Contra Costa County property record for 4485 River Ash Ct, Concord, CA 94521
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,765 sqft · built 1976 |
| Lot Size | 0.125 acres (5,460 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $775,000 (Aug 2020) |
| Tax Bill | $10,194 (2025) |
| Deeds & Mortgages | Aug 2020 Sale & Mortgage Jun 2017 Transfer + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 133-341-006-4 |
| Primary APN | 133-341-006-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,765 sqft Living Area |
| Gross Area | 2,192 sqft |
| 1st Floor Area | 1,765 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1976 |
|---|---|
| Effective Year Built | Effective 1988 |
| Architectural Style | Contemporary |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 5,460 sqft (0.125 acres) |
| Garage Type | Attached |
| Garage Area | 427 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 4485 RIVER ASH CT |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94521-4401 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 3940 LOT 457 EX MR |
| Legal Subdivision | SUBDIVISION 3940 |
| Legal Tract | 3940 |
| Legal Lot Number | 457 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 334006 |
Source: Contra Costa County assessment roll, 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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 4485 RIVER ASH CT, CONCORD, CA 94521-4401 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Date | Document |
|---|---|
| Aug 11, 2020 | Grant Deed, Transfer · Conventional Mortgage AMERICAN PACIFIC MORTGAGE CORP |
| Jun 13, 2017 | Quit Claim Deed, Transfer Quitclaim |
| Dec 30, 2016 | Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LNS |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Aug 11, 2020 · Amount on Record |
| Deed Sale | Aug 11, 2020 · Amount on Record |
| Prior Sale | Apr 24, 1998 · Amount on Record |
| Deed Document Number | 2020166578 |
| Prior Transfer Date | Jun 5, 2017 |
| Prior Transfer Doc | 0000105044 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Aug 11, 2020 |
| Property Address | 4485 RIVER ASH CT, CONCORD, CA 94521-4401 |
| Document Number | 0000166578 |
| Map Reference | MB 166 PG 25 |
| Instrument Date | Jul 27, 2020 |
| Instrument | 2020-166578 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | OLD REPUBLIC TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 4485 RIVER ASH CT, CONCORD, CA 94521-4401 |
| Document Number | 0000166579 |
|---|---|
| Date | Aug 11, 2020 |
| Instrument | 2020-166579 |
| Name | AMERICAN PACIFIC MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Aug 1, 2050 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jun 13, 2017 |
| Property Address | 4485 RIVER ASH CT, CONCORD, CA 94521-4401 |
| Document Number | 0000105044 |
| Instrument Date | Jun 5, 2017 |
| Instrument | 105044 |
| Transaction Type | Transfer |
| Record Updated | Jun 26, 2017 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 4485 RIVER ASH CT CONCORD CA 945214401, CONCORD, CA 94521-4401 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4485 RIVER ASH CT, CONCORD, CA 94521-4401 |
| Document Number | 0000006865 |
| Instrument Date | Dec 30, 2016 |
| Transaction Type | Mortgage |
| Record Updated | Jan 17, 2017 |
| Title Company | TSI TITLE COMPANY/CA INC, TSI TITLE CO/CA INC |
| Name | Verified Name |
|---|---|
| Relationship | Husband and Wife |
| Address | 4485 RIVER ASH CT CONCORD CA 945214401, CONCORD, CA 94521-4401 |
| Document Number | 0000006865 |
|---|---|
| Date | Jan 12, 2017 |
| Instrument | 6865 |
| Name | QUICKEN LNS |
|---|---|
| Type | Funding / Finance Company |
| Address | DETROIT, MI 48226-1906 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jan 11, 2047 |
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 | $855,660 (+2%) Land $524,437 Building $331,223 | |
| 2025 | $10,194.00 (+4.44%) Homeowner's exemption | $838,883 (+4.04%) Land $514,154 Building $324,729 |
| 2023 | $9,761.00 (+1.27%) Homeowner's exemption | $806,310 Land $494,190 Building $312,120 |
| 2022 | $9,639.00 |
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 · 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 7 (15% premium discount) |
| Nearby Flood Policies | 3 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 62% of the US · lower than 77% of California |
|---|---|
| Wildfire Likelihood | 0.06% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 552 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Radiate Holdings Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
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