Sonoma County property record for 421 Semillon Ln, Santa Rosa, CA 95403
| Property Type | Condominium |
|---|---|
| Details | 3 bd · 2.5 ba · 1,884 sqft · built 2022 |
| Lot Size | 0.043 acres (1,884 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $750,000 (Jan 2024) |
| Tax Bill | $8,736 (2025) |
| Deeds & Mortgages | Jan 2024 Sale & Mortgage Jan 2024 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 173-850-063-000 |
| Primary APN | 173-850-063-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Stories | 3 Stories |
| Building Area | 1,884 sqft Living Area |
| Gross Area | 2,365 sqft |
| Year Built | Built 2022 |
|---|---|
| Effective Year Built | Effective 2023 |
| Architectural Style | Condo/Apartment |
| Lot Area | 1,884 sqft (0.043 acres) |
| Garage Type | Attached |
| Garage Area | 481 sqft |
| Parking Spaces | 2 Parking Spaces |
| Old Parcel Number | 173-850-063 |
|---|---|
| Street Address | 421 SEMILLON LN |
| City | SANTA ROSA |
| State | CA |
| Zip | 95403-2886 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Local Zoning Code | PC |
| Legal Description | 2022 ROUND BARN VILLAGE CONDO BLDG 20 UNIT 119 |
| Legal Subdivision | ROUND BARN VILLAGE CONDO |
| Legal Block | 2 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SANTA ROSA |
| Census Block Group | 2 |
| Census Block | 2026 |
| Census Tract | 152402 |
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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 421 SEMILLON LN, SANTA ROSA, CA 95403-2886 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Date | Document |
|---|---|
| Jan 2, 2024 | Grant Deed, Transfer · Conventional Mortgage US BANK NA |
| Jan 2, 2024 | Grant Deed, Transfer · Conventional Mortgage US BANK NA |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 2, 2024 · Amount on Record |
| Deed Sale | Jan 2, 2024 · Amount on Record |
| Deed Document Number | 2024140 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Jan 2, 2024 |
| Property Address | 421 SEMILLON LN, SANTA ROSA, CA 95403-2886 |
| Document Number | 0000000140 |
| Map Reference | MB 816 PG 2-6 |
| Instrument Date | Oct 20, 2023 |
| Instrument | 2024000140 |
| Transaction Type | Transfer |
| Record Updated | Jan 24, 2024 |
| Title Company | FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $2,325.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 421 SEMILLON LN, SANTA ROSA, CA 95403-2886 |
| Document Number | 0000000141 |
|---|---|
| Date | Jan 2, 2024 |
| Instrument | 2024000141 |
| Name | US BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jan 1, 2054 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Jan 2, 2024 |
| Property Address | 421 SEMILLON LN, SANTA ROSA, CA 95403-2886 |
| Document Number | 0000000140 |
| Map Reference | MB 816 PG 2-6 |
| Instrument Date | Oct 20, 2023 |
| Instrument | 2024000140 |
| Transaction Type | Transfer |
| Record Updated | Feb 1, 2024 |
| Title Company | FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $2,325.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 421 SEMILLON LN, SANTA ROSA, CA 95403-2886 |
| Document Number | 0000000141 |
|---|---|
| Date | Jan 2, 2024 |
| Instrument | 2024000141 |
| Name | US BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jan 1, 2054 |
Source: Sonoma County assessment roll, as of September 1, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Santa Rosa City |
| Elementary School District | Santa Rosa Elementary School District (KG - 06) |
| Secondary School District | Santa Rosa High School District (07 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $780,288 (+2%) Land $234,090 Building $546,198 | |
| 2025 | $8,736.00 (+1,164.25%) | $764,989 (+1,236.72%) Land $229,500 Building $535,489 |
| 2023 | $691.00 (+6.47%) | $57,229 Land $57,229 |
| 2022 | $649.00 |
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.
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 | 1 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 96% of the US · lower than 97.4% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 SANTA ROSA serves 178,452 people · EPA ID CA4910009 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Oct 2023 |
| Lead | 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 280 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Verizon.
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