89 Alejandra Ave, Atherton, CA 94027 Property Records

San Mateo County property record for 89 Alejandra Ave, Atherton, CA 94027

Property Summary

Property Type	Single Family Home
Details	3 bd · 3 ba · 2,680 sqft · built 1956
Lot Size	0.978 acres (42,589 sqft)
Owner	Company Name on File
Last Sale	$8,750,000 (Apr 2024)
Tax Bill	$100,411 (2025)
Deeds & Mortgages	Apr 2024 Sale Mar 2021 Sale + 3 more
Flood Zone	Zone X (minimal risk)
APN	`070-354-090`

Property Details

APN / Parcel Number

Primary APN	`070-354-090`

Interior

Bedrooms	3 Beds
Full Baths	3 Baths
Total Rooms	8 Rooms
Stories	1 Story
Building Area	2,680 sqft Living Area
1st Floor Area	2,120 sqft
Family Room	Family Room

Exterior

Year Built	Built 1956
Effective Year Built	Effective 1956
Lot Area	42,589 sqft (0.978 acres)
Lot Dimensions	284 ft deep x 150 ft wide

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	89 ALEJANDRA AVE
City	ATHERTON
State	CA
Zip	94027-4106
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1001A
Legal Description	LOT 28 THOMPSONS SUB VALPARAISO PARK RSM 3/76 TOWN OF ATHERTON
Legal Subdivision	PARAISO PARK
Legal Lot Number	28
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	1
Census Block	1010
Census Tract	611400

Owner

89 Alejandra Ave is owned by a company that bought it in April 2024.

Source: San Mateo County records, as of August 6, 2026

Owner of Record	Company Name on File
Mailing Address	860 HILLVIEW CT, 230, MILPITAS, CA 95035-4566
Owner Type	Company
Vesting	Limited Liability Company

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Apr 19, 2024	Grant Deed, Transfer LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY
Mar 4, 2021	Grant Deed, Transfer OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY
Jan 21, 2021	Affidavit of Death, Transfer ATTORNEY ONLY
Jan 21, 2021	Quit Claim Deed, Transfer ATTORNEY ONLY
Jan 21, 2021	Correction Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Apr 19, 2024 · Amount on File
Deed Sale	Apr 19, 2024 · Amount on File
Prior Sale	Mar 4, 2021 · Amount on File
Deed Document Number	202420161
Transfer Doc	0000010092
Record Updated	Sep 20, 2026

April 2024: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Apr 19, 2024
Property Address	89 ALEJANDRA AVE, ATHERTON, CA 94027-4106
Document Number	0000020161
Map Reference	MB D PG 47
Instrument Date	Apr 8, 2024
Instrument	2024-020161
Transaction Type	Transfer
Record Updated	May 10, 2024
Title Company	LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY

Transaction

Amount	Amount on Record
Tax	$9,625.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	89 ALEJANDRA AVE, ATHERTON, CA 94027-4106

March 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Mar 4, 2021
Property Address	89 ALEJANDRA AVE, ATHERTON, CA 94027-4106
Document Number	0000035514
Map Reference	MB D PG 47
Instrument Date	Feb 26, 2021
Instrument	2021-035514
Transaction Type	Transfer
Record Updated	Aug 9, 2021
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount on Record
Tax	$13,200.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	PO BOX 2548, SAN FRANCISCO, CA 94126-2548

January 2021: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	SAN MATEO CA
Recording Date	Jan 21, 2021
Property Address	89 ALEJANDRA AVE, ATHERTON, CA 94027-4106
Document Number	0000010092
Instrument Date	Jan 20, 2021
Instrument	10092
Transaction Type	Transfer
Record Updated	Feb 22, 2021
Title Company	ATTORNEY ONLY

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	89 ALEJANDRA AVE ATHERTON CA 940274106, ATHERTON, CA 94027-4106

January 2021: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jan 21, 2021
Property Address	89 ALEJANDRA AVE, ATHERTON, CA 94027-4106
Document Number	0000010098
Instrument Date	Jan 20, 2021
Instrument	10098
Transaction Type	Transfer
Record Updated	Feb 22, 2021
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	Sole Owner
Address	89 ALEJANDRA AVE ATHERTON CA 940274106, ATHERTON, CA 94027-4106

January 2021: Correction Deed, Transfer

Document Type	Correction Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jan 21, 2021
Property Address	89 ALEJANDRA AVE, ATHERTON, CA 94027-4106
Document Number	0000010097
Instrument Date	Jan 20, 2021
Instrument	10097
Transaction Type	Transfer
Record Updated	Jun 11, 2021
Title Company	ATTORNEY ONLY

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	89 ALEJANDRA AVE ATHERTON CA 940274106, ATHERTON, CA 94027-4106

Tax Assessment & Valuation

The 2025 property tax bill for 89 Alejandra Ave was $100,411, down 28.1% from the year before.

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
2026		$9,103,500 (+2%) Land $9,103,500
2025	$100,411.00 (-28.1%)	$8,925,000 Land $8,925,000
2024	$139,654.00 (+1.9%)
2023	$137,050.00 (+1.58%)	$12,380,760 Land $12,380,760
2022	$134,924.00

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

Flood

FEMA maps place 89 Alejandra Ave in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 1998.

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
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

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

Wildfire risk around 89 Alejandra Ave is low, with less than a 0.01% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

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 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 253 locations within half a mile, as of December 31, 2025

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

May also be available: GeoLinks, Race Communications, Sonic Telecom.

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