Contra Costa County property record for 4654 N Larwin Ave, Concord, CA 94521 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,167 sqft · built 1977 |
| Lot Size | 0.146 acres (6,375 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $975,000 (May 2025) |
| Tax Bill | $13,281 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 133-462-008-3 |
| Primary APN | 133-462-008-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 2,167 sqft Living Area |
| 1st Floor Area | 1,066 sqft |
| 2nd Floor Area | 1,101 sqft |
| Year Built | Built 1977 |
|---|---|
| Effective Year Built | Effective 1978 |
| Architectural Style | Cluster |
| Lot Area | 6,375 sqft (0.146 acres) |
| Garage Type | Attached |
| Garage Area | 644 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4654 N LARWIN AVE |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94521-4317 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 4544 LOT 896 |
| Legal Subdivision | COWELL RANCH-UN #11 SUB 4544 |
| Legal Tract | 4544 |
| Legal Lot Number | 896 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2001 |
| Census Tract | 334006 |
Source: Contra Costa County records · APN 133-462-008-3
Assessment roll updated July 14, 2026 · Last verified August 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 | 4654 N LARWIN AVE, CONCORD, CA 94521-4317 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | May 19, 2025 · Amount on Record |
| Deed Sale | May 19, 2025 · Amount on Record |
| Deed Document Number | 202549441 |
| Prior Transfer Date | Oct 11, 2023 |
| Prior Transfer Doc | 0000101904 |
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Concord City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $994,500 (-10.55%) Land $586,500 Building $408,000 | |
| 2025 | $13,281.00 (+334.16%) | $1,111,800 (+474.62%) Land $601,800 Building $510,000 |
| 2023 | $3,059.00 (+2.07%) | $193,485 Land $45,687 Building $147,798 |
| 2022 | $2,997.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Wildfire Risk | Moderate above 45% of the US · above 26% of California |
|---|---|
| Wildfire Likelihood | About 1 in 1,449 per year |
| Exposure | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 472 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Radiate Holdings | Cable | 1,500 / 50 |
| Unwired | Fixed Wireless | 300 / 25 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: Verizon, AT&T. Availability varies by address; speeds are provider-advertised maximums, not measured.
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