Sonoma County property record for 503 W Spain St, Sonoma, CA 95476
| Property Type | Residential Vacant Land |
|---|---|
| Details | 1 bd · 1 ba · 1,203 sqft · built 2016 |
| Lot Size | 0.036 acres (1,570 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $360,000 (Apr 2017) |
| Tax Bill | $6,156 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 018-431-013-000 |
| Primary APN | 018-431-013-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 1 Bed |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 1 Room |
| Stories | 1 Story |
| Building Area | 1,203 sqft Gross Area |
| 1st Floor Area | 875 sqft |
| Year Built | Built 2016 |
|---|---|
| Effective Year Built | Effective 2017 |
| Architectural Style | Other |
| Lot Area | 1,570 sqft (0.036 acres) |
| Garage Type | Attached |
| Garage Area | 328 sqft |
| Parking Spaces | 1 Parking Space |
| Old Parcel Number | 018-431-013 |
|---|---|
| Street Address | 503 W SPAIN ST |
| City | SONOMA |
| State | CA |
| Zip | 95476-5919 |
| Property Category | Residential |
| Property Type | Vacant Land > Residential |
| Legal Description | 2017 FM PTN 127-221-007 FIFTH STREET WEST LOT 7 |
| Legal Block | 1 |
| Legal Lot Number | 7 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 1 |
| Census Block | 1008 |
| Census Tract | 150205 |
Source: Sonoma County records, as of May 6, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 503 W SPAIN ST, SONOMA, CA 95476-5919 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Apr 21, 2017 · Amount on Record |
| Deed Sale | Apr 21, 2017 · Amount on Record |
| Deed Document Number | 201730858 |
| Record Updated | Jun 8, 2026 |
Source: Sonoma County assessment roll, as of April 13, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Sonoma City |
| Unified School District | Sonoma Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $6,156.00 (+3.57%) | $417,805 (+4.04%) Land $174,085 Building $243,720 |
| 2023 | $5,944.00 (+1.97%) | $401,583 Land $167,326 Building $234,257 |
| 2022 | $5,829.00 |
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
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.02% annual chance |
| Exposure | Indirect within 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 SONOMA serves 10,619 people · EPA ID CA4910012 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jul 2024 |
| Lead | Under 1 ppb (2021–2023) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| 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 329 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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