18 Parker Ave, Atherton, CA 94027 Property Records

San Mateo County property record for 18 Parker Ave, Atherton, CA 94027

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,440 sqft · built 1952
Lot Size	0.179 acres (7,800 sqft)
Owner	Individual Name on File
Last Sale	$3,300,000 (Nov 2022)
Tax Bill	$39,024 (2025)
Deeds & Mortgages	Nov 2022 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`070-022-030`

Property Details

APN / Parcel Number

Primary APN	`070-022-030`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,440 sqft Living Area
1st Floor Area	1,440 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1952
Effective Year Built	Effective 1952
Lot Area	7,800 sqft (0.179 acres)
Lot Dimensions	130 ft deep x 60 ft wide
Garage Area	400 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	18 PARKER AVE
City	ATHERTON
State	CA
Zip	94027-5416
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1001A
Legal Description	LOT 10 UNIVERSITY VILLA SUB NO 1 RSM 3/47
Legal Subdivision	UNIVERSITY VILLA SUB NO 1
Legal Lot Number	10
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	3
Census Block	3000
Census Tract	611400

Owner

Source: San Mateo County records, as of July 15, 2026

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

Owner of Record	Individual Name on File
Mailing Address	18 PARKER AVE, ATHERTON, CA 94027-5416
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Nov 4, 2022 · Amount on File
Deed Sale	Nov 4, 2022 · Amount on File
Deed Document Number	202277405
Prior Transfer Date	Oct 28, 2022
Prior Transfer Doc	0000077404
Record Updated	Sep 20, 2026

November 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Nov 4, 2022
Property Address	18 PARKER AVE, ATHERTON, CA 94027-5416
Document Number	0000077405
Map Reference	MB C PG 13
Instrument Date	Oct 24, 2022
Instrument	2022-077405
Transaction Type	Transfer
Record Updated	Nov 29, 2022
Title Company	LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$3,630.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	18 PARKER AVE, ATHERTON, CA 94027-5416

Mortgage

Document Number	0000077406
Date	Nov 4, 2022
Instrument	2022-077406

Lender

Name	PNC BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Dec 1, 2052

Interest

Rate Type	Adjustable Rate
Rate	5.12%
Type Change Date	Dec 1, 2029
Change Frequency	6 Months
Min Rate At Change	3%
Max Rate At Change	10.1%
Index	Other
Margin	3
Max Rate	10.1%

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	Assessed Market Value
2026		$3,501,986 (+2%) Land $3,342,805 Building $159,181
2025	$39,024.00 (+2.87%)	$3,433,320 (+4.04%) Land $3,277,260 Building $156,060
2023	$37,935.00 (+1,133.26%)	$3,300,000 Land $3,150,000 Building $150,000	$2,863,890
2022	$3,076.00

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
Flood Insurance Cost	Premium on File 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 98% of the US · lower than 98.4% 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 601 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · Fixed Wireless in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: Race Communications.

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