4636 James Ave, Castro Valley, CA 94546 Property Records

Alameda County property record for 4636 James Ave, Castro Valley, CA 94546

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 2,362 sqft · built 1977
Lot Size	0.188 acres (8,199 sqft)
Owner	2 Individual Names on File
Last Sale	$911,000 (Sep 2020)
Tax Bill	$12,422 (2025)
Deeds & Mortgages	Aug 2021 Mortgage Sep 2020 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`84C-810-22`

Property Details

APN / Parcel Number

Primary APN	`84C-810-22`
Alternative APN	`084C-0810-022-00`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	2,362 sqft Living Area

Exterior

Year Built	Built 1977
Effective Year Built	Effective 1978
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	8,199 sqft (0.188 acres)
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	4636 JAMES AVE
City	CASTRO VALLEY
State	CA
Zip	94546-2446
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00003 BLK: PM: 0097 PAGE: 0036
Legal Subdivision	PARCEL MAP 2019
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	3
Census Block	3000
Census Tract	430200

Owner

4636 James Ave is owned and occupied by two individuals who bought it in September 2020.

Source: Alameda County records, as of August 5, 2026

Owner of Record	2 Individual Names on File
Mailing Address	4636 JAMES AVE, CASTRO VALLEY, CA 94546-2446
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
Aug 10, 2021	Deed of Trust, Mortgage · Conventional Mortgage UNITED WHOLESALE MORTGAGE
Sep 2, 2020	Grant Deed, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 2, 2020 · Amount on File
Deed Sale	Sep 2, 2020 · Amount on File
Prior Sale	May 24, 1999 · Amount on File
Deed Document Number	2020220402
Prior Transfer Date	Aug 3, 2004
Prior Transfer Doc	0000362004
Record Updated	Oct 29, 2026

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	4636 JAMES AVE, CASTRO VALLEY, CA 94546-2446
Transaction Type	Mortgage
Record Updated	Aug 31, 2021
Title Company	ORABGE COAST TITLE, ORANGE COAST TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4636 JAMES AVE, CASTRO VALLEY, CA 94546-2446

Mortgage

Document Number	0000272275
Date	Aug 10, 2021
Instrument	2021272275

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company
Address	PONTIAC, MI 48341

Agreement

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

September 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Sep 2, 2020
Property Address	4636 JAMES AVE, CASTRO VALLEY, CA 94546-2446
Document Number	0000220402
Map Reference	MB 97 PG 36
Instrument Date	Aug 20, 2020
Instrument	2020220402
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount on Record
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	4636 JAMES AVE, CASTRO VALLEY, CA 94546-2446

Mortgage

Document Number	0000220403
Date	Sep 2, 2020
Instrument	2020220403

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Sep 1, 2050

Tax Assessment & Valuation

The 2025 property tax bill for 4636 James Ave was $12,422 with a homeowner's exemption.

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	Assessed Market Value
2026		$998,798 (+1.29%) Land $301,739 Building $704,059
2025	$12,422.00 Homeowner's exemption	$986,084 Land $295,825 Building $690,259
2023	$11,963.00 Homeowner's exemption	$947,804 Land $284,341 Building $663,463	$999,720

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

Flood

FEMA maps place 4636 James Ave in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

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
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 7 (15% premium discount)
Nearby Flood Policies	3 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

Wildfire risk around 4636 James Ave is low, with a 0.01% annual chance of 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	0.01% annual chance
Exposure	Direct burnable vegetation

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 804 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 · Fixed Wireless in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: Etheric Networks, GeoLinks.

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