Sonoma County property record for 18857 Robinson Rd, Sonoma, CA 95476
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,798 sqft · built 1989 |
| Lot Size | 0.161 acres (7,000 sqft) |
| Owner | Trust Name on File |
| Last Sale | $220,000 (Nov 1988) |
| Tax Bill | $6,654 (2025) |
| Deeds & Mortgages | Jan 2021 Transfer Jan 2021 Transfer + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 127-091-044-000 |
| Primary APN | 127-091-044-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 3 Rooms |
| Stories | 2 Stories |
| Building Area | 1,798 sqft Living Area |
| 1st Floor Area | 966 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1989 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 7,000 sqft (0.161 acres) |
| Garage Area | 420 sqft |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 127-091-044 |
|---|---|
| Street Address | 18857 ROBINSON RD |
| City | SONOMA |
| State | CA |
| Zip | 95476-4655 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1B8FRZN |
| Legal Description | 89 FM PT OF 127-091-08 OR 88-65271 PM 87-587 |
| Legal Subdivision | PARCEL MAP NO 87 587 |
| Legal Block | 2 |
| Legal Lot Number | 4 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 2 |
| Census Block | 2018 |
| Census Tract | 150205 |
18857 Robinson Rd is held in a trust since January 2021.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 18857 ROBINSON RD, SONOMA, CA 95476-4655 |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Jan 21, 2021 | Intrafamily Transfer, Transfer |
| Jan 21, 2021 | Intrafamily Transfer, Transfer |
| Mar 25, 2019 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Nov 4, 1988 · Amount on File |
| Deed Sale | Nov 4, 1988 · Amount on File |
| Deed Document Number | 198894818 |
| Last Transfer Date | Jan 7, 2021 |
| Transfer Doc | 0000006748 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Jan 21, 2021 |
| Property Address | 18857 ROBINSON RD, SONOMA, CA 95476-4655 |
| Document Number | 0000006748 |
| Map Reference | MB 421 PG 39&40 |
| Instrument Date | Jan 7, 2021 |
| Instrument | 2021006748 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2021 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 18857 ROBINSON RD, 18857, SONOMA, CA 95476-4655 |
| Name | Verified Name |
|---|
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Jan 21, 2021 |
| Property Address | 18857 ROBINSON RD, SONOMA, CA 95476-4655 |
| Document Number | 0000006749 |
| Map Reference | MB 421 PG 39&40 |
| Instrument Date | Jan 7, 2021 |
| Instrument | 2021006749 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2021 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Irrevocable Trust |
| Address | 846 BROADWAY, SONOMA, CA 95476-7013 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Mar 25, 2019 |
| Property Address | 18857 ROBINSON RD, SONOMA, CA 95476-4655 |
| Document Number | 0000019688 |
| Instrument Date | Mar 19, 2019 |
| Instrument | 19688 |
| Transaction Type | Transfer |
| Record Updated | Jan 14, 2020 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Irrevocable Trust |
| Address | 18857 ROBINSON RD SONOMA CA 954764655, SONOMA, CA 95476-4655 |
The 2025 property tax bill for 18857 Robinson Rd was $6,654.
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 | $421,086 (+2%) Land $133,977 Building $287,109 | |
| 2025 | $6,654.00 | $412,830 Land $131,350 Building $281,480 |
| 2023 | $6,345.00 (+1.81%) | $396,800 Land $126,250 Building $270,550 |
| 2022 | $6,232.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 18857 Robinson Rd in Zone X, an area of minimal flood risk.
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.
Wildfire risk around 18857 Robinson Rd is low, with a 0.03% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 66% of the US · lower than 80% of California |
|---|---|
| Wildfire Likelihood | 0.03% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 | VALLEY OF THE MOON WATER DISTRICT serves 23,140 people · EPA ID CA4910013 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Sep 2022 |
| 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 477 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 |
| AT&T DSL | 100 / 20 |
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