1109 Haddon Dr, San Mateo, CA 94402 Property Records

San Mateo County property record for 1109 Haddon Dr, San Mateo, CA 94402

Property Summary

Property Type	Multi-Family Dwellings
Details	10 bd · 8 ba · 7,960 sqft · built 1958
Lot Size	0.201 acres (8,742 sqft)
Owner	2 Trust Names on File
Last Sale	$6,750,000 (Nov 2019)
Tax Bill	$54,966 (2025)
Deeds & Mortgages	Nov 2019 Sale Oct 2018 Sale & Mortgage
Flood Zone	Zone X (reduced by levee)
APN	`035-087-270`

Property Details

APN / Parcel Number

Primary APN	`035-087-270`

Interior

Bedrooms	10 Beds
Full Baths	8 Baths
Total Rooms	26 Rooms
Units	8 Units
Stories	2 Stories
Building Area	7,960 sqft Living Area

Exterior

Year Built	Built 1958
Effective Year Built	Effective 1958
Architectural Style	Multi-Family
Lot Area	8,742 sqft (0.201 acres)
Parking Spaces	8 Parking Spaces

Location & Zoning

Street Address	1109 HADDON DR
City	SAN MATEO
State	CA
Zip	94402-2591
Property Category	Residential
Property Type	Residential > Multi-Unit > Multi-Family Dwellings
Legal Description	BEING LOT 11 & ADJ PTN OF LOT 14 BLK 27 SUNNYBRAE MAP NO 3 RSM 26/11 13
Legal Subdivision	SUNNYBRAE MAP NO 3
Legal Block	27
Legal Lot Number	11,14
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	1
Census Block	1000
Census Tract	607600

Owner

1109 Haddon Dr, a residential property, is held in a trust since November 2019.

Source: San Mateo County records, as of August 31, 2026

Owner of Record	2 Trust Names on File
Mailing Address	1020 CORPORATION WAY, 100, PALO ALTO, CA 94303-4317
Owner Type	Company
Vesting	Trust

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
Nov 26, 2019	Grant Deed, Transfer FIRST AMERICAN TITLE, FIRST AMERICAN TITLE INS CO NA
Oct 23, 2018	Grant Deed, Transfer · Commercial Mortgage FIRST REPUBLIC BANK

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Nov 26, 2019 · Amount on File
Deed Sale	Nov 26, 2019 · Amount on File
Prior Sale	Oct 23, 2018 · Amount on File
Deed Document Number	2019100015
Prior Transfer Date	Aug 18, 1994
Prior Transfer Doc	0000137762
Record Updated	Oct 29, 2026

November 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Nov 26, 2019
Property Address	1109 HADDON DR, SAN MATEO, CA 94402-2591
Document Number	0000100015
Instrument Date	Nov 20, 2019
Instrument	100015
Transaction Type	Transfer
Record Updated	Dec 16, 2019
Title Company	FIRST AMERICAN TITLE, FIRST AMERICAN TITLE INS CO NA

Transaction

Amount	Amount on Record
Tax	$7,425.00
Amount Accuracy	Full Value
Additional	Arm's Length Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	1020 CORPORATION WAY #100 PALO ALTO CA 943034317, 100, PALO ALTO, CA 94303-4317

October 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Oct 23, 2018
Property Address	1109 HADDON DR, SAN MATEO, CA 94402-2591
Document Number	0000082154
Map Reference	MB26 PG11-13
Instrument Date	Aug 22, 2018
Instrument	2018-082154
Transaction Type	Transfer
Record Updated	Jul 25, 2022
Title Company	FIRST AMERICAN TITLE INS CO

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name
Address	00000

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Family Trust
Address	855 EL CAMINO REAL # 13A185, 13A185, PALO ALTO, CA 94301-2305

Mortgage

Document Number	0000082155
Date	Oct 23, 2018
Instrument	2018-082155

Lender

Name	FIRST REPUBLIC BANK
Type	Bank

Agreement

Type	Commercial Mortgage
Amount	Amount on Record

Tax Assessment & Valuation

The 2025 property tax bill for 1109 Haddon Dr was $54,966.

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

Property Jurisdictions

Type	Name
State	California
County	San Mateo County
Municipality	San Mateo City
Elementary School District	San Mateo-Foster 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		$3,848,537 (+2%) Land $2,509,917 Building $1,338,620
2025	$54,966.00	$3,773,076 Land $2,460,703 Building $1,312,373
2023	$50,284.00 (-0.47%)	$3,626,564 Land $2,365,151 Building $1,261,413
2022	$50,522.00

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

Flood

FEMA maps place 1109 Haddon Dr in Zone X, where a levee reduces flood risk, though there have been 1 flood claim nearby since 2022.

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 reduced by levee · depends on levee performance
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	8 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

The area around 1109 Haddon Dr has no burnable land within ember reach, so its wildfire risk is not rated.

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

Wildfire Risk	Not rated no burnable land within 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 - SAN MATEO private · serves 103,536 people · EPA ID CA4110008
Water Source	Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM
Last State Inspection	Mar 2025
Lead	4 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 797 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · Fixed Wireless, DSL in parts of the area	5,000 / 5,000
Xfinity Cable · Fiber in parts of the area	2,000 / 250
Astound Broadband Cable · Fiber in parts of the area	1,500 / 50
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks, Sonic Telecom, Unwired, Verizon.

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