19475 Mount Jasper Dr, Castro Valley, CA 94552 Property Records

Alameda County property record for 19475 Mount Jasper Dr, Castro Valley, CA 94552

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,125 sqft · built 1988
Lot Size	0.181 acres (7,900 sqft)
Owner	2 Company Names on Record
Tax Bill	$6,106 (2025)
Deeds & Mortgages	Aug 2026 Construction Loan
Flood Zone	Zone X (minimal risk)
APN	`85A-6408-122`

Property Details

APN / Parcel Number

Primary APN	`85A-6408-122`
Alternative APN	`085A-6408-122-00`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	2,125 sqft Living Area

Exterior

Year Built	Built 1988
Effective Year Built	Effective 1988
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	7,900 sqft (0.181 acres)

Location & Zoning

Street Address	19475 MOUNT JASPER DR
City	CASTRO VALLEY
State	CA
Zip	94552-1903
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00039 BLK: TR: 5500
Legal Subdivision	TR 5500
Legal Tract	5500
Legal Lot Number	39
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	2
Census Block	2006
Census Tract	430101

Owner

Source: Alameda County records, as of October 22, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Company Names on Record
Mailing Address	19475 MOUNT JASPER DR, CASTRO VALLEY, CA 94552-1903
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family Living Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Jun 13, 2000
Transfer Doc	0000225392
Record Updated	Oct 29, 2026

August 2026: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Aug 26, 2026
Property Address	19475 MOUNT JASPER DR, CASTRO VALLEY, CA 94552-1903
Document Number	0000109568
Instrument Date	Aug 21, 2026
Instrument	2026109568
Transaction Type	Transfer
Record Updated	Oct 6, 2026
Title Company	CHICAGO TITLE W, CHICAGO TITLE

Transaction

Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Family Living Trust
Address	19475 MOUNT JASPER DR, CASTRO VALLEY, CA 94552-1903

Mortgage

Document Number	0000109569,
Date	Aug 26, 2026
Instrument	2026109569

Lender

Name	PLANET HOME LENDING

Agreement

Type	Construction Mortgage
Amount	Amount Recorded
Term	12 Months
Due	Aug 21, 2027

Interest

Max Rate	-1%

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		$452,804 (+0.45%) Land $181,811 Building $277,993
2025	$6,106.00 (+4.29%) Homeowner's exemption	$450,789 (+4.04%) Land $178,246 Building $272,543
2023	$5,855.00 Homeowner's exemption	$433,285 Land $171,325 Building $261,960	$1,119,690

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