Contra Costa County property record for 1850 Mount Diablo St, Concord, CA 94520
| Property Type | Retail Stores (Personal Services, Photography, Travel) |
|---|---|
| Details | 4,905 sqft · built 1958 |
| Lot Size | 0.144 acres (6,250 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $370,000 (Jan 1996) |
| Tax Bill | $10,751 (2025) |
| Deeds & Mortgages | Feb 2018 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 126-077-003-5 |
| Primary APN | 126-077-003-5 |
|---|---|
| Alternative APN |
|
| Total Rooms | 3 Rooms |
|---|---|
| Stories | 1 Story |
| Building Area | 4,905 sqft Gross Area |
| 1st Floor Area | 4,905 sqft |
| Year Built | Built 1958 |
|---|---|
| Effective Year Built | Effective 1966 |
| Lot Area | 6,250 sqft (0.144 acres) |
| Street Address | 1800 MOUNT DIABLO ST, 1850 |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94520-2432 |
| Property Category | Commercial |
| Property Type | Commercial > Retail > Retail Stores (Personal Services, Photography, Travel) |
| Legal Description | TOWN OF TODAS SANTOS LOT 1 BLK G |
| Legal Subdivision | TODOS SANTOS |
| Legal Block | G |
| Legal Lot Number | 1 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1021 |
| Census Tract | 328000 |
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 | Individual Name on Record |
|---|---|
| Mailing Address | 115 4TH AVE, 2J, NEW YORK, NY 10003-4907 |
| Owner Type | Individual |
| Vesting | Single Person |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jan 31, 1996 · Amount on Record |
| Deed Sale | Jan 31, 1996 · Amount on Record |
| Deed Document Number | 199617140 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 1850 MOUNT DIABLO ST, CONCORD, CA 94520-2432 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | OLD REPUBLIC TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000028907 |
|---|---|
| Date | Feb 26, 2018 |
| Instrument | 2018-028907 |
| Name | MECHANICS BANK |
|---|---|
| Type | Bank |
| Address | HERCULES, CA 94547 |
| Type | Commercial Mortgage |
|---|---|
| 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 | Concord City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $457,484 (+2%) Land $137,660 Building $319,824 | |
| 2025 | $10,751.00 (+2.48%) | $448,514 (+4.04%) Land $134,961 Building $313,553 |
| 2023 | $10,491.00 (-3.71%) | $431,099 Land $129,721 Building $301,378 |
| 2022 | $10,895.00 |
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
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; 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 468 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable · Fiber in parts of the area | 2,000 / 250 |
| Astound Broadband Cable · Fiber in parts of the area | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Sonic Telecom, Verizon.
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