521 Superior Ave, San Leandro, CA 94577 Property Records

Alameda County property record for 521 Superior Ave, San Leandro, CA 94577

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 1,257 sqft · built 1927
Lot Size	0.119 acres (5,200 sqft)
Owner	Company Name on Record
Last Sale	$390,000 (May 2010)
Tax Bill	$7,134 (2025)
Deeds & Mortgages	Oct 2023 Line of Credit Jan 2017 Line of Credit + 1 more
Flood Zone	Zone X (minimal risk)
APN	`76-329-5`

Property Details

APN / Parcel Number

Primary APN	`76-329-5`
Alternative APN	`076-0329-005-00`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	5 Rooms
Stories	1 Story
Building Area	1,257 sqft Living Area

Exterior

Year Built	Built 1927
Effective Year Built	Effective 1927
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	5,200 sqft (0.119 acres)

Location & Zoning

Street Address	521 SUPERIOR AVE
City	SAN LEANDRO
State	CA
Zip	94577-3051
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00005 BLK: AR: 0076 PAGE: 0329
Legal Subdivision	CHERRY CITY
Legal Block	2
Legal Lot Number	18
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	2
Census Block	2004
Census Tract	432100

Owner

Source: Alameda County records, as of August 5, 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	521 SUPERIOR AVE, SAN LEANDRO, CA 94577-3051
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Oct 11, 2023	Deed of Trust, Mortgage · Line of Credit US BANK NA
Jan 10, 2017	Deed of Trust, Mortgage · Line of Credit US BANK NA
Aug 25, 2021	Deed of Trust, Mortgage · Conventional Mortgage CALIBER HOME LOANS INC

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	May 28, 2010 · Amount on Record
Deed Sale	May 28, 2010 · Amount on Record
Deed Document Number	2010151808
Last Transfer Date	Jan 13, 2011
Transfer Doc	0000026132
Record Updated	Oct 29, 2026

October 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	521 SUPERIOR AVE, SAN LEANDRO, CA 94577-3051
Transaction Type	Mortgage
Record Updated	Nov 16, 2023
Title Company	RADIAN SETTLEMENT SERVICES INC, RADIAN SETTLEMENT SERVICES

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	521 SUPERIOR AVE, SAN LEANDRO, CA 94577-3051

Mortgage

Document Number	0000118919
Date	Oct 11, 2023
Instrument	2023118919

Lender

Name	US BANK NA
Type	Bank
Address	CINCINNATI, OH 45202

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	359 Months
Due	Sep 28, 2053

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

January 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	521 SUPERIOR AVE, SAN LEANDRO, CA 94577-3051
Transaction Type	Mortgage
Record Updated	Aug 22, 2022
Title Company	SOUTHWEST FINANCIAL

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000007530
Date	Jan 10, 2017
Instrument	2017007530

Lender

Name	US BANK NA
Type	Bank
Address	CINCINNATI, OH 45202

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	359 Months
Due	Dec 6, 2046

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	521 SUPERIOR AVE, SAN LEANDRO, CA 94577-3051
Transaction Type	Mortgage
Record Updated	Aug 22, 2022
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	521 SUPERIOR AVE, SAN LEANDRO, CA 94577-3051

Mortgage

Document Number	0000288518
Date	Aug 25, 2021
Instrument	2021288518

Lender

Name	CALIBER HOME LOANS INC
Type	Mortgage Company
Address	SEBASTOPOL, CA 95472

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Sep 1, 2051

Tax Assessment & Valuation

Source: Alameda County assessment roll, as of August 5, 2026

Property Jurisdictions

Type	Name
State	California
County	Alameda County
Municipality	San Leandro City
Unified School District	San Leandro Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$506,450 (+0.61%) Land $154,035 Building $359,415
2025	$7,134.00 (+4.87%) Homeowner's exemption	$503,384 (+4.04%) Land $151,015 Building $352,369
2023	$6,803.00 Homeowner's exemption	$483,841 Land $145,152 Building $338,689	$825,120

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 May 25, 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
Community Rating System	Class 8 (10% premium discount)
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	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.03% annual chance
Exposure	Indirect 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	EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005
Water Source	Surface water
Last State Inspection	Dec 2021
Lead	Under 1 ppb (2022–2024) 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. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 801 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	5,000 / 5,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20

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

Nearby Properties on Superior Ave

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

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