Contra Costa County property record for 4270 Leon Dr, Clayton, CA 94517 · Last verified July 2026
| Property Type | Rural Home |
|---|---|
| Details | 3,151 sqft · built 2009 |
| Lot Size | 5 acres (218,061 sqft) |
| Owner | Company Name on File |
| Tax Bill | $8,821 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 080-160-019-8 |
| Primary APN | 080-160-019-8 |
|---|---|
| Alternative APN |
|
| Total Rooms | 1 Room |
|---|---|
| Stories | 1 Story |
| Building Area | 3,151 sqft Living Area |
| 1st Floor Area | 3,151 sqft |
| Year Built | Built 2009 |
|---|---|
| Effective Year Built | Effective 2009 |
| Lot Area | 218,061 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4270 LEON DR |
|---|---|
| City | CLAYTON |
| State | CA |
| Zip | 94517-9776 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Rural Home |
| Legal Description | PARCEL MAP 160 PG 46 PCL B |
| Legal Tract | 160PM46 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | TASSAJARA |
| Census Block Group | 1 |
| Census Block | 1042 |
| Census Tract | 355112 |
Source: Contra Costa County records · APN 080-160-019-8
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 | PO BOX 831, CLAYTON, CA 94517-0831 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jul 26, 1995 |
| Deed Sale | Jul 26, 1995 |
| Deed Document Number | 1995120894 |
| Last Transfer Date | Sep 17, 2014 |
| Transfer Doc | 0000163004 |
| 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 | $806,985 (+2%) Land $186,376 Building $620,609 | |
| 2025 | $8,821.00 (+3.76%) | $791,163 (+4.04%) Land $182,722 Building $608,441 |
| 2023 | $8,501.00 (+0.87%) | $760,443 Land $175,628 Building $584,815 |
| 2022 | $8,428.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133551121, 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 |
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| Flood Insurance Cost | Premium on Record median of 14 individual NFIP policies nearby |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 14 in force |
| Nearby Flood Claims | 2 (1982–2017) |
| Most Recent Claim | Jan 2017, river or lake flooding, Severe Winter Storms, Flooding, And Mudslides |
| Wildfire Risk | Very High above 91% of the US · above 74% of California |
|---|---|
| Wildfire Likelihood | About 1 in 80 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 31 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Starlink | Satellite (low-earth orbit) | 280 / 30 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
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