237 Mapache Dr, Portola Valley, CA 94028 Property Records

San Mateo County property record for 237 Mapache Dr, Portola Valley, CA 94028

Property Summary

Property Type	Single Family Home
Details	4 bd · 4 ba · 5,206 sqft · built 1974
Lot Size	3.32 acres (145,050 sqft)
Owner	2 Individual Names on Record
Last Sale	$6,800,000 (Sep 2024)
Tax Bill	$74,351 (2025)
Deeds & Mortgages	Sep 2023 Transfer Jan 2023 Transfer + 7 more
Flood Zone	Zone AE (high risk)
APN	`077-042-020`

Property Details

APN / Parcel Number

Primary APN	`077-042-020`

Interior

Bedrooms	4 Beds
Full Baths	4 Baths
Total Rooms	10 Rooms
Stories	1 Story
Building Area	5,206 sqft Living Area
1st Floor Area	4,937 sqft
Family Room	Family Room

Exterior

Year Built	Built 1974
Effective Year Built	Effective 1974
Lot Area	145,050 sqft
Garage Area	900 sqft
Parking Spaces	4 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	237 MAPACHE DR
City	PORTOLA VALLEY
State	CA
Zip	94028-7354
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1002A
Legal Description	LOT 172 WESTRIDGE SUBDIVISION NO 8 RSM 52/8 9 PORTOLA VALLEYSCHOOL DIST
Legal Subdivision	PORTOLA VALLEY
Legal Lot Number	172
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	3
Census Block	3005
Census Tract	613200

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 Individual Names on Record
Mailing Address	237 MAPACHE DR, PORTOLA VALLEY, CA 94028-7354
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Sep 19, 2023	Affidavit of Death of Joint Tenant, Transfer LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY
Jan 24, 2023	Intrafamily Transfer, Transfer
Jun 8, 2022	Intrafamily Transfer, Transfer · Conventional Mortgage EAST WEST BANK
Aug 12, 2019	Correction Deed, Transfer OLD REPUBLIC TITLE
Aug 12, 2019	Quit Claim Deed, Transfer OLD REPUBLIC TITLE CO
Aug 12, 2019	Correction Deed, Transfer OLD REPUBLIC TITLE
Mar 20, 2019	Quit Claim Deed, Transfer ATTORNEY ONLY
Sep 18, 2017	Quit Claim Deed, Transfer ATTORNEY ONLY
Jul 14, 2017	Grant Deed, Transfer CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 27, 2024 · Amount on Record
Deed Sale	Sep 27, 2024 · Amount on Record
Prior Sale	Jul 14, 2017 · Amount on Record
Deed Document Number	202451221
Prior Transfer Date	Sep 12, 2023
Prior Transfer Doc	0000045503
Record Updated	Sep 20, 2026

September 2023: Affidavit of Death of Joint Tenant, Transfer

Document Type	Affidavit of Death of Joint Tenant
Jurisdiction	SAN MATEO CA
Recording Date	Sep 19, 2023
Property Address	237 MAPACHE DR, PORTOLA VALLEY, CA 94028-7354
Document Number	0000045503
Map Reference	MB 52 PG 9&10
Instrument Date	Jun 5, 2023
Instrument	2023-045503
Transaction Type	Transfer
Record Updated	Oct 19, 2023
Title Company	LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY

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	237 MAPACHE DR, PORTOLA VALLEY, CA 94028-7354

January 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	Jan 24, 2023
Property Address	237 MAPACHE DR, PORTOLA VALLEY, CA 94028-7354
Document Number	0000003549
Map Reference	MB 52 PG 9&10
Instrument Date	Jan 3, 2023
Instrument	2023-003549
Transaction Type	Transfer
Record Updated	Feb 16, 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	Joint Tenants
Address	237 MAPACHE DR, PORTOLA VALLEY, CA 94028-7354

June 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	Jun 8, 2022
Property Address	237 MAPACHE DR, PORTOLA VALLEY, CA 94028-7354
Document Number	0000046559
Map Reference	MB 52 PG 9&10
Instrument Date	May 26, 2022
Instrument	2022-046559
Transaction Type	Transfer
Record Updated	Jun 23, 2022
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

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	237 MAPACHE DR, PORTOLA VALLEY, CA 94028-7354

Mortgage

Document Number	0000046560
Date	Jun 8, 2022
Instrument	2022-046560

Lender

Name	EAST WEST BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Jun 1, 2052

Interest

Rate Type	Adjustable Rate
Rate	3.37%
Type Change Date	Jun 1, 2027
Change Frequency	Annually
Min Rate At Change	3.25%
Max Rate At Change	5.37%
Index	1-Year CMT
Max Rate	9.37%

