3848 Modesto St, Castro Valley, CA 94546 Property Records

Alameda County property record for 3848 Modesto St, Castro Valley, CA 94546

Property Summary

Property Type	Single Family Home
Details	3 bd · 1.5 ba · 1,294 sqft · built 1950
Lot Size	0.117 acres (5,100 sqft)
Owner	2 Individual Names on Record
Last Sale	$795,000 (Oct 2019)
Tax Bill	$11,128 (2025)
Deeds & Mortgages	Jun 2021 Mortgage Oct 2019 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`84C-766-19`

Property Details

APN / Parcel Number

Primary APN	`84C-766-19`
Alternative APN	`084C-0766-019-00`

Interior

Bedrooms	3 Beds
Full Baths	1.5 Baths
Half Baths	1 Half Bath
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,294 sqft Living Area

Exterior

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

Location & Zoning

Street Address	3848 MODESTO ST
City	CASTRO VALLEY
State	CA
Zip	94546-4439
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00006 BLK: 0001 TR: 0951
Legal Subdivision	TRACT 951
Legal Tract	0951
Legal Lot Number	6
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	4
Census Block	4004
Census Tract	430800

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	3848 MODESTO ST, CASTRO VALLEY, CA 94546-4439
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Jun 16, 2021	Intrafamily Transfer, Transfer · Conventional Mortgage GOOGAIN INC
Oct 30, 2019	Grant Deed, Transfer · Conventional Mortgage WELLS FARGO BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Oct 30, 2019 · Amount on Record
Deed Sale	Oct 30, 2019 · Amount on Record
Prior Sale	Oct 29, 2010 · Amount on Record
Deed Document Number	2019221096
Prior Transfer Date	May 24, 1995
Prior Transfer Doc	0000116811
Record Updated	Oct 29, 2026

June 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	Jun 16, 2021
Property Address	3848 MODESTO ST, CASTRO VALLEY, CA 94546-4439
Document Number	0000217529
Map Reference	MB 21 PG 12
Instrument Date	Jun 8, 2021
Instrument	2021217529
Transaction Type	Transfer
Record Updated	Jul 5, 2021
Title Company	ATLANTIS TITLE COMPANY, ATLAS TITLE COMPANY

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	3848 MODESTO ST, CASTRO VALLEY, CA 94546-4439

Mortgage

Document Number	0000217530
Date	Jun 16, 2021
Instrument	2021217530

Lender

Name	GOOGAIN INC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	181 Months
Due	Jul 1, 2036

October 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Oct 30, 2019
Property Address	3848 MODESTO ST, CASTRO VALLEY, CA 94546-4439
Document Number	0000221096
Map Reference	MB 21 PG 12
Instrument Date	Oct 22, 2019
Instrument	2019221096
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	OLD REPUBLIC 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	Joint Tenants
Address	3848 MODESTO ST, CASTRO VALLEY, CA 94546-4439

Mortgage

Document Number	0000221097
Date	Oct 30, 2019
Instrument	2019221097

Lender

Name	WELLS FARGO BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2049

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		$886,821 (+2%) Land $266,046 Building $620,775
2025	$11,128.00 (+2.24%)	$869,435 (+4.04%) Land $260,830 Building $608,605
2024	$10,884.00 (+1.58%)
2023	$10,715.00	$835,680 Land $250,704 Building $584,976	$914,670

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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