683 Harrow Ave, San Mateo, CA 94402 Property Records

San Mateo County property record for 683 Harrow Ave, San Mateo, CA 94402

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 1,190 sqft · built 1946
Lot Size	0.103 acres (4,500 sqft)
Owner	2 Trust Names on File
Last Sale	$600,000 (Apr 2004)
Tax Bill	$11,811 (2025)
Deeds & Mortgages	Jan 2020 Mortgage Feb 2021 Mortgage + 2 more
Flood Zone	Zone X (reduced by levee)
APN	`035-056-100`

Property Details

APN / Parcel Number

Primary APN	`035-056-100`

Interior

Bedrooms	3 Beds
Full Baths	1 Bath
Total Rooms	6 Rooms
Building Area	1,190 sqft Living Area
1st Floor Area	1,190 sqft
Family Room	Family Room

Exterior

Year Built	Built 1946
Effective Year Built	Effective 1946
Lot Area	4,500 sqft (0.103 acres)
Lot Dimensions	90 ft deep x 50 ft wide
Garage Area	230 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	683 HARROW AVE
City	SAN MATEO
State	CA
Zip	94402-1956
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOT 21 BLOCK 12 SUNNYBRAE MAP NO 3 RSM 26/11 12 13 CITY OF SAN MATEO
Legal Subdivision	SUNNYBRAE MAP NO 3
Legal Block	12
Legal Lot Number	21
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	4
Census Block	4004
Census Tract	607600

Owner

683 Harrow Ave is owner-occupied and held in a trust since September 2020.

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

Owner of Record	2 Trust Names on File
Mailing Address	683 HARROW AVE, SAN MATEO, CA 94402-1956
Occupancy	Owner Occupied
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
Jan 3, 2020	Deed of Trust, Mortgage · Conventional Mortgage OWNING CORPORATION
Feb 4, 2021	Deed of Trust, Mortgage · Conventional Mortgage OWNING CORPORATION
Oct 20, 2020	Quit Claim Deed, Transfer UNISOURCE
Oct 20, 2020	Intrafamily Transfer, Transfer · Conventional Mortgage NETWORK CAPITAL FUNDING CORP

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 16, 2004 · Amount on File
Deed Sale	Apr 16, 2004 · Amount on File
Prior Sale	Jul 9, 1999 · Amount on File
Deed Document Number	200472289
Last Transfer Date	Sep 26, 2020
Transfer Doc	0000113868
Record Updated	Oct 29, 2026

January 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	683 HARROW AVE, SAN MATEO, CA 94402-1956
Transaction Type	Mortgage
Record Updated	Aug 5, 2022
Title Company	ORANGE COAST TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000000519
Date	Jan 3, 2020
Instrument	2020-000519

Lender

Name	OWNING CORPORATION
Type	Non-Lending Institution
Address	ORANGE, CA 92868

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	180 Months
Due	Jan 1, 2035

February 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	683 HARROW AVE, SAN MATEO, CA 94402-1956
Transaction Type	Mortgage
Record Updated	Aug 5, 2022
Title Company	ORABGE COAST TITLE, ORANGE COAST TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	683 HARROW AVE, SAN MATEO, CA 94402-1956

Mortgage

Document Number	0000018277
Date	Feb 4, 2021
Instrument	2021-018277

Lender

Name	OWNING CORPORATION
Type	Non-Lending Institution
Address	ORANGE, CA 92868

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Mar 1, 2051

October 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Oct 20, 2020
Property Address	683 HARROW AVE, SAN MATEO, CA 94402-1956
Document Number	0000113870
Instrument Date	Sep 26, 2020
Instrument	113870
Transaction Type	Transfer
Record Updated	Nov 24, 2020
Title Company	UNISOURCE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	683 HARROW AVE SAN MATEO CA 944021956, SAN MATEO, CA 94402-1956

October 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	Oct 20, 2020
Property Address	683 HARROW AVE, SAN MATEO, CA 94402-1956
Document Number	0000113868
Map Reference	MB 26 PG 11-13
Instrument Date	Sep 26, 2020
Instrument	2020-113868
Transaction Type	Transfer
Record Updated	Aug 5, 2022
Title Company	UNISOURCE

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	Community Property with Right of Survivorship
Address	683 HARROW AVE, SAN MATEO, CA 94402-1956

Mortgage

Document Number	0000113869
Date	Oct 20, 2020
Instrument	2020-113869

Lender

Name	NETWORK CAPITAL FUNDING CORP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Oct 1, 2050

Tax Assessment & Valuation

The 2025 property tax bill for 683 Harrow Ave was $11,811 with a homeowner's exemption.

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	Assessed Market Value
2026		$870,122 (+2%) Land $435,061 Building $435,061
2025	$11,811.00 Homeowner's exemption	$853,062 Land $426,531 Building $426,531
2023	$11,087.00 (+1.21%) Homeowner's exemption	$819,938 Land $409,969 Building $409,969	$1,079,730
2022	$10,954.00

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 683 Harrow Ave in Zone X, where a levee reduces flood risk, though there have been 2 flood claims nearby since 2010.

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	4 in force
Nearby Flood Claims	2 (2010–2022)
Claims Outside the SFHA	1 of 2
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 683 Harrow Ave 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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