Sonoma County property record for 4580 Harmony Pl, Rohnert Park, CA 94928
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,434 sqft · built 1986 |
| Lot Size | 0.098 acres (4,278 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $740,000 (Oct 2025) |
| Tax Bill | $2,447 (2025) |
| Deeds & Mortgages | Oct 2025 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 160-440-009-000 |
| Primary APN | 160-440-009-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 3 Rooms |
| Stories | 2 Stories |
| Building Area | 1,434 sqft Living Area |
| 1st Floor Area | 1,434 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1986 |
|---|---|
| Effective Year Built | Effective 1987 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 4,278 sqft (0.098 acres) |
| Garage Area | 399 sqft |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 160-440-009 |
|---|---|
| Street Address | 4580 HARMONY PL |
| City | ROHNERT PARK |
| State | CA |
| Zip | 94928-1882 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | CITYRP |
| Legal Subdivision | COLEMAN VALLEY, UNIT 6 |
| Legal Block | 1 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | PETALUMA |
| Census Block Group | 1 |
| Census Block | 1007 |
| Census Tract | 151307 |
4580 Harmony Pl is owned and occupied by two individuals who bought it in October 2025.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4580 HARMONY PL, ROHNERT PARK, CA 94928-1882 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 | Oct 3, 2025 · Amount on File |
| Deed Sale | Oct 3, 2025 · Amount on File |
| Deed Document Number | 202547535 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Oct 3, 2025 |
| Property Address | 4580 HARMONY PL, ROHNERT PARK, CA 94928-1882 |
| Document Number | 0000047535 |
| Map Reference | MB 382 PG 34&35 |
| Instrument Date | Sep 23, 2025 |
| Instrument | 2025047535 |
| Transaction Type | Transfer |
| Record Updated | Oct 13, 2025 |
| Title Company | FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $814.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 4580 HARMONY PL # PI, PI, ROHNERT PARK, CA 94928-1882 |
| Document Number | 0000047536 |
|---|---|
| Date | Oct 3, 2025 |
| Instrument | 2025047536 |
| Name | GUILD MORTGAGE CO |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Oct 1, 2055 |
The 2025 property tax bill for 4580 Harmony Pl was $2,447.
Source: Sonoma County assessment roll, as of September 1, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Rohnert Park City |
| Unified School District | Cotati-Rohnert Park Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $740,000 (+268.03%) Land $296,000 Building $444,000 | |
| 2025 | $2,447.00 | $201,070 Land $70,272 Building $130,798 |
| 2023 | $2,381.00 (+1.67%) | $193,265 Land $67,545 Building $125,720 |
| 2022 | $2,342.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 4580 Harmony Pl in Zone X, an area of minimal flood risk.
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.
Wildfire risk around 4580 Harmony Pl 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 | 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 ROHNERT PARK serves 43,821 people · EPA ID CA4910014 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Nov 2025 |
| Lead | Under 1 ppb (2023–2025) 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 709 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 |
| AT&T DSL | 100 / 20 |
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