Contra Costa County property record for 375 Arthur Rd, Martinez, CA 94553 · Last verified July 2026
| Property Type | Self Storage |
|---|---|
| Details | 35,948 sqft · built 1970 |
| Lot Size | 3.98 acres (173,717 sqft) |
| Owner | Company Name on File |
| Last Sale | $5,460,000 (Sep 2025) |
| Tax Bill | $12,918 (2025) |
| Deeds & Mortgages | Mar 2026 Mortgage Sep 2025 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 380-043-004-7 |
| Primary APN | 380-043-004-7 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 35,948 sqft Gross Area |
| 1st Floor Area | 35,948 sqft |
| Year Built | Built 1970 |
|---|---|
| Effective Year Built | Effective 1970 |
| Lot Area | 173,717 sqft |
| View / Lot | Canal |
| Street Address | 375 ARTHUR RD |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-1401 |
| Property Category | Industrial |
| Property Type | Industrial > Self Storage |
| Legal Description | RO LAS JUNTAS |
| Legal Subdivision | RO LAS JUNTAS |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1070 |
| Census Tract | 320001 |
Source: Contra Costa County records · APN 380-043-004-7
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 | 5 OLD LANCASTER RD, MALVERN, PA 19355-2132 |
| Owner Type | Company |
| Vesting | Limited Liability Partnership |
| Date | Document |
|---|---|
| Mar 27, 2026 | Deed of Trust, Mortgage · Commercial Mortgage BLACKSTONE TREASURY HOLDINGS I TORRO LLC |
| Sep 17, 2025 | Grant Deed, Transfer · Commercial Mortgage CITIBANK NA |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Sep 17, 2025 · Amount on Record |
| Deed Sale | Sep 17, 2025 · Amount on Record |
| Deed Document Number | 202595017 |
| Prior Transfer Date | Jun 04, 2008 |
| Prior Transfer Doc | 0000147897 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 375 ARTHUR RD, MARTINEZ, CA 94553-1401 |
| Transaction Type | Mortgage |
| Record Updated | Apr 07, 2026 |
| Name | Verified Name |
|---|---|
| Address | 41 FLATBUSH AVE 5A, 5A, BROOKLYN, NY 11217-1160 |
| Document Number | 0000030678 |
|---|---|
| Date | Mar 27, 2026 |
| Instrument | 2026- 030678 |
| Name | BLACKSTONE TREASURY HOLDINGS I TORRO LLC |
|---|---|
| Type | Non-Lending Institution |
| Address | 345 PARK AVE, NEW YORK, NY 10154 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Sep 17, 2025 |
| Property Address | 375 ARTHUR RD, MARTINEZ, CA 94553-1401 |
| Document Number | 0000095017 |
| Instrument Date | Sep 16, 2025 |
| Instrument | 2025- 095017 |
| Transaction Type | Transfer |
| Record Updated | Oct 02, 2025 |
| Amount | Amount Recorded |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 5 OLD LANCASTER RD, MALVERN, PA 19355-2132 |
| Document Number | 0000098655 |
|---|---|
| Date | Sep 17, 2025 |
| Instrument | 2025- 098655 |
| Name | CITIBANK NA |
|---|---|
| Type | Bank |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
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 | Martinez Unified School District (KG - 12) |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $5,460,000 (+517.63%) Land $1,735,000 Building $3,725,000 | |
| 2025 | $12,918.00 (-5.96%) | $884,021 (+4.04%) Land $78,154 Building $805,867 |
| 2023 | $13,736.00 (+9.62%) | $849,695 Land $75,120 Building $774,575 |
| 2022 | $12,531.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| 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; lenders make the official flood determination.
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