Sonoma County property record for 644 Mill St, Santa Rosa, CA 95404
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 942 sqft · built 1918 |
| Lot Size | 0.109 acres (4,758 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $540,000 (Jun 2024) |
| Tax Bill | $6,308 (2025) |
| Deeds & Mortgages | Apr 2021 Mortgage Jul 2018 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 009-263-003-000 |
| Primary APN | 009-263-003-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 2 Rooms |
| Stories | 1 Story |
| Building Area | 942 sqft Living Area |
| 1st Floor Area | 942 sqft |
| Year Built | Built 1918 |
|---|---|
| Effective Year Built | Effective 1924 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 4,758 sqft (0.109 acres) |
| Garage Area | 360 sqft |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 009-263-003 |
|---|---|
| Street Address | 644 MILL ST |
| City | SANTA ROSA |
| State | CA |
| Zip | 95404-5084 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | CITYSR |
| Legal Description | MAP D1 141 |
| Legal Subdivision | WHEELERS ADD 02 |
| Legal Block | 3 |
| Legal Lot Number | 140 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SANTA ROSA |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 151900 |
644 Mill St is owned and occupied by two individuals who bought it in June 2024.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 644 MILL ST, SANTA ROSA, CA 95404-5084 |
| 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.
| Date | Document |
|---|---|
| Apr 30, 2021 | Deed of Trust, Mortgage · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Jul 3, 2018 | Intrafamily Transfer, Transfer · Conventional Mortgage FINANCE OF AMERICA MORTGAGE LLC |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 26, 2024 · Amount on File |
| Deed Sale | Jun 26, 2024 · Amount on File |
| Prior Sale | May 13, 2011 · Amount on File |
| Deed Document Number | 202427987 |
| Prior Transfer Date | Jun 27, 2018 |
| Prior Transfer Doc | 0000047458 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 644 MILL ST, SANTA ROSA, CA 95404-5084 |
| Transaction Type | Mortgage |
| Record Updated | Jul 25, 2022 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Address | 4563 HESSEL RD, SEBASTOPOL, CA 95472-6268 |
| Document Number | 0000053539 |
|---|---|
| Date | Apr 30, 2021 |
| Instrument | 2021053539 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | PONTIAC, MI 48341 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | May 1, 2051 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Jul 3, 2018 |
| Property Address | 644 MILL ST, SANTA ROSA, CA 95404-5084 |
| Document Number | 0000047458 |
| Instrument Date | Jun 27, 2018 |
| Instrument | 2018047458 |
| Transaction Type | Transfer |
| Record Updated | Jul 25, 2022 |
| Title Company | FIDELITY NATIONAL TITLE CO |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 00000 |
| Name | Verified Name |
|---|---|
| Address | 644 MILL ST, SANTA ROSA, CA 95404-5084 |
| Document Number | 0000047459 |
|---|---|
| Date | Jul 3, 2018 |
| Instrument | 2018047459 |
| Name | FINANCE OF AMERICA MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Jul 1, 2048 |
The 2025 property tax bill for 644 Mill St was $6,308.
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 | $561,815 (+2%) Land $220,564 Building $341,251 | |
| 2025 | $6,308.00 | $550,800 Land $216,240 Building $334,560 |
| 2023 | $2,634.00 (+6.73%) Homeowner's exemption | $232,729 Land $92,352 Building $140,377 |
| 2022 | $2,468.00 |
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 644 Mill St in Zone X, an area of minimal flood risk.
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.
The area around 644 Mill St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 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 733 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 |
May also be available: GeoLinks.
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