Contra Costa County property record for 4145 Joan Ave, Concord, CA 94521
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,689 sqft · built 1953 |
| Lot Size | 0.126 acres (5,500 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $490,000 (May 2015) |
| Tax Bill | $8,106 (2025) |
| Deeds & Mortgages | Apr 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 132-135-011-6 |
| Primary APN | 132-135-011-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,689 sqft Living Area |
| 1st Floor Area | 1,262 sqft |
| 2nd Floor Area | 427 sqft |
| Year Built | Built 1953 |
|---|---|
| Effective Year Built | Effective 1965 |
| Lot Area | 5,500 sqft (0.126 acres) |
| Garage Area | 160 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|
| Street Address | 4145 JOAN AVE |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94521-2737 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R6 |
| Legal Description | CANTERBURY VILLAGE #2 LOT 178 |
| Legal Subdivision | CANTERBURY VILLAGE 02 |
| Legal Lot Number | 178 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 334001 |
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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 4145 JOAN AVE, CONCORD, CA 94521-2737 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 20, 2015 · Amount on Record |
| Deed Sale | May 20, 2015 · Amount on Record |
| Prior Sale | Oct 30, 1998 |
| Deed Document Number | 2015100821 |
| Prior Transfer Date | Oct 25, 1996 |
| Prior Transfer Doc | 0000207012 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4145 JOAN AVE, CONCORD, CA 94521-2737 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0000062254 |
|---|---|
| Date | Apr 1, 2020 |
| Instrument | 2020-062254 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Amount | Amount Recorded |
|---|---|
| Term | 0 Months |
| Due | Apr 21, 2020 |
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 | $600,675 (+2%) Land $367,762 Building $232,913 | |
| 2025 | $8,106.00 (+4.28%) Homeowner's exemption | $588,898 (+4.04%) Land $360,551 Building $228,347 |
| 2023 | $7,773.00 (+1.28%) Homeowner's exemption | $566,032 Land $346,551 Building $219,481 |
| 2022 | $7,675.00 |
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 AE, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 6 in force |
| Nearby Flood Claims | 4 (1982–1998) |
| Claims Outside the SFHA | 1 of 4 |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
| Claims by Event |
|
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 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 711 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 |
May also be available: AT&T, Sonic Telecom, T-Mobile, Verizon.
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