20445 Stanton Ave, Castro Valley, CA 94546 Property Records

Alameda County property record for 20445 Stanton Ave, Castro Valley, CA 94546

Property Summary

Property Type	Duplex
Details	4 bd · 2 ba · 1,758 sqft · built 1957
Lot Size	0.115 acres (5,000 sqft)
Owner	2 Individual Names on Record
Last Sale	$845,000 (Dec 2019)
Tax Bill	$12,507 (2025)
Deeds & Mortgages	May 2021 Mortgage Dec 2019 Sale & Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`84A-216-22`

Property Details

APN / Parcel Number

Primary APN	`84A-216-22`
Alternative APN	`084A-0216-022-00`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	8 Rooms
Units	2 Units
Stories	1 Story
Building Area	1,758 sqft Living Area

Exterior

Year Built	Built 1957
Effective Year Built	Effective 1957
Construction Type	Wood
Lot Area	5,000 sqft (0.115 acres)
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	20445 STANTON AVE
City	CASTRO VALLEY
State	CA
Zip	94546-5227
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Legal Description	LOT: 00022 BLK: AR: 084A PAGE: 0216
Legal Subdivision	987 EDEN TOWNSHIP
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	2
Census Block	2002
Census Tract	430600

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	2 Individual Names on Record
Mailing Address	3221 ENCINAL AVE, ALAMEDA, CA 94501-4804
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
May 12, 2021	Deed of Trust, Mortgage · Conventional Mortgage GENERAL MORTGAGE CAPITAL CORP
Dec 6, 2019	Grant Deed, Transfer · Conventional Mortgage GENERAL MORTGAGE CAPITAL CORP
Feb 14, 2019	Deed of Trust, Mortgage · Conventional Mortgage LING-YU-CHIU
Jan 31, 2018	Quit Claim Deed MICHAEL FUNG

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Dec 6, 2019 · Amount on Record
Deed Sale	Dec 6, 2019 · Amount on Record
Prior Sale	Jun 6, 2016 · Amount on Record
Deed Document Number	2019250713
Prior Transfer Date	Jan 29, 2018
Prior Transfer Doc	0000018145
Record Updated	Oct 29, 2026

May 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	20445 STANTON AVE, CASTRO VALLEY, CA 94546-5227
Transaction Type	Mortgage
Record Updated	Aug 22, 2022
Title Company	CHICAGO TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3221 ENCINAL AVE, ALAMEDA, CA 94501-4804

Mortgage

Document Number	0000181410
Date	May 12, 2021
Instrument	2021181410

Lender

Name	GENERAL MORTGAGE CAPITAL CORP
Type	Mortgage Company
Address	BURLINGAME, CA 94010

Agreement

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

December 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Dec 6, 2019
Property Address	20445 STANTON AVE, CASTRO VALLEY, CA 94546-5227
Document Number	0000250713
Instrument Date	Dec 2, 2019
Instrument	2019250713
Transaction Type	Transfer
Record Updated	Aug 22, 2022
Title Company	CHICAGO TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	3221 ENCINAL AVE, ALAMEDA, CA 94501-4804

Mortgage

Document Number	0000250714
Date	Dec 6, 2019
Instrument	2019250714

Lender

Name	GENERAL MORTGAGE CAPITAL CORP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jan 1, 2050

February 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	20445 STANTON AVE, CASTRO VALLEY, CA 94546-5227
Document Number	0000242489
Instrument Date	Feb 14, 2019
Transaction Type	Mortgage
Record Updated	Jan 6, 2020
Title Company	NOT AVAILABLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	20445 STANTON AVE CASTRO VALLEY CA 945465227, CASTRO VALLEY, CA 94546-5227

Mortgage

Document Number	0000242489
Date	Nov 25, 2019
Instrument	242489

Lender

Name	LING-YU-CHIU
Address	15522 JUTLAND ST, SAN LEANDRO, CA 94579-2227

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded

Interest

Rate	10%

January 2018: Quit Claim Deed

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Jan 31, 2018
Property Address	20445 STANTON AVE, CASTRO VALLEY, CA 94546-5227
Document Number	0000018145
Instrument Date	Jan 29, 2018
Instrument	18145
Record Updated	Feb 13, 2018
Title Company	CHICAGO TITLE COMPANY

Transaction

Tax	$0.00
Additional	Quitclaim

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	3539 YORK LN SAN RAMON CA 945825819, SAN RAMON, CA 94582-5819

Mortgage

Document Number	18146
Date	Jan 31, 2018
Instrument	18146

Lender

Name	MICHAEL FUNG
Address	3559 HERMAN DR, LAFAYETTE, CA 94549-4931

Agreement

Amount	Amount Recorded

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	California
County	Alameda County
Unified School District	Castro Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$942,597 (+2%) Land $282,779 Building $659,818
2025	$12,507.00 (+4.23%)	$924,117 (+4.04%) Land $277,235 Building $646,882
2023	$12,000.00	$888,238 Land $266,471 Building $621,767

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

Source: FEMA National Flood Hazard Layer, effective May 25, 2026

FEMA Flood Zone	Zone X minimal risk
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
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	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 709 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 · DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 2,000
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100

May also be available: GeoLinks, T-Mobile.

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