Contra Costa County property record for 1740 Upper Trail Rd, Clayton, CA 94517 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 2,799 sqft · built 1983 |
| Lot Size | 0.46 acres (20,037 sqft) |
| Owner | Company Name on File |
| Last Sale | $445,201 (Jan 2012) |
| Tax Bill | $3,196 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 078-163-006-6 |
| Primary APN | 078-163-006-6 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 2,799 sqft Living Area |
| 1st Floor Area | 2,799 sqft |
| Year Built | Built 1983 |
|---|---|
| Effective Year Built | Effective 1983 |
| Lot Area | 20,037 sqft (0.46 acres) |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 1740 UPPER TRAIL RD |
|---|---|
| City | CLAYTON |
| State | CA |
| Zip | 94517-9711 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 2959 LOT 19 |
| Legal Subdivision | UPPER TRAIL |
| Legal Tract | 2959 |
| Legal Lot Number | 19 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 355306 |
Source: Contra Costa County records · APN 078-163-006-6
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 |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jan 17, 2012 · Amount on Record |
| Deed Sale | Jan 17, 2012 · Amount on Record |
| Prior Sale | Feb 23, 2005 · Amount on Record |
| Deed Document Number | 20129748 |
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $281,844 (+2%) Land $51,239 Building $230,605 | |
| 2025 | $3,196.00 (+3.6%) | $276,319 (+4.04%) Land $50,235 Building $226,084 |
| 2023 | $3,085.00 (+0.85%) | $265,590 Land $48,285 Building $217,305 |
| 2022 | $3,059.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133553061, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| 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 Risk | Very High above 93% of the US · above 77% of California |
|---|---|
| Wildfire Likelihood | About 1 in 82 per year |
| 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.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 3 locations within about half a mile of this property, a small sample
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Verizon | Fixed Wireless | 300 / 20 |
| Starlink | Satellite (low-earth orbit) | 280 / 30 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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