1730 Upper Trail Rd, Clayton, CA 94517 Property Records

Contra Costa County property record for 1730 Upper Trail Rd, Clayton, CA 94517

Property Summary

Property Type	Recreational Vacant Land
Lot Size	0.75 acres (32,670 sqft)
Owner	Company Name on File
Last Sale	$380,000 (Feb 2005)
Tax Bill	$850 (2025)
Flood Zone	Zone X (minimal risk)
APN	`078-163-005-8`

Property Details

APN / Parcel Number

Primary APN	`078-163-005-8`
Alternative APN	`078-163-005`

Exterior

Lot Area	32,670 sqft (0.75 acres)

Location & Zoning

Street Address	1730 UPPER TRAIL RD
City	CLAYTON
State	CA
Zip	94517-9711
Property Category	Public Works
Property Type	Public Works > Recreational Vacant Land
Local Zoning Code	FR
Legal Description	TRACT 2959 LOT 20
Legal Subdivision	UPPER TRAIL
Legal Tract	2959
Legal Lot Number	20
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1001
Census Tract	355306

Owner

Source: Contra Costa County records · APN 078-163-005-8

Assessment roll updated 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	Company Name on File
Mailing Address	1740 UPPER TRAIL RD, CLAYTON, CA 94517-9711
Owner Type	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Feb 23, 2005 · Amount on Record
Deed Sale	Feb 23, 2005 · Amount on Record
Deed Document Number	200560919
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

Source: Contra Costa County records · Assessment roll updated 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 and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Year	Tax Bill	Assessed Value
2026		$70,457 (+2%) Land $70,457
2025	$850.00 (+3.41%)	$69,076 (+4.04%) Land $69,076
2023	$822.00 (+0.74%)	$66,395 Land $66,395
2022	$816.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
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	Very High above 92% of the US · above 75% of California
Wildfire Likelihood	1% annual chance
Exposure	Direct burnable vegetation at the parcel

Insurers in high-risk areas may require mitigation or decline coverage; check availability before making an offer.

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 as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Verizon Fixed Wireless	300 / 20
Starlink Satellite	280 / 30

Based on FCC filings for 11 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System 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.