Contra Costa County property record for 523 Concha Ct, Danville, CA 94526
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,493 sqft · built 1980 |
| Lot Size | 0.929 acres (40,470 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $412,181 (Aug 1994) |
| Tax Bill | $8,620 (2025) |
| Deeds & Mortgages | May 2020 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 216-352-008-9 |
| Primary APN | 216-352-008-9 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 2,493 sqft Living Area |
| Gross Area | 3,043 sqft |
| 1st Floor Area | 2,493 sqft |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1981 |
| Architectural Style | Cluster |
| Lot Area | 40,470 sqft (0.929 acres) |
| Garage Type | Attached |
| Garage Area | 550 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 523 CONCHA CT |
|---|---|
| City | DANVILLE |
| State | CA |
| Zip | 94526-3528 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 4664 LOT 29 |
| Legal Subdivision | DIABLO WEST SUB 4664 |
| Legal Tract | 4664 |
| Legal Lot Number | 29 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 346203 |
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 | 523 CONCHA CT, DANVILLE, CA 94526-3528 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 26, 1994 · Amount on Record |
| Deed Sale | Aug 26, 1994 · Amount on Record |
| Deed Document Number | 1994214111 |
| Last Transfer Date | Mar 10, 2025 |
| Transfer Doc | 0000022959 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 523 CONCHA CT, DANVILLE, CA 94526-3528 |
| Document Number | 0000093456 |
| Instrument Date | May 7, 2020 |
| Transaction Type | Mortgage |
| Record Updated | May 27, 2020 |
| Title Company | TITLE365 - OMAHA |
| Name | Verified Name |
|---|---|
| Address | 523 CONCHA CT DANVILLE CA 945263528, DANVILLE, CA 94526-3528 |
| Document Number | 0000093456 |
|---|---|
| Date | May 18, 2020 |
| Instrument | 93456 |
| Name | BANK OF AMERICA |
|---|---|
| Type | Bank |
| Address | TAMPA, FL 33634 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Danville Town |
| Unified School District | San Ramon Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $700,710 (+2%) Land $358,063 Building $342,647 | |
| 2025 | $8,620.00 (+5.21%) Homeowner's exemption | $686,972 (+4.04%) Land $351,043 Building $335,929 |
| 2023 | $8,193.00 (+0.75%) Homeowner's exemption | $660,298 Land $337,412 Building $322,886 |
| 2022 | $8,132.00 |
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 |
| Nearby Flood Policies | 4 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 64% of the US · lower than 78% of California |
|---|---|
| Wildfire Likelihood | 0.05% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| Lead | Under 1 ppb (2022–2024) 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 511 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Etheric Networks.
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