Sonoma County property record for 18399 Half Moon St, Sonoma, CA 95476
| Property Type | Rural Home |
|---|---|
| Details | 1 bd · 1.5 ba · 832 sqft · built 1982 |
| Lot Size | 3.38 acres (147,668 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $7,607 (2025) |
| Deeds & Mortgages | Jan 2017 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 127-540-032-000 |
| Primary APN | 127-540-032-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 1 Bed |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 1 Room |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 832 sqft Living Area |
| 1st Floor Area | 832 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1982 |
|---|---|
| Effective Year Built | Effective 2001 |
| Construction Type | Wood |
| Lot Area | 147,668 sqft |
| Garage Type | Carport |
| Garage Area | 432 sqft |
| Carport | Carport |
| Carport Area | 432 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 127-540-032 |
|---|---|
| Street Address | 18399 HALF MOON ST |
| City | SONOMA |
| State | CA |
| Zip | 95476-4865 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Rural Home |
| Local Zoning Code | AR15 |
| Legal Description | 76 FM 127-051-45 PT 127-540-33 34 35 PM 4744 PCL 1 |
| Legal Block | 2 |
| Legal Lot Number | 1 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 150206 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 431 PAYRAN ST, PETALUMA, CA 94952-5908 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Dec 2, 2002 |
| Transfer Doc | 0000195615 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 18399 HALF MOON ST, SONOMA, CA 95476-4865 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | FIRST AMERICAN TITLE CO |
| Name | Verified Name |
|---|
| Document Number | 0000007649 |
|---|---|
| Date | Jan 30, 2017 |
| Instrument | 2017007649 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Feb 1, 2047 |
Source: Sonoma County assessment roll, as of September 1, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Unified School District | Sonoma Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $635,723 (+2%) Land $167,188 Building $468,535 | |
| 2025 | $7,607.00 (+3.86%) Homeowner's exemption | $623,259 (+4.04%) Land $163,910 Building $459,349 |
| 2023 | $7,324.00 (+2.72%) Homeowner's exemption | $599,060 Land $157,547 Building $441,513 |
| 2022 | $7,130.00 |
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 minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 3 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 57% of the US · lower than 66% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Direct burnable vegetation |
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 | SONOMA RANCH MUTUAL WATER COMPANY private · serves 151 people · EPA ID CA4900843 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Oct 2022 |
| Lead | Under 1 ppb (2025) action level 15 ppb |
| Copper | 2.84 mg/L (2021–2023) action level 1.3 mg/L |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Lead service line inventory currently in violation since Oct 2024 |
| Monitoring and Reporting | 1 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 22 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 1,200 / 35 |
| Starlink Satellite | 280 / 30 |
May also be available: AT&T.
5G (outdoors only) and 4G LTE
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