249 23rd Ave, San Mateo, CA 94403 Property Records

San Mateo County property record for 249 23rd Ave, San Mateo, CA 94403

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,800 sqft · built 1930
Lot Size	0.153 acres (6,650 sqft)
Owner	Individual Name on Record
Last Sale	$1,015,000 (Nov 2004)
Tax Bill	$17,829 (2025)
Deeds & Mortgages	May 2022 Mortgage Mar 2020 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`039-142-100`

Property Details

APN / Parcel Number

Primary APN	`039-142-100`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,800 sqft Living Area
1st Floor Area	1,360 sqft
Family Room	Family Room

Exterior

Year Built	Built 1930
Effective Year Built	Effective 1930
Lot Area	6,650 sqft (0.153 acres)
Lot Dimensions	133 ft deep x 50 ft wide
Garage Area	320 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	249 23RD AVE
City	SAN MATEO
State	CA
Zip	94403-2238
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	WLY 1/2 OF LOT 5 BLOCK 6 SAN MATEO VILLA PARK RSM 12/50 51 CITY OF SAN MATEO
Legal Subdivision	SAN MATEO VILLA PARK
Legal Block	6
Legal Lot Number	5
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	2
Census Block	2002
Census Tract	607400

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	Individual Name on Record
Mailing Address	249 23RD AVE, SAN MATEO, CA 94403-2238
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
May 4, 2022	Intrafamily Transfer, Transfer · Conventional Mortgage ARC HOME LLC
Mar 30, 2020	Intrafamily Transfer, Transfer · Line of Credit FIRST REPUBLIC BANK

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Nov 16, 2004 · Amount on Record
Deed Sale	Nov 16, 2004 · Amount on Record
Prior Sale	Dec 24, 1998 · Amount on Record
Deed Document Number	2004225623
Last Transfer Date	Apr 29, 2022
Transfer Doc	0000037322
Record Updated	Sep 20, 2026

May 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	May 4, 2022
Property Address	249 23RD AVE, SAN MATEO, CA 94403-2238
Document Number	0000037322
Map Reference	MB 12 PG 50&51
Instrument Date	Apr 29, 2022
Instrument	2022-037322
Transaction Type	Transfer
Record Updated	May 17, 2022
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN 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	249 23RD AVE, SAN MATEO, CA 94403-2238

Mortgage

Document Number	0000037323
Date	May 4, 2022
Instrument	2022-037323

Lender

Name	ARC HOME LLC
Type	Mortgage Company

Agreement

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

March 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	Mar 30, 2020
Property Address	249 23RD AVE, SAN MATEO, CA 94403-2238
Document Number	0000029145
Map Reference	MB 12 PG 50&51
Instrument Date	Feb 14, 2020
Instrument	2020-029145
Transaction Type	Transfer
Record Updated	Aug 9, 2021
Title Company	FIRST AMERICAN 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	249 23RD AVE, SAN MATEO, CA 94403-2238

Mortgage

Document Number	0000029146
Date	Mar 30, 2020
Instrument	2020-029146

Lender

Name	FIRST REPUBLIC BANK
Type	Bank

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	300 Months
Due	Mar 26, 2045

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

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	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		$1,443,110 (+2%) Land $721,555 Building $721,555
2025	$17,829.00 (+1.95%) Homeowner's exemption	$1,414,814 (+4.04%) Land $707,407 Building $707,407
2023	$17,488.00 (-0.81%) Homeowner's exemption	$1,359,878 Land $679,939 Building $679,939	$2,022,930
2022	$17,630.00

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
Nearby Flood Policies	1 in force

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	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 799 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Sonic Telecom Fiber	10,000 / 10,000
AT&T Fiber · Fixed Wireless, DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Astound Broadband Cable	1,500 / 50

May also be available: Etheric Networks, GeoLinks, T-Mobile, Verizon.

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