August 2019: Correction Deed, Transfer

Document Type	Correction Deed
Jurisdiction	SAN MATEO CA
Recording Date	Aug 12, 2019
Property Address	237 MAPACHE DR, PORTOLA VALLEY, CA 94028-7354
Document Number	0000063816
Instrument Date	Aug 6, 2019
Instrument	63816
Transaction Type	Transfer
Record Updated	May 11, 2021
Title Company	OLD REPUBLIC TITLE

Transaction

Tax	$0.00
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	237 MAPACHE DR PORTOLA VALLEY CA 940287354, PORTOLA VALLEY, CA 94028-7354

August 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Aug 12, 2019
Property Address	237 MAPACHE DR, PORTOLA VALLEY, CA 94028-7354
Document Number	0000063818
Map Reference	MB 52 PG 9&10
Instrument Date	Aug 5, 2019
Instrument	2019-063818
Transaction Type	Transfer
Record Updated	Aug 9, 2021
Title Company	OLD REPUBLIC TITLE CO

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	237 MAPACHE DR, PORTOLA VALLEY, CA 94028-7354

August 2019: Correction Deed, Transfer

Document Type	Correction Deed
Jurisdiction	SAN MATEO CA
Recording Date	Aug 12, 2019
Property Address	237 MAPACHE DR, PORTOLA VALLEY, CA 94028-7354
Document Number	0000063817
Instrument Date	Jun 27, 2019
Instrument	63817
Transaction Type	Transfer
Record Updated	May 11, 2021
Title Company	OLD REPUBLIC TITLE

Transaction

Tax	$0.00
Amount Accuracy	Full Value
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	237 MAPACHE DR PORTOLA VALLEY CA 940287354, PORTOLA VALLEY, CA 94028-7354

March 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Mar 20, 2019
Property Address	237 MAPACHE DR, PORTOLA VALLEY, CA 94028-7354
Document Number	0000019451
Instrument Date	Mar 18, 2019
Instrument	19451
Transaction Type	Transfer
Record Updated	Apr 9, 2019
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	237 MAPACHE DR PORTOLA VALLEY CA 940287354, PORTOLA VALLEY, CA 94028-7354

September 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Sep 18, 2017
Property Address	237 MAPACHE DR, PORTOLA VALLEY, CA 94028-7354
Document Number	0000081577
Instrument Date	Aug 21, 2017
Instrument	81577
Transaction Type	Transfer
Record Updated	Oct 18, 2017
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	237 MAPACHE DR PORTOLA VALLEY CA 940287354, PORTOLA VALLEY, CA 94028-7354

July 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jul 14, 2017
Property Address	237 MAPACHE DR, PORTOLA VALLEY, CA 94028-7354
Document Number	0000060269
Instrument Date	May 31, 2017
Instrument	60269
Transaction Type	Transfer
Record Updated	Jan 14, 2020
Title Company	CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transaction

Amount	Amount Recorded
Tax	$8,415.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Irrevocable Trust
Address	237 MAPACHE DR PORTOLA VALLEY CA 940287354, PORTOLA VALLEY, CA 94028-7354

Tax Assessment & Valuation

Source: San Mateo County assessment roll, as of July 15, 2026

Property Jurisdictions

Type	Name
State	California
County	San Mateo County
Municipality	Portola Valley Town
Elementary School District	Portola Valley 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		$7,082,000 (+4.15%) Land $5,125,500 Building $1,956,500
2025	$74,351.00 (-19.65%)	$6,800,000 (-18.72%) Land $5,025,000 Building $1,775,000
2023	$92,531.00 (+2.85%) Homeowner's exemption	$8,366,391 Land $6,179,099 Building $2,187,292	$8,265,600
2022	$89,963.00

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 AE high risk
100-Year Floodplain	Yes 1% annual chance
Floodway	No
Base Flood Elevation	Varies along the reach; see FIRM
Flood Insurance Requirement	Required federally backed loans
Nearby Flood Policies	5 in force
Nearby Flood Claims	2 (1983–2025)
Claims Outside the SFHA	1 of 2
Most Recent Claim	Feb 2025 · rainfall accumulation

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 62% of the US · lower than 77% of California
Wildfire Likelihood	0.05% 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 22 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Starlink Satellite	280 / 30

May also be available: AT&T, Cruzio, Etheric Networks.

Cell Coverage

5G (outdoors only) and 4G LTE

Nearby Properties on Mapache Dr

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