Sonoma County property record for 525 Portal St, Cotati, CA 94931
| Property Type | Warehouse, Storage |
|---|---|
| Details | 17,068 sqft · built 1989 |
| Lot Size | 1.11 acres (48,787 sqft) |
| Owner | Company Name on File |
| Tax Bill | $18,232 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 144-010-081-000 |
| Primary APN | 144-010-081-000 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 17,068 sqft Gross Area |
| 1st Floor Area | 17,068 sqft |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1989 |
| Lot Area | 48,787 sqft |
| Cooling System | None |
|---|
| Old Parcel Number | 144-010-081 |
|---|---|
| Street Address | 525 PORTAL ST |
| City | COTATI |
| State | CA |
| Zip | 94931-3023 |
| Property Category | Industrial |
| Property Type | Industrial > Warehouse, Storage |
| Local Zoning Code | M2 |
| Legal Description | 89 FM 144-010-69 & PT 82 PER TAX BOND EST |
| Legal Subdivision | PER TAX BOND EST |
| Legal Block | 3 |
| Legal Lot Number | 1 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | PETALUMA |
| Census Block Group | 3 |
| Census Block | 3006 |
| Census Tract | 151206 |
525 Portal St, an industrial property, is owned by a company.
Source: Sonoma County records, as of October 1, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 1751 FORTUNE DR, A, SAN JOSE, CA 95131-1705 |
| Owner Type | Company |
| Vesting | Company |
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 |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 525 Portal St was $18,232.
Source: Sonoma County assessment roll, as of September 1, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Cotati City |
| Unified School District | Cotati-Rohnert Park Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,588,042 (+2%) Land $353,674 Building $1,234,368 | |
| 2025 | $18,232.00 | $1,556,905 Land $346,740 Building $1,210,165 |
| 2023 | $17,717.00 (+1.75%) | $1,496,451 Land $333,277 Building $1,163,174 |
| 2022 | $17,413.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 525 Portal 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 February 15, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 5 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.
Wildfire risk around 525 Portal St is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 | CITY OF COTATI serves 7,290 people · EPA ID CA4910016 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Aug 2024 |
| Lead | Under 1 ppb (2024–2026) 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 258 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Starlink Satellite | 280 / 30 |
May also be available: AT&T, T-Mobile, Verizon.
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