Contra Costa County property record for 4509 Buttress Ct, Concord, CA 94518
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,479 sqft · built 1981 |
| Lot Size | 0.34 acres (14,790 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $4,973 (2025) |
| Deeds & Mortgages | Aug 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 134-491-004-5 |
| Primary APN | 134-491-004-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 2,479 sqft Living Area |
| Gross Area | 2,908 sqft |
| 1st Floor Area | 1,638 sqft |
| 2nd Floor Area | 841 sqft |
| Year Built | Built 1981 |
|---|---|
| Effective Year Built | Effective 1982 |
| Lot Area | 14,790 sqft (0.34 acres) |
| Garage Type | Attached |
| Garage Area | 429 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4509 BUTTRESS CT |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94518-1934 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RPD |
| Legal Description | T04554 L0037 B EX MR |
| Legal Subdivision | SUBDIVISION 4554 |
| Legal Tract | 04554 |
| Legal Lot Number | 37 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 5 |
| Census Block | 5002 |
| Census Tract | 337300 |
4509 Buttress Ct is owner-occupied and held in a trust since March 2015.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 4509 BUTTRESS CT, CONCORD, CA 94518-1934 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
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 |
|---|---|
| Last Transfer Date | Mar 13, 2015 |
| Transfer Doc | 0000056527 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4509 BUTTRESS CT, CONCORD, CA 94518-1934 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000175881 |
|---|---|
| Date | Aug 19, 2020 |
| Instrument | 2020-175881 |
| Name | AMERIS BANK |
|---|---|
| Type | Bank |
| Address | MARIETTA, GA 30067 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Sep 1, 2050 |
The 2025 property tax bill for 4509 Buttress Ct was $4,973 with a homeowner's 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 | $373,407 (+2%) Land $113,184 Building $260,223 | |
| 2025 | $4,973.00 Homeowner's exemption | $366,086 Land $110,965 Building $255,121 |
| 2023 | $4,731.00 (+1.68%) Homeowner's exemption | $351,872 Land $106,657 Building $245,215 |
| 2022 | $4,653.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4509 Buttress Ct in Zone X, an area of minimal flood risk.
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.
Wildfire risk around 4509 Buttress Ct is moderate, ranking above 56% of the US, with a 0.1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 56% of the US · lower than 66% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 73 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 |
May also be available: T-Mobile.
5G (outdoors only) and 4G LTE
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