Sonoma County property record for 4100 Rainier Ave, Santa Rosa, CA 95405
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,525 sqft · built 1976 |
| Lot Size | 0.175 acres (7,600 sqft) |
| Owner | Trust Name on File |
| Last Sale | $235,000 (Oct 1998) |
| Tax Bill | $4,095 (2025) |
| Deeds & Mortgages | Mar 2023 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 049-496-010-000 |
| Primary APN | 049-496-010-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 3 Rooms |
| Stories | 1 Story |
| Building Area | 1,525 sqft Living Area |
| Gross Area | 1,965 sqft |
| 1st Floor Area | 1,525 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1976 |
|---|---|
| Effective Year Built | Effective 1976 |
| Architectural Style | L-Shape |
| Exterior Material | Wood Siding |
| Construction Type | Wood |
| Roof Material | Wood Shingle |
| Lot Area | 7,600 sqft (0.175 acres) |
| Garage Type | Attached |
| Garage Area | 440 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | HVAC |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Old Parcel Number | 049-496-010 |
|---|---|
| Street Address | 4100 RAINIER AVE |
| City | SANTA ROSA |
| State | CA |
| Zip | 95405-8125 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | CITYSR |
| Legal Description | ANNADEL HTS SUB 1 LOT 109 |
| Legal Subdivision | ANNADEL HTS SUB |
| Legal Block | 1 |
| Legal Lot Number | 109 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SANTA ROSA |
| Census Block Group | 1 |
| Census Block | 1015 |
| Census Tract | 151504 |
4100 Rainier Ave is owner-occupied and held in a trust since October 1998.
Source: Sonoma County records, as of September 1, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 4100 RAINIER AVE, SANTA ROSA, CA 95405-8125 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Oct 14, 1998 · Amount on File |
| Deed Sale | Oct 14, 1998 · Amount on File |
| Deed Document Number | 1998119115 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Mar 28, 2023 |
| Property Address | 4100 RAINIER AVE, SANTA ROSA, CA 95405-8125 |
| Document Number | 0000012738 |
| Map Reference | MB 191 PG 19-23 |
| Instrument Date | Mar 23, 2023 |
| Instrument | 2023012738 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 4100 RAINIER AVE, SANTA ROSA, CA 95405-8125 |
The 2025 property tax bill for 4100 Rainier Ave was $4,095 with a homeowner's exemption.
Source: Sonoma County assessment roll, as of September 1, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Santa Rosa City |
| Elementary School District | Bennett Valley Union Elementary School District (KG - 06) |
| Secondary School District | Santa Rosa High School District (07 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $375,768 (+2%) Land $143,906 Building $231,862 | |
| 2025 | $4,095.00 Homeowner's exemption | $368,401 Land $141,085 Building $227,316 |
| 2023 | $3,957.00 (+4.43%) Homeowner's exemption | $354,097 Land $135,607 Building $218,490 |
| 2022 | $3,789.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4100 Rainier Ave 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.
Wildfire risk around 4100 Rainier Ave is low, with a 0.01% 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 | 0.01% 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 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 527 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| AT&T DSL | 100 / 20 |
May also be available: GeoLinks, Sonic Telecom, T-Mobile.
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