Contra Costa County property record for 850 Gaylene Ct, Concord, CA 94518
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,801 sqft · built 1969 |
| Lot Size | 0.227 acres (9,900 sqft) |
| Owner | Company Name on Record |
| Last Sale | $682,000 (Jul 2005) |
| Tax Bill | $11,295 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 129-382-015-3 |
| Primary APN | 129-382-015-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 1,801 sqft Living Area |
| Gross Area | 2,253 sqft |
| 1st Floor Area | 1,801 sqft |
| Year Built | Built 1969 |
|---|---|
| Effective Year Built | Effective 1969 |
| Lot Area | 9,900 sqft (0.227 acres) |
| Garage Type | Attached |
| Garage Area | 452 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Central |
|---|
| Street Address | 850 GAYLENE CT |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94518-2612 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R7 |
| Legal Description | TRACT 3595 LOT 38 |
| Legal Subdivision | BOYDS ADDITION |
| Legal Tract | 3595 |
| Legal Lot Number | 38 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 4 |
| Census Block | 4002 |
| Census Tract | 337202 |
Source: Contra Costa County records, as of July 14, 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 Record |
|---|---|
| Mailing Address | PO BOX 3405, WALNUT CREEK, CA 94598-0405 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jul 29, 2005 · Amount on Record |
| Deed Sale | Jul 29, 2005 · Amount on Record |
| Deed Document Number | 2005281761 |
| Prior Transfer Date | Sep 2, 2004 |
| Prior Transfer Doc | 0000383752 |
| Record Updated | Sep 20, 2026 |
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 | $950,632 (+2%) Land $486,189 Building $464,443 | |
| 2025 | $11,295.00 (+4.35%) | $931,993 (+4.04%) Land $476,656 Building $455,337 |
| 2023 | $10,824.00 (+1.21%) | $895,804 Land $458,148 Building $437,656 |
| 2022 | $10,695.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
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 645 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 |
| AT&T DSL | 100 / 20 |
May also be available: T-Mobile, Verizon.
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