Contra Costa County property record for 5000 Blum Rd, Martinez, CA 94553 · Last verified July 2026
| Property Type | Light Industrial |
|---|---|
| Details | 1,992 sqft · built 1967 |
| Lot Size | 0.27 acres (11,761 sqft) |
| Owner | Company Name on File |
| Tax Bill | $5,526 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 159-210-038 |
| Primary APN | 159-210-038 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 1,992 sqft Gross Area |
| 1st Floor Area | 1,992 sqft |
| Year Built | Built 1967 |
|---|---|
| Effective Year Built | Effective 1967 |
| Lot Area | 11,761 sqft (0.27 acres) |
| Street Address | 5000 BLUM RD |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-4308 |
| Property Category | Industrial |
| Property Type | Industrial > Light Industrial |
| Legal Description | PCL MAP 108 PG 8 PCL B |
| Legal Tract | 108PM8 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1017 |
| Census Tract | 320004 |
Source: Contra Costa County records · APN 159-210-038
Assessment roll updated July 14, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 123 SOUTH AVE, ALAMO, CA 94507-2153 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Oct 26, 2010 |
| Transfer Doc | 0000241966 |
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $368,958 (+2%) Land $229,583 Building $139,375 | |
| 2025 | $5,526.00 (+4.9%) | $361,725 (+4.04%) Land $225,082 Building $136,643 |
| 2023 | $5,268.00 (+2.07%) | $347,681 Land $216,343 Building $131,338 |
| 2022 | $5,161.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133200041, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 4 in force |
| Nearby Flood Claims | 1 (2017) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Jan 2017, rainfall accumulation, Severe Winter Storms, Flooding, And Mudslides |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 334 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Unwired | Fixed Wireless | 300 / 25 |
| Verizon | Fixed Wireless | 300 / 20 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: Radiate Holdings, AT&T. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G (outdoors only) and 4G LTE
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