Sonoma County property record for 903 Madrone Ave, Cotati, CA 94931 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 800 sqft · built 1909 |
| Lot Size | 2.55 acres (111,078 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $11,171 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 046-421-024-000 |
| Primary APN | 046-421-024-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 800 sqft Living Area |
| 1st Floor Area | 800 sqft |
| Year Built | Built 1909 |
|---|---|
| Effective Year Built | Effective 1967 |
| Construction Type | Wood |
| Lot Area | 111,078 sqft (2.55 acres) |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 046-421-024 |
|---|---|
| Street Address | 903 MADRONE AVE |
| City | COTATI |
| State | CA |
| Zip | 94931-4139 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | 78 FORM 46-421-21 & PT TO PT 25 MS5742 OR3277-623 |
| Legal Block | 2 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | PETALUMA |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 151206 |
Source: Sonoma County records · APN 046-421-024-000
Assessment roll updated April 13, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 477 RONSHEIMER RD, PENNGROVE, CA 94951-8638 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Aug 15, 2024 |
| Transfer Doc | 0000038634 |
| Record Updated | Sep 20, 2026 |
Source: Sonoma County records · Assessment roll updated April 13, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Unified School District | Cotati-Rohnert Park 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 |
|---|---|---|
| 2025 | $11,171.00 (+631.57%) | $936,360 (+921.01%) Land $442,170 Building $494,190 |
| 2023 | $1,527.00 (+1.87%) | $91,709 Land $45,279 Building $46,430 |
| 2022 | $1,499.00 |
Source: FEMA National Flood Hazard Layer, Sonoma County (06097C), updated February 15, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060971512062, 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 |
| Nearby Flood Policies | 1 in force |
| 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 76 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Verizon | Fixed Wireless | 300 / 20 |
| Starlink | Satellite (low-earth orbit) | 280 / 30 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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