888 Diablo Downs Dr, Clayton, CA 94517 Property Records

Contra Costa County property record for 888 Diablo Downs Dr, Clayton, CA 94517

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 3,019 sqft · built 1983
Lot Size	0.926 acres (40,320 sqft)
Owner	2 Company Names on File
Last Sale	$750,000 (Nov 2012)
Tax Bill	$10,353 (2025)
Flood Zone	Zone X (minimal risk)
APN	`119-500-009-4`

Property Details

APN / Parcel Number

Primary APN	`119-500-009-4`
Alternative APN	`119-500-009`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	11 Rooms
Stories	2 Stories
Building Area	3,019 sqft Living Area
1st Floor Area	1,598 sqft
2nd Floor Area	1,421 sqft

Exterior

Year Built	Built 1983
Effective Year Built	Effective 2000
Lot Area	40,320 sqft (0.926 acres)
Garage Type	Attached
Garage Area	1,050 sqft
Parking Spaces	4 Parking Spaces

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	888 DIABLO DOWNS DR
City	CLAYTON
State	CA
Zip	94517-1560
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R40
Legal Description	T04874 L0008 B
Legal Subdivision	SUBDIVISION 4874
Legal Tract	04874
Legal Lot Number	8
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1011
Census Tract	355306

Owner

Source: Contra Costa County assessment roll, APN 119-500-009-4, as of July 14, 2026 · Last verified July 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 File
Mailing Address	888 DIABLO DOWNS DR, CLAYTON, CA 94517-1560
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Life Tenant

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Nov 14, 2012 · Amount on Record
Deed Sale	Nov 14, 2012 · Amount on Record
Prior Sale	Jun 02, 2004 · Amount on Record
Deed Document Number	2012288058
Last Transfer Date	Mar 07, 2025
Transfer Doc	0000022351
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

Source: Contra Costa County assessment roll as of July 14, 2026 · Last verified July 2026

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Unified School District	Mount Diablo Unified School District (KG - 12)

Tax Bill & Assessment History

Assessed value is set for property tax purposes and is not a market price estimate.

Year	Tax Bill	Assessed Value
2026		$942,031 (+2%) Land $452,175 Building $489,856
2025	$10,353.00 (+3.74%)	$923,560 (+4.04%) Land $443,309 Building $480,251
2023	$9,980.00 (+0.86%)	$887,699 Land $426,096 Building $461,603
2022	$9,895.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), as of October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133553061, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026

Flood

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 6 (20% premium discount)
Nearby Flood Policies	1 in force
Nearby Flood Claims	1 (1982)
Most Recent Claim	Dec 1982 · tidal / storm surge

Wildfire

Wildfire Risk	Moderate above 67% of the US · above 42% of California
Wildfire Likelihood	0.2% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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.

Internet Providers

Source: FCC Broadband Data Collection, 351 locations within half a mile, as of December 31, 2025 · Last verified October 2026

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

May also be available: AT&T, Radiate Holdings.

Drinking Water

Source: EPA Safe Drinking Water Information System, water system CA0710003, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CONTRA COSTA WATER DISTRICT serves 210,500 people
Water Source	Surface water
Last State Inspection	Jan 2022
Lead	Under 1 ppb (2026–2028) 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.