557 30th Ave, San Mateo, CA 94403 Property Records

San Mateo County property record for 557 30th Ave, San Mateo, CA 94403

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,720 sqft · built 1945
Lot Size	0.125 acres (5,443 sqft)
Owner	2 Individual Names on File
Last Sale	$391,000 (Jun 1997)
Tax Bill	$10,595 (2025)
Deeds & Mortgages	Sep 2017 Line of Credit Aug 2018 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`039-302-090`

Property Details

APN / Parcel Number

Primary APN	`039-302-090`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,720 sqft Living Area
1st Floor Area	1,110 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1945
Effective Year Built	Effective 1945
Architectural Style	Ranch
Exterior Material	Stucco
Construction Type	Frame
Roof Material	Composition Shingle
Lot Area	5,443 sqft (0.125 acres)
Lot Dimensions	109 ft deep x 50 ft wide
Garage Area	280 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	557 30TH AVE
City	SAN MATEO
State	CA
Zip	94403-3203
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOT 2 BLOCK 17 SAN MATEO TERRACE MAP NO 5 RSM 22/35 CITY OF SAN MATEO
Legal Subdivision	SAN MATEO TERRACE MAP NO 5
Legal Block	17
Legal Lot Number	2
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	3
Census Block	3000
Census Tract	607300

Owner

557 30th Ave is owned and occupied by two individuals who bought it in June 1997.

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

Owner of Record	2 Individual Names on File
Mailing Address	557 30TH AVE, SAN MATEO, CA 94403-3203
Occupancy	Owner Occupied
Owner Type	Individual

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
Sep 7, 2017	Deed of Trust, Mortgage · Line of Credit CITIBANK NA
Aug 8, 2018	Deed of Trust, Mortgage · Conventional Mortgage CITIBANK NA
Oct 4, 2019	Deed of Trust, Mortgage · Conventional Mortgage CITIBANK NA
Mar 5, 2020	Deed of Trust, Mortgage · Line of Credit CITIBANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 4, 1997 · Amount on File
Deed Sale	Jun 4, 1997 · Amount on File
Deed Document Number	199766044
Record Updated	Sep 20, 2026

September 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	557 30TH AVE, SAN MATEO, CA 94403-3203
Transaction Type	Mortgage
Record Updated	Oct 18, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000078479
Date	Sep 7, 2017
Instrument	2017-078479

Lender

Name	CITIBANK NA
Type	Bank
Address	SIOUX FALLS, SD 57104

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	360 Months
Due	Sep 6, 2047

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

August 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	557 30TH AVE, SAN MATEO, CA 94403-3203
Transaction Type	Mortgage
Record Updated	Oct 18, 2022
Title Company	TICOR TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000061912
Date	Aug 8, 2018
Instrument	2018-061912

Lender

Name	CITIBANK NA
Type	Bank
Address	LAKE SAINT LOUIS, MO 63367

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Sep 1, 2048

October 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	557 30TH AVE, SAN MATEO, CA 94403-3203
Transaction Type	Mortgage
Record Updated	Oct 18, 2022
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000082671
Date	Oct 4, 2019
Instrument	2019-082671

Lender

Name	CITIBANK NA
Type	Bank
Address	O FALLON, MO 63368

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	348 Months
Due	Oct 1, 2048

March 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	557 30TH AVE, SAN MATEO, CA 94403-3203
Transaction Type	Mortgage
Record Updated	Oct 18, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000020101
Date	Mar 5, 2020
Instrument	2020-020101

Lender

Name	CITIBANK NA
Type	Bank
Address	SIOUX FALLS, SD 57104

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	360 Months
Due	Mar 4, 2050

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

Tax Assessment & Valuation

The 2025 property tax bill for 557 30th Ave was $10,595 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		$735,088 (+2%) Land $324,768 Building $410,320
2025	$10,595.00 Homeowner's exemption	$720,675 Land $318,400 Building $402,275
2023	$10,575.00 (+4.91%) Homeowner's exemption	$692,693 Land $306,037 Building $386,656	$1,712,880
2022	$10,080.00

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

Flood

FEMA maps place 557 30th Ave in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 2009.

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	2 in force
Nearby Flood Claims	2 (2009–2017)
Claims Outside the SFHA	2 of 2
Most Recent Claim	Jan 2017 · Severe Winter Storms, Flooding, 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 557 30th 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 732 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 · Fiber in parts of the area	1,500 / 50

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

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