT 8 MESA HEIGHTS RSM 44/22 TOWN OF ATHERTON
Legal Subdivision	MESA HEIGHTS
Legal Lot Number	8
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	3
Census Block	3004
Census Tract	611400

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	86 MESA CT, ATHERTON, CA 94027-6418
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Aug 27, 2021	Deed of Trust, Mortgage · Line of Credit FIRST REPUBLIC BANK
May 16, 2018	Quit Claim Deed, Transfer Quitclaim
Nov 8, 2017	Trustee's Deed, Construction Loan · Construction Mortgage BANK OF THE SIERRA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 23, 2016 · Amount on Record
Deed Sale	Dec 23, 2016 · Amount on Record
Deed Document Number	2016137830
Prior Transfer Date	Jan 12, 1993
Prior Transfer Doc	0000020293
Record Updated	Oct 29, 2026

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	86 MESA CT, ATHERTON, CA 94027-6418
Transaction Type	Mortgage
Record Updated	Aug 5, 2022
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	86 MESA CT, ATHERTON, CA 94027-6418

Mortgage

Document Number	0000124823
Date	Aug 27, 2021
Instrument	2021-124823

Lender

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

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	60 Months
Due	Aug 26, 2026

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

May 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	May 16, 2018
Property Address	86 MESA CT, ATHERTON, CA 94027-6418
Document Number	0000037933
Instrument Date	Mar 21, 2018
Instrument	37933
Transaction Type	Transfer
Record Updated	Jun 8, 2018

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	50 TALLWOOD CT ATHERTON CA 940276432, ATHERTON, CA 94027-6432

November 2017: Trustee's Deed, Construction Loan

Document Type	Trustee's Deed
Jurisdiction	SAN MATEO CA
Recording Date	Nov 8, 2017
Property Address	86 MESA CT, ATHERTON, CA 94027-6418
Instrument Date	Nov 3, 2017
Instrument	99247
Transaction Type	Construction Loan
Record Updated	Dec 6, 2017

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	86 MESA CT ATHERTON CA 940276418, ATHERTON, CA 94027-6418

Mortgage

Document Number	0000099247
Date	Nov 8, 2017
Instrument	99247

Lender

Name	BANK OF THE SIERRA
Type	Bank
Address	86 N MAIN ST, PORTERVILLE, CA 93257-3712

Agreement

Type	Construction Mortgage
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate

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
2026		$12,989,087 (+2%) Land $5,978,176 Building $7,010,911
2025	$141,037.00 (+2.83%)	$12,734,400 (+4.04%) Land $5,860,957 Building $6,873,443
2023	$137,160.00 (+2.83%)	$12,239,910 Land $5,633,370 Building $6,606,540
2022	$133,385.00

Assessed value is set for property tax purposes and is not a market price estimate.

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 96% of the US · lower than 97.4% of California
Wildfire Likelihood	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 153 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 · DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20

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

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