Contra Costa County property record for 3939 Joan Ave, Concord, CA 94521
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,830 sqft · built 1984 |
| Lot Size | 0.132 acres (5,760 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $835,000 (Feb 2021) |
| Tax Bill | $10,986 (2025) |
| Deeds & Mortgages | Feb 2021 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 132-090-068-9 |
| Primary APN | 132-090-068-9 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,830 sqft Living Area |
| 1st Floor Area | 870 sqft |
| 2nd Floor Area | 960 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1984 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Contemporary |
| Exterior Material | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 5,760 sqft (0.132 acres) |
| Lot Dimensions | 72 ft deep x 80 ft wide |
| Garage Type | Attached |
| Garage Area | 410 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 3939 JOAN AVE |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94521-2543 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R8 |
| Legal Description | PCL MAP 104 PG 6 POR PCL B |
| Legal Subdivision | PARCEL MAP 15 82 |
| Legal Tract | 104PM6 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2002 |
| 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 | 3939 JOAN AVE, CONCORD, CA 94521-2543 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 19, 2021 · Amount on Record |
| Deed Sale | Feb 19, 2021 · Amount on Record |
| Prior Sale | Apr 19, 2016 · Amount on Record |
| Deed Document Number | 202152017 |
| Prior Transfer Date | Mar 10, 1994 |
| Prior Transfer Doc | 0000075118 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Feb 19, 2021 |
| Property Address | 3939 JOAN AVE, CONCORD, CA 94521-2543 |
| Document Number | 0000052017 |
| Map Reference | MB 104 PG 6 |
| Instrument Date | Feb 16, 2021 |
| Instrument | 2021-052017 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| 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 | 3939 JOAN AVE, CONCORD, CA 94521-2543 |
| Document Number | 0000052018 |
|---|---|
| Date | Feb 19, 2021 |
| Instrument | 2021-052018 |
| Name | US BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Mar 1, 2051 |
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 | $921,905 (+2%) Land $590,682 Building $331,223 | |
| 2025 | $10,986.00 (+4.36%) | $903,829 (+4.04%) Land $579,100 Building $324,729 |
| 2023 | $10,527.00 (+1.21%) | $868,734 Land $556,614 Building $312,120 |
| 2022 | $10,401.00 |
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 | 9 in force |
| Nearby Flood Claims | 3 (1980–2005) |
| Most Recent Claim | Dec 2005 · Severe Storms, Flooding, Mudslides, And Landslides |
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 |
|---|
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 579 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Sonic Telecom.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures