89 Irving Ave, Atherton, CA 94027 Property Records

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

Property Summary

Property Type	Single Family Home
Details	4 bd · 5 ba · 4,568 sqft · built 1963
Lot Size	0.921 acres (40,131 sqft)
Owner	2 Company Names on Record
Last Sale	$2,725,000 (Jul 2013)
Tax Bill	$52,979 (2025)
Deeds & Mortgages	Nov 2021 Transfer May 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`061-031-020`

Property Details

APN / Parcel Number

Primary APN	`061-031-020`

Interior

Bedrooms	4 Beds
Full Baths	5 Baths
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	4,568 sqft Living Area
1st Floor Area	1,820 sqft
2nd Floor Area	1,020 sqft
Family Room	Family Room
Study	Study

Exterior

Year Built	Built 1963
Effective Year Built	Effective 1963
Lot Area	40,131 sqft (0.921 acres)
Lot Dimensions	177 ft deep x 228 ft wide
Garage Area	570 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	89 IRVING AVE
City	ATHERTON
State	CA
Zip	94027-2007
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1001A
Legal Description	LOT 22 BLOCK 13 LINDENWOOD MAP NO 9 RSM 41/16 TOWN OF ATHERTON
Legal Subdivision	LINDENWOOD MAP NO 9
Legal Block	13
Legal Lot Number	22
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	3
Census Block	3000
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	89 IRVING AVE, ATHERTON, CA 94027-2007
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Nov 16, 2021	Intrafamily Transfer, Transfer
May 14, 2020	Deed of Trust, Mortgage PROVIDENT CU

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 12, 2013 · Amount on Record
Deed Sale	Jul 12, 2013 · Amount on Record
Deed Document Number	2013102778
Last Transfer Date	Nov 15, 2021
Transfer Doc	0000158978
Record Updated	Sep 20, 2026

November 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	Nov 16, 2021
Property Address	89 IRVING AVE, ATHERTON, CA 94027-2007
Document Number	0000158978
Map Reference	MB 41 PG 16
Instrument Date	Nov 15, 2021
Instrument	2021-158978
Transaction Type	Transfer
Record Updated	Jun 7, 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
Relationship	Family Trust
Address	89 IRVING AVE, ATHERTON, CA 94027-2007

May 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	89 IRVING AVE, ATHERTON, CA 94027-2007
Document Number	0000047370
Instrument Date	May 14, 2020
Transaction Type	Mortgage
Record Updated	Jun 23, 2020
Title Company	NOT AVAILABLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	89 IRVING AVE ATHERTON CA 940272007, ATHERTON, CA 94027-2007

Mortgage

Document Number	0000047370
Date	May 26, 2020
Instrument	47370

Lender

Name	PROVIDENT CU
Type	Credit Union
Address	303 TWIN DOLPHIN DR, REDWOOD CITY, CA 94065-1497

Agreement

Amount	Amount Recorded
Term	360 Months
Due	May 25, 2050

Interest

Rate Type	Adjustable Rate
Rate	2.75%

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		$4,668,755 (+2%) Land $3,032,168 Building $1,636,587
2025	$52,979.00 (+4.87%)	$4,577,212 (+4.04%) Land $2,972,714 Building $1,604,498
2023	$50,517.00 (+2.44%)	$4,399,476 Land $2,857,281 Building $1,542,195	$6,485,220
2022	$49,315.00

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 97% of the US · lower than 97.8% of California
Wildfire Likelihood	Under 0.01% annual chance
Exposure	Direct burnable vegetation

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 299 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 · Fixed Wireless in parts of the area	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, Sonic Telecom.

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