1900 Willow Rd, Hillsborough (Burlingame), CA 94010 Property Records

San Mateo County property record for 1900 Willow Rd, Hillsborough, CA 94010

Property Summary

Property Type	Single Family Home
Details	5 bd · 7 ba · 4,854 sqft · built 2017
Lot Size	0.644 acres (28,059 sqft)
Owner	2 Company Names on Record
Last Sale	$11,250,000 (Sep 2022)
Tax Bill	$136,900 (2025)
Deeds & Mortgages	Sep 2022 Sale & Mortgage Feb 2018 Sale + 1 more
Flood Zone	Zone X (minimal risk)
APN	`028-110-010`

Property Details

APN / Parcel Number

Primary APN	`028-110-010`

Interior

Bedrooms	5 Beds
Full Baths	7 Baths
Total Rooms	10 Rooms
Stories	2 Stories
Building Area	4,854 sqft Living Area
1st Floor Area	4,501 sqft
2nd Floor Area	353 sqft
Family Room	Family Room
Study	Study
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 2017
Effective Year Built	Effective 2017
Lot Area	28,059 sqft (0.644 acres)
Garage Area	519 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	1900 WILLOW RD
City	HILLSBOROUGH
State	CA
Zip	94010-6358
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10025
Legal Description	ON NWLY COR OF PRIVATE RD & WILLOW RD PTN OF LOT 7 MAP OF IRWIN PROPERTY RSM 11/52 53 TOWN OF HILLSBOROUGH
Legal Subdivision	MAP OF IRWIN PROPERTY
Legal Lot Number	7
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	1
Census Block	1015
Census Tract	605600

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	1900 WILLOW RD, HILLSBOROUGH, CA 94010-6358
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Sep 6, 2022	Grant Deed, Transfer · Conventional Mortgage FIRST REPUBLIC BANK
Feb 16, 2018	Grant Deed, Transfer LAWYERS TITLE
May 3, 2017	Loan Modification, Mortgage · Conventional Mortgage UNITED AMERICAN BK

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 6, 2022 · Amount on Record
Deed Sale	Sep 6, 2022 · Amount on Record
Prior Sale	Feb 16, 2018 · Amount on Record
Deed Document Number	202265326
Prior Transfer Date	Jul 7, 2016
Prior Transfer Doc	0000075890
Record Updated	Oct 29, 2026

September 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Sep 6, 2022
Property Address	1900 WILLOW RD, HILLSBOROUGH, CA 94010-6358
Document Number	0000065326
Map Reference	MB 11 PG 52&53
Instrument Date	Aug 29, 2022
Instrument	2022-065326
Transaction Type	Transfer
Record Updated	Jun 7, 2023
Title Company	LAWYERS TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$12,375.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	1900 WILLOW RD, HILLSBOROUGH, CA 94010-6358

Mortgage

Document Number	0000065327
Date	Sep 6, 2022
Instrument	2022-065327

Lender

Name	FIRST REPUBLIC BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Oct 1, 2052

Interest

Rate Type	Adjustable Rate
Rate	3.5%
Type Change Date	Oct 1, 2029
Change Frequency	Annually
Min Rate At Change	2.95%
Max Rate At Change	10.9%
Index	1-Year CMT
Max Rate	10.9%

February 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Feb 16, 2018
Property Address	1900 WILLOW RD, HILLSBOROUGH, CA 94010-6358
Document Number	0000011034
Instrument Date	Feb 8, 2018
Instrument	11034
Transaction Type	Transfer
Record Updated	Mar 6, 2018
Title Company	LAWYERS TITLE

Transaction

Amount	Amount Recorded
Tax	$8,690.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	1900 WILLOW RD HILLSBOROUGH CA 940106358, HILLSBOROUGH, CA 94010-6358

May 2017: Loan Modification, Mortgage

Document Type	Loan Modification
Jurisdiction	SAN MATEO CA
Property Address	1900 WILLOW RD, HILLSBOROUGH, CA 94010-6358
Document Number	0000039281
Instrument Date	May 3, 2017
Transaction Type	Mortgage
Record Updated	May 22, 2017

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	1900 WILLOW RD HILLSBOROUGH CA 940106358, HILLSBOROUGH, CA 94010-6358

Mortgage

Document Number	0000039281
Date	May 5, 2017
Instrument	39281

Lender

Name	UNITED AMERICAN BK
Type	Bank
Address	SAN MATEO, CA 94401

Agreement

Type	Conventional 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
County	San Mateo County
Municipality	Hillsborough Town
Elementary School District	Hillsborough City Elementary School District (KG - 08)
Secondary School District	San Mateo Union High School District (09 - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$11,938,589 (+2%) Land $7,057,033 Building $4,881,556
2025	$136,900.00 (+3.6%) Homeowner's exemption	$11,704,500 (+4.04%) Land $6,918,660 Building $4,785,840
2023	$132,145.00 (+34.11%) Homeowner's exemption	$11,250,000 Land $6,650,000 Building $4,600,000
2022	$98,536.00

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
Nearby Flood Policies	4 in force
Nearby Flood Claims	3 (1998–2023)
Claims Outside the SFHA	3 of 3
Most Recent Claim	Jan 2023 · 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 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	TOWN OF HILLSBOROUGH serves 11,766 people · EPA ID CA4110016
Water Source	Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM
Last State Inspection	Mar 2026
Lead	Under 1 ppb (2023–2025) 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 189 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250

May also be available: AT&T, Etheric Networks, Sonic Telecom, Verizon.

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