Sonoma County property record for 58 Mountain Ave, Sonoma, CA 95476
| Property Type | Duplex |
|---|---|
| Details | 1 bd · 1.5 ba · 915 sqft · built 1920 |
| Lot Size | 0.17 acres (7,400 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $5,377 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 056-321-028-000 |
| Primary APN | 056-321-028-000 |
|---|---|
| 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 | 915 sqft Living Area |
| 1st Floor Area | 915 sqft |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 2006 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 7,400 sqft (0.17 acres) |
| Cooling System | None |
|---|
| Old Parcel Number | 056-321-028 |
|---|---|
| Street Address | 58 MOUNTAIN AVE |
| City | SONOMA |
| State | CA |
| Zip | 95476-3437 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R15UA |
| Legal Description | LOT 8, BLK 4, AGUA CALIENTE PARK SUBDV NO. 1 |
| Legal Subdivision | AGUA CALIENTE PARK SUB |
| Legal Block | 4 |
| Legal Lot Number | 8 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 150306 |
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 | 2563 44TH AVE, SAN FRANCISCO, CA 94116-2634 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Jul 7, 2016 |
| Transfer Doc | 0000062858 |
| Record Updated | Oct 29, 2026 |
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 | $232,846 (+2%) Land $13,728 Building $219,118 | |
| 2025 | $5,377.00 (-5.12%) | $228,281 (+4.04%) Land $13,459 Building $214,822 |
| 2023 | $5,667.00 (+0.76%) | $219,419 Land $12,938 Building $206,481 |
| 2022 | $5,624.00 |
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 | 2 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 | Low lower than 66% of the US · lower than 80% of California |
|---|---|
| Wildfire Likelihood | 0.04% 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 444 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 · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
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