3823 Modesto St, Castro Valley, CA 94546 Property Records

Alameda County property record for 3823 Modesto St, Castro Valley, CA 94546

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 832 sqft · built 1950
Lot Size	0.117 acres (5,100 sqft)
Owner	2 Individual Names on File
Last Sale	$650,000 (Aug 2018)
Tax Bill	$9,342 (2025)
Deeds & Mortgages	Nov 2020 Mortgage Aug 2018 Sale & Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`84C-768-3`

Property Details

APN / Parcel Number

Primary APN	`84C-768-3`
Alternative APN	`084C-0768-003-00`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	5 Rooms
Stories	1 Story
Building Area	832 sqft Living Area

Exterior

Year Built	Built 1950
Effective Year Built	Effective 1980
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	5,100 sqft (0.117 acres)

Location & Zoning

Street Address	3823 MODESTO ST
City	CASTRO VALLEY
State	CA
Zip	94546-4438
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00003 BLK: 0002 TR: 0951
Legal Subdivision	TRACT 951
Legal Tract	0951
Legal Block	2
Legal Lot Number	3
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	4
Census Block	4003
Census Tract	430800

Owner

3823 Modesto St is owned and occupied by two individuals who bought it in August 2018.

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

Owner of Record	2 Individual Names on File
Mailing Address	3823 MODESTO ST, CASTRO VALLEY, CA 94546-4438
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
Nov 16, 2020	Deed of Trust, Mortgage · Conventional Mortgage GENERAL MORTGAGE CAPITAL CORP
Aug 8, 2018	Grant Deed, Transfer · ARM STERLING BANK & TRUST FSB
Aug 15, 2017	Deed of Trust, Mortgage · Line of Credit JP MORGAN CHASE BK

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 8, 2018 · Amount on File
Deed Sale	Aug 8, 2018 · Amount on File
Prior Sale	Mar 26, 2010 · Amount on File
Deed Document Number	2018155257
Prior Transfer Date	Aug 20, 2002
Prior Transfer Doc	0000428657
Record Updated	Oct 29, 2026

November 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	3823 MODESTO ST, CASTRO VALLEY, CA 94546-4438
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	CHICAGO TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3823 MODESTO ST, CASTRO VALLEY, CA 94546-4438

Mortgage

Document Number	0000311324
Date	Nov 16, 2020
Instrument	2020311324

Lender

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

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Dec 1, 2050

August 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Aug 8, 2018
Property Address	3823 MODESTO ST, CASTRO VALLEY, CA 94546-4438
Document Number	0000155257
Map Reference	MB 21 PG 12B
Instrument Date	Jul 20, 2018
Instrument	2018155257
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	NORTH AMERICAN TITLE

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	3823 MODESTO ST, CASTRO VALLEY, CA 94546-4438

Mortgage

Document Number	0000155258
Date	Aug 8, 2018
Instrument	2018155258

Lender

Name	STERLING BANK & TRUST FSB
Type	Bank

Agreement

Type	ARM
Amount	Amount on Record
Term	361 Months
Due	Sep 1, 2048

Interest

Rate Type	Adjustable Rate
Rate	5.87%
Type Change Date	Sep 1, 2025
Change Frequency	Annually
Min Rate At Change	3.95%
Max Rate At Change	10.8%
Index	1-Year LIBOR
Max Rate	10.8%

August 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	3823 MODESTO ST, CASTRO VALLEY, CA 94546-4438
Document Number	0000190601
Instrument Date	Aug 15, 2017
Transaction Type	Mortgage
Record Updated	Aug 25, 2018

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	3823 MODESTO ST CASTRO VALLEY CA 945464438, CASTRO VALLEY, CA 94546-4438

Mortgage

Document Number	0000190601
Date	Aug 30, 2017
Instrument	190601

Lender

Name	JP MORGAN CHASE BK
Type	Bank
Address	COLUMBUS, OH 43240

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	360 Months
Due	Aug 29, 2047

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

The 2025 property tax bill for 3823 Modesto St was $9,342 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		$732,575 (+1.03%) Land $221,872 Building $517,703
2025	$9,342.00 Homeowner's exemption	$725,074 Land $217,522 Building $507,552
2023	$8,985.00 Homeowner's exemption	$696,923 Land $209,077 Building $487,846	$743,220

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

Flood

FEMA maps place 3823 Modesto St in Zone X, an area of minimal flood risk.

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 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

The area around 3823 Modesto St has no burnable land within ember reach, so its wildfire risk is not rated.

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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