Sonoma County property record for 25 Halsey Ave, Petaluma, CA 94952
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 2,125 sqft · built 1948 |
| Lot Size | 0.266 acres (11,600 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $826,500 (Feb 2015) |
| Tax Bill | $11,370 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 008-256-001-000 |
| Primary APN | 008-256-001-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 2,125 sqft Living Area |
| 1st Floor Area | 2,125 sqft |
| Basement Area | 2,300 sqft |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1948 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 11,600 sqft (0.266 acres) |
| Garage Type | Detached |
| Garage Area | 520 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 008-256-001 |
|---|---|
| Street Address | 25 HALSEY AVE |
| City | PETALUMA |
| State | CA |
| Zip | 94952-4914 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | CITYPE |
| Legal Description | LT 14 MIRA-MONTE HGTS |
| Legal Subdivision | MONTE HGT |
| Legal Block | 4 |
| Legal Lot Number | 14 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | PETALUMA |
| Census Block Group | 4 |
| Census Block | 4006 |
| Census Tract | 150702 |
25 Halsey Ave is owned and occupied by two individuals who bought it in February 2015.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 25 HALSEY AVE, PETALUMA, CA 94952-4914 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 10, 2015 · Amount on File |
| Deed Sale | Feb 10, 2015 · Amount on File |
| Prior Sale | Jul 11, 2001 · Amount on File |
| Deed Document Number | 201510453 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 25 Halsey Ave was $11,370 with a homeowner's exemption.
Source: Sonoma County assessment roll, as of September 1, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Petaluma City |
| Elementary School District | Petaluma City Elementary School District (KG - 06) |
| Secondary School District | Petaluma Joint Union High School District (07 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,012,878 (+2%) Land $405,150 Building $607,728 | |
| 2025 | $11,370.00 Homeowner's exemption | $993,018 Land $397,206 Building $595,812 |
| 2023 | $10,376.00 (+0.87%) Homeowner's exemption | $954,460 Land $381,783 Building $572,677 |
| 2022 | $10,286.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 25 Halsey Ave in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 1978.
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 6 (20% premium discount) |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 3 (1978–1980) |
| Most Recent Claim | Feb 1980 · rainfall accumulation |
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 25 Halsey Ave is low, with a 0.02% annual chance of wildfire.
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 | 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 PETALUMA serves 61,427 people · EPA ID CA4910006 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jun 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 | 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 557 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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