3863 Modesto St, Castro Valley, CA 94546 Property Records

Alameda County property record for 3863 Modesto St, Castro Valley, CA 94546

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,457 sqft · built 1950
Lot Size	0.117 acres (5,100 sqft)
Owner	Company Name on Record
Last Sale	$260,000 (May 2000)
Tax Bill	$6,616 (2025)
Deeds & Mortgages	May 2022 Line of Credit Dec 2018 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`84C-768-8`

Property Details

APN / Parcel Number

Primary APN	`84C-768-8`
Alternative APN	`084C-0768-008-00`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,457 sqft Living Area

Exterior

Year Built	Built 1950
Effective Year Built	Effective 1976
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	5,100 sqft (0.117 acres)
Parking Spaces	1 Parking Space

Location & Zoning

Street Address	3863 MODESTO ST
City	CASTRO VALLEY
State	CA
Zip	94546-4438
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00008 BLK: 0002 TR: 0951
Legal Subdivision	TRACT 951
Legal Tract	0951
Legal Block	2
Legal Lot Number	8
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	4
Census Block	4003
Census Tract	430800

Owner

Source: Alameda County records, as of October 21, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	Company Name on Record
Mailing Address	3863 MODESTO ST, CASTRO VALLEY, CA 94546-4438
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
May 5, 2022	Deed of Trust, Mortgage · Line of Credit FREMONT BANK
Dec 11, 2018	Deed of Trust, Mortgage · Line of Credit FREMONT BANK

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	May 19, 2000 · Amount on Record
Deed Sale	May 19, 2000 · Amount on Record
Prior Sale	Aug 28, 1997 · Amount on Record
Deed Document Number	2000150026
Last Transfer Date	Oct 18, 2004
Transfer Doc	0000476124
Record Updated	Oct 29, 2026

May 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	3863 MODESTO ST, CASTRO VALLEY, CA 94546-4438
Transaction Type	Mortgage
Record Updated	Jun 8, 2022
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3863 MODESTO ST, CASTRO VALLEY, CA 94546-4438

Mortgage

Document Number	0000089251
Date	May 5, 2022
Instrument	2022089251

Lender

Name	FREMONT BANK
Type	Bank
Address	LIVERMORE, CA 94551

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	359 Months
Due	Apr 20, 2052

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

December 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	3863 MODESTO ST, CASTRO VALLEY, CA 94546-4438
Transaction Type	Mortgage
Record Updated	Feb 7, 2021
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000234109
Date	Dec 11, 2018
Instrument	2018234109

Lender

Name	FREMONT BANK
Type	Bank
Address	LIVERMORE, CA 94551

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	360 Months
Due	Dec 5, 2048

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

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	Assessed Market Value
2026		$496,919 (+0.58%) Land $122,274 Building $381,645
2025	$6,616.00 (+4.21%) Homeowner's exemption	$494,041 (+4.04%) Land $119,877 Building $374,164
2023	$6,349.00 Homeowner's exemption	$474,860 Land $115,223 Building $359,637	$897,660

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
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	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	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 704 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
Starlink Satellite	280 / 30
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks.

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