19376 Mount Lassen Dr, Castro Valley, CA 94552 Property Records

Alameda County property record for 19376 Mount Lassen Dr, Castro Valley, CA 94552

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 3,022 sqft · built 1988
Lot Size	0.127 acres (5,527 sqft)
Owner	2 Individual Names on Record
Last Sale	$740,000 (May 2009)
Tax Bill	$12,030 (2025)
Flood Zone	Zone X (minimal risk)
APN	`85A-6408-100`

Property Details

APN / Parcel Number

Primary APN	`85A-6408-100`
Alternative APN	`085A-6408-100-00`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	3,022 sqft Living Area

Exterior

Year Built	Built 1988
Effective Year Built	Effective 1988
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	5,527 sqft (0.127 acres)

Location & Zoning

Street Address	19376 MOUNT LASSEN DR
City	CASTRO VALLEY
State	CA
Zip	94552-1927
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00017 BLK: TR: 5500
Legal Tract	5500
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	2
Census Block	2006
Census Tract	430101

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	19376 MOUNT LASSEN DR, CASTRO VALLEY, CA 94552-1927
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 22, 2009 · Amount on Record
Deed Sale	May 22, 2009 · Amount on Record
Prior Sale	Aug 1, 2000 · Amount on Record
Deed Document Number	2009163280
Prior Transfer Date	May 18, 2009
Prior Transfer Doc	0000174991
Record Updated	Oct 29, 2026

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		$964,930 (+1.27%) Land $291,579 Building $680,351
2025	$12,030.00 (+3.85%) Homeowner's exemption	$952,875 (+4.04%) Land $285,862 Building $667,013
2023	$11,584.00 Homeowner's exemption	$915,882 Land $274,764 Building $641,118	$1,431,630

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

FEMA Flood Zone	Zone X minimal risk
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	Moderate above 67% of the US · above 42% of California
Wildfire Likelihood	0.3% 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 495 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20
AT&T DSL	100 / 20