Contra Costa County property record for 3225 Mount Diablo St, Concord, CA 94518
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,087 sqft · built 1954 |
| Lot Size | 0.207 acres (9,000 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $1,753 (2025) |
| Deeds & Mortgages | Mar 2020 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 105-172-061-1 |
| Primary APN | 105-172-061-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,087 sqft Living Area |
| 1st Floor Area | 1,087 sqft |
| Year Built | Built 1954 |
|---|---|
| Effective Year Built | Effective 1954 |
| Lot Area | 9,000 sqft (0.207 acres) |
| Garage Type | Attached |
| Garage Area | 500 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 3225 MOUNT DIABLO ST |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94518-1160 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R8 |
| Legal Description | HUNTLEIGH PARK #3 LOT 61 |
| Legal Subdivision | HUNTLEIGH PARK 03 |
| Legal Lot Number | 61 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 335000 |
3225 Mount Diablo St is owner-occupied and held in a trust since March 2020.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 3225 MOUNT DIABLO ST, CONCORD, CA 94518-1160 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Mar 6, 2020 |
| Transfer Doc | 0000050449 |
| Record Updated | Sep 20, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Mar 17, 2020 |
| Property Address | 3225 MOUNT DIABLO ST, CONCORD, CA 94518-1160 |
| Document Number | 0000050449 |
| Instrument Date | Mar 6, 2020 |
| Instrument | 50449 |
| Transaction Type | Transfer |
| Record Updated | Apr 8, 2020 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 3225 MOUNT DIABLO ST CONCORD CA 945181160, CONCORD, CA 94518-1160 |
The 2025 property tax bill for 3225 Mount Diablo St was $1,753 with a homeowner's exemption.
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 | $75,562 (+2%) Land $35,730 Building $39,832 | |
| 2025 | $1,753.00 Homeowner's exemption | $74,081 Land $35,030 Building $39,051 |
| 2023 | $1,629.00 (+3.23%) Homeowner's exemption | $71,207 Land $33,671 Building $37,536 |
| 2022 | $1,578.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 3225 Mount Diablo St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 AO, within 500 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 | 3 (1980–1998) |
| Most Recent Claim | Mar 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.
The area around 3225 Mount Diablo St has no burnable land within ember reach, so its wildfire risk is not rated.
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 672 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Verizon.
5G (outdoors only) and 4G LTE
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