Contra Costa County property record for 3648 Walnut Ave, Concord, CA 94519
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,000 sqft · built 1947 |
| Lot Size | 0.167 acres (7,280 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $341,000 (Feb 2003) |
| Tax Bill | $6,463 (2025) |
| Deeds & Mortgages | Feb 2022 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 114-321-013-4 |
| Primary APN | 114-321-013-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,000 sqft Living Area |
| 1st Floor Area | 1,000 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 1947 |
| Architectural Style | Ranch |
| Exterior Material | Brick |
| Construction Type | Brick |
| Roof Material | Composition Shingle |
| Lot Area | 7,280 sqft (0.167 acres) |
| Lot Dimensions | 140 ft deep x 52 ft wide |
| Garage Type | Detached |
| Garage Area | 440 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Floor/Wall Furnace |
|---|---|
| Sewer | Municipal |
| Street Address | 3648 WALNUT AVE |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94519-1931 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R8 |
| Legal Description | LA BONITA TRACT 6 |
| Legal Subdivision | LA BONITA |
| Legal Tract | 6 |
| Legal Lot Number | 6 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 4 |
| Census Block | 4000 |
| Census Tract | 331000 |
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 | 3648 WALNUT AVE, CONCORD, CA 94519-1931 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Feb 11, 2003 · Amount on Record |
| Deed Sale | Feb 11, 2003 · Amount on Record |
| Prior Sale | Jul 26, 2001 · Amount on Record |
| Deed Document Number | 200365625 |
| Prior Transfer Date | Jul 20, 2001 |
| Prior Transfer Doc | 0000215362 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3648 WALNUT AVE, CONCORD, CA 94519-1931 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | CHICAGO TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 3725 CAMINO DIABLO, BYRON, CA 94514-0077 |
| Document Number | 0000020291 |
|---|---|
| Date | Feb 2, 2022 |
| Instrument | 2022-020291 |
| Name | PRIMELENDING |
|---|---|
| Type | Mortgage Company |
| Address | DALLAS, TX 75252 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Feb 1, 2052 |
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 | $503,734 (+2%) Land $370,790 Building $132,944 | |
| 2025 | $6,463.00 (+4.77%) | $493,858 (+4.04%) Land $363,520 Building $130,338 |
| 2023 | $6,169.00 (+1.45%) | $474,683 Land $349,405 Building $125,278 |
| 2022 | $6,081.00 |
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AH, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 2 in force |
| Nearby Flood Claims | 1 (1999) |
| Most Recent Claim | Apr 1999 · rainfall accumulation |
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 | Not rated no burnable land within ember reach |
|---|
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 505 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| 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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