521 E 5th Ave, San Mateo, CA 94402 Property Records

San Mateo County property record for 521 E 5th Ave, San Mateo, CA 94402

Property Summary

Property Type	Public School (Administration, Campus, Dorms, Instruction)
Lot Size	0.246 acres (10,720 sqft)
Owner	Company Name on Record
Last Sale	$1,525,000 (May 2013)
Tax Bill	$31,356 (2025)
Deeds & Mortgages	Sep 2018 Line of Credit Sep 2018 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`034-186-090`

Property Details

APN / Parcel Number

Primary APN	`034-186-090`

Exterior

Lot Area	10,720 sqft (0.246 acres)

Location & Zoning

Street Address	521 E 5TH AVE
City	SAN MATEO
State	CA
Zip	94402-1302
Property Category	Public Works
Property Type	Public Works > Public School (Administration, Campus, Dorms, Instruction)
Local Zoning Code	CH00C4
Legal Description	HAV 52 FT X 160 FT FRONT AT COR OF S DELAWARE ST & FIFTH AVE PTN OF LOTS 1 7 & 8 BLK 20 TOWN OF SAN MATEO RSM 1/45
Legal Subdivision	TOWN OF SAN MATEO
Legal Block	20
Legal Lot Number	1
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	2
Census Block	2008
Census Tract	606300

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	Company Name on Record
Mailing Address	244 9TH ST, SAN FRANCISCO, CA 94103-3807
Owner Type	Company
Vesting	Company

Deeds, Mortgages & Sale History

Date	Document
Sep 21, 2018	Deed of Trust, Mortgage · Line of Credit BANK OF THE ORIENT
Sep 21, 2018	Deed of Trust, Mortgage BANK OF THE ORIENT
Sep 21, 2018	Deed of Trust, Mortgage BANK OF THE ORIENT
Sep 21, 2018	Deed of Trust, Mortgage BANK OF THE ORIENT

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	May 23, 2013 · Amount on Record
Deed Sale	May 23, 2013 · Amount on Record
Prior Sale	Mar 30, 2000 · Amount on Record
Deed Document Number	201377927
Prior Transfer Date	Mar 24, 2000
Prior Transfer Doc	0000036759
Record Updated	Oct 29, 2026

September 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	521 E 5TH AVE, SAN MATEO, CA 94402-1302
Document Number	0000075646
Instrument Date	Sep 21, 2018
Transaction Type	Mortgage
Record Updated	Nov 22, 2018
Title Company	CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	244 9TH ST SAN FRANCISCO CA 941033807, SAN FRANCISCO, CA 94103-3807

Mortgage

Document Number	0000075646
Date	Sep 27, 2018
Instrument	75646

Lender

Name	BANK OF THE ORIENT
Type	Bank
Address	SAN FRANCISCO, CA 94111

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate

September 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	521 E 5TH AVE, SAN MATEO, CA 94402-1302
Document Number	0000075648
Instrument Date	Sep 21, 2018
Transaction Type	Mortgage
Record Updated	Nov 22, 2018
Title Company	CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	244 9TH ST SAN FRANCISCO CA 941033807, SAN FRANCISCO, CA 94103-3807

Mortgage

Document Number	0000075648
Date	Sep 27, 2018
Instrument	75648

Lender

Name	BANK OF THE ORIENT
Type	Bank
Address	SAN FRANCISCO, CA 94111

Agreement

Amount	Amount Recorded

September 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	521 E 5TH AVE, SAN MATEO, CA 94402-1302
Document Number	0000075645
Instrument Date	Sep 21, 2018
Transaction Type	Mortgage
Record Updated	Oct 19, 2018
Title Company	CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	244 9TH ST SAN FRANCISCO CA 941033807, SAN FRANCISCO, CA 94103-3807

Mortgage

Document Number	0000075645
Date	Sep 27, 2018
Instrument	75645

Lender

Name	BANK OF THE ORIENT
Type	Bank
Address	100 PINE ST # 600, SAN FRANCISCO, CA 94111-5108

Agreement

Amount	Amount Recorded

September 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	521 E 5TH AVE, SAN MATEO, CA 94402-1302
Document Number	0000075643
Instrument Date	Sep 21, 2018
Transaction Type	Mortgage
Record Updated	Nov 22, 2018
Title Company	CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	244 9TH ST SAN FRANCISCO CA 941033807, SAN FRANCISCO, CA 94103-3807

Mortgage

Document Number	0000075643
Date	Sep 27, 2018
Instrument	75643

Lender

Name	BANK OF THE ORIENT
Type	Bank
Address	100 PINE ST # 600, SAN FRANCISCO, CA 94111-5108

Agreement

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	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		$2,577,432 (+2%) Land $1,683,109 Building $894,323
2025	$31,356.00 (+6.58%)	$2,526,895 (+4.04%) Land $1,650,107 Building $876,788
2023	$29,421.00 (+1.99%)	$2,428,775 Land $1,586,032 Building $842,743
2022	$28,846.00

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

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; 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 915 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	2,000 / 250
Astound Broadband Cable	1,500 / 50
Sonic Telecom Fiber	1,000 / 1,000
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks.

Nearby Properties on E 5th Ave

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures