Sonoma County property record for 636 Donner Ave, Sonoma, CA 95476
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 2,380 sqft · built 1938 |
| Lot Size | 0.258 acres (11,250 sqft) |
| Owner | Company Name on Record |
| Last Sale | $1,610,000 (Jan 2018) |
| Tax Bill | $25,385 (2025) |
| Deeds & Mortgages | Jun 2020 Mortgage Jan 2018 Transfer + 1 more |
| Flood Zone | Zone X (moderate risk) |
| APN | 018-314-005-000 |
| Primary APN | 018-314-005-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 2,380 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1938 |
|---|---|
| Effective Year Built | Effective 2008 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 11,250 sqft (0.258 acres) |
| Garage Area | 400 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 018-314-005 |
|---|---|
| Street Address | 636 DONNER AVE |
| City | SONOMA |
| State | CA |
| Zip | 95476-7132 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | PART OF LOT 76 |
| Legal Subdivision | SONOMA 02 RHO |
| Legal Block | 1 |
| Legal Lot Number | 76 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 1 |
| Census Block | 1015 |
| Census Tract | 150204 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 75 BAYWOOD AVE, SAN MATEO, CA 94402-1516 |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Jun 19, 2020 | Deed of Trust, Mortgage · Conventional Mortgage FIRST REPUBLIC BANK |
| Jan 8, 2018 | Quit Claim Deed, Transfer FIDELITY NATIONAL TITLE |
| Jan 8, 2018 | Grant Deed, Transfer FIDELITY NATIONAL TITLE |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jan 8, 2018 · Amount on Record |
| Deed Sale | Jan 8, 2018 · Amount on Record |
| Prior Sale | May 11, 2005 · Amount on Record |
| Deed Document Number | 20181174 |
| Prior Transfer Date | May 6, 1998 |
| Prior Transfer Doc | 0000050864 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 636 DONNER AVE, SONOMA, CA 95476-7132 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | OLD REPUBLIC TITLE COMPANY |
| Name | Verified Name |
|---|
| