Sonoma County property record for 20 Ahlstrom Dr, Cotati, CA 94931
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,552 sqft · built 1988 |
| Lot Size | 0.094 acres (4,078 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $181,500 (Nov 1997) |
| Tax Bill | $3,689 (2025) |
| Deeds & Mortgages | Jan 2022 Mortgage Feb 2017 Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 144-680-046-000 |
| Primary APN | 144-680-046-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 3 Rooms |
| Stories | 2 Stories |
| Building Area | 1,552 sqft Living Area |
| Gross Area | 1,968 sqft |
| 1st Floor Area | 744 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1988 |
|---|---|
| Effective Year Built | Effective 1988 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 4,078 sqft (0.094 acres) |
| Garage Type | Attached |
| Garage Area | 416 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 144-680-046 |
|---|---|
| Street Address | 20 AHLSTROM DR |
| City | COTATI |
| State | CA |
| Zip | 94931-5162 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | CITYCO |
| Legal Description | LAGUNA ESTATES SUB LOT 46 |
| Legal Subdivision | LAGUNA ESTATES SUB |
| Legal Block | 2 |
| Legal Lot Number | 46 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | PETALUMA |
| Census Block Group | 2 |
| Census Block | 2005 |
| Census Tract | 151204 |
Source: Sonoma County records, as of September 1, 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 Record |
|---|---|
| Mailing Address | 20 AHLSTROM DR, COTATI, CA 94931-5162 |
| Owner Type | Company |
| Vesting | Life Tenant |
| Date | Document |
|---|---|
| Jan 10, 2022 | Deed of Trust, Mortgage · Conventional Mortgage ARVEST BANK |
| Feb 13, 2017 | Deed of Trust, Mortgage · Conventional Mortgage BANC HM LNS |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 5, 1997 · Amount on Record |
| Deed Sale | Nov 5, 1997 · Amount on Record |
| Deed Document Number | 1997102750 |
| Last Transfer Date | Aug 23, 2024 |
| Transfer Doc | 0000038938 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 20 AHLSTROM DR, COTATI, CA 94931-5162 |
| Transaction Type | Mortgage |
| Record Updated | Jan 24, 2022 |
| Title Company | PLACER TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 20 AHLSTROM DR, COTATI, CA 94931-5162 |
| Document Number | 0000002064 |
|---|---|
| Date | Jan 10, 2022 |
| Instrument | 2022002064 |
| Name | ARVEST BANK |
|---|---|
| Type | Bank |
| Address | LOWELL, AR 72745 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Feb 1, 2052 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 20 AHLSTROM DR, COTATI, CA 94931-5162 |
| Document Number | 0000012831 |
| Instrument Date | Feb 13, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Mar 14, 2017 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 20 AHLSTROM DR COTATI CA 949315162, COTATI, CA 94931-5162 |
| Document Number | 0000012831 |
|---|---|
| Date | Feb 17, 2017 |
| Instrument | 12831 |
| Name | BANC HM LNS |
|---|---|
| Type | Bank |
| Address | IRVINE, CA 92612 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Feb 16, 2047 |
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 | $295,577 (+2%) Land $122,137 Building $173,440 | |
| 2025 | $3,689.00 (+3.16%) Homeowner's exemption | $289,783 (+4.04%) Land $119,743 Building $170,040 |
| 2023 | $3,576.00 (+1.85%) Homeowner's exemption | $278,533 Land $115,095 Building $163,438 |
| 2022 | $3,511.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Nearest Special Flood Hazard Area | Zone AE, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 26 policies |
| Nearby Flood Policies | 26 in force |
| Nearby Flood Claims | 1 (2012) |
| Most Recent Claim | Dec 2012 · tidal / storm surge |
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: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.8% of the US · lower than 99.8% 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 553 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T.
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