Sonoma County property record for 423 Haydon St, Healdsburg, CA 95448
| Property Type | Duplex |
|---|---|
| Details | 3 bd · 2 ba · 1,946 sqft · built 1860 |
| Lot Size | 0.238 acres (10,362 sqft) |
| Owner | Company Name on Record |
| Last Sale | $1,325,000 (May 2009) |
| Tax Bill | $21,717 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 002-271-022-000 |
| Primary APN | 002-271-022-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 3 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 1,946 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1860 |
|---|---|
| Effective Year Built | Effective 2000 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 10,362 sqft (0.238 acres) |
| Cooling System | None |
|---|
| Street Address | 423 HAYDON ST |
|---|---|
| City | HEALDSBURG |
| State | CA |
| Zip | 95448-4413 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | CITYHE |
| Legal Description | W 1/2 LOT 11 HAYDONS EXTENSION |
| Legal Subdivision | HAYDONS EXTENSION TO HEALDSBURG |
| Legal Block | 3 |
| Legal Lot Number | 11 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | HEALDSBURG |
| Census Block Group | 3 |
| Census Block | 3013 |
| Census Tract | 153902 |
Source: Sonoma County records, as of April 13, 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 | 3685 W DRY CREEK RD, HEALDSBURG, CA 95448-9170 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 26, 2009 · Amount on Record |
| Deed Sale | May 26, 2009 · Amount on Record |
| Prior Sale | Oct 8, 2003 · Amount on Record |
| Deed Document Number | 200949693 |
| Last Transfer Date | Oct 6, 2010 |
| Transfer Doc | 0000087650 |
| Record Updated | Jun 8, 2026 |
Source: Sonoma County assessment roll, as of April 13, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Healdsburg City |
| Unified School District | Healdsburg Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $21,717.00 (+5.18%) | $1,857,301 (+4.04%) Land $450,710 Building $1,406,591 |
| 2023 | $20,647.00 (+1.04%) | $1,785,181 Land $433,209 Building $1,351,972 |
| 2022 | $20,434.00 |
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 |
| Nearby Flood Policies | 4 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 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% 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 HEALDSBURG serves 10,972 people · EPA ID CA4910005 |
|---|---|
| Water Source | Groundwater influenced by surface water |
| 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 541 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
May also be available: AT&T, GeoLinks, T-Mobile.
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