Contra Costa County property record for 1133 Winton Dr, Concord, CA 94518
| Property Type | Public School (Administration, Campus, Dorms, Instruction) |
|---|---|
| Details | 62,720 sqft · built 1966 |
| Lot Size | 9.2 acres (400,752 sqft) |
| Owner | Company Name on File |
| Tax Bill | $127,439 (2025) |
| Deeds & Mortgages | Jan 2019 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 145-130-024-6 |
| Primary APN | 145-130-024-6 |
|---|---|
| Alternative APN |
|
| Total Rooms | 2 Rooms |
|---|---|
| Stories | 1 Story |
| Building Area | 62,720 sqft Gross Area |
| 1st Floor Area | 62,720 sqft |
| Year Built | Built 1966 |
|---|---|
| Effective Year Built | Effective 1973 |
| Lot Area | 400,752 sqft |
| Street Address | 1133 WINTON DR |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94518-3527 |
| Property Category | Public Works |
| Property Type | Public Works > Public School (Administration, Campus, Dorms, Instruction) |
| Legal Description | RO SAN MIGUEL |
| Legal Subdivision | VALLEY LAND/THE RHO SAN MIGUEL |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 338201 |
1133 Winton Dr, a public works property, is owned by a company and is owner-occupied.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 1133 WINTON DR, CONCORD, CA 94518-3527 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 1133 WINTON DR, CONCORD, CA 94518-3527 |
| Document Number | 0000009973 |
| Instrument Date | Jan 1, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Feb 6, 2019 |
| Title Company | FIRST AMERICAN TITLE, FIRST AMERICAN TITLE INSURANCE |
| Additional |
|
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 1133 WINTON DR CONCORD CA 945183527, CONCORD, CA 94518-3527 |
The 2025 property tax bill for 1133 Winton Dr was $127,439 with an additional exemption.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Concord City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $39,092,795 (+2%) Land $3,391,712 Building $35,701,083 | |
| 2025 | $127,439.00 Additional exemption filed | $38,326,270 Land $3,325,208 Building $35,001,062 |
| 2023 | $123,718.00 (+1.5%) Additional exemption filed | $36,838,016 Land $3,196,087 Building $33,641,929 |
| 2022 | $121,886.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1133 Winton Dr in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 2 in force |
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.
The area around 1133 Winton Dr has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2022 |
| Lead | Under 1 ppb (2026–2028) action level 15 ppb |
| 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.
Source: FCC Broadband Data Collection, based on 406 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless · DSL | 100 / 20 |
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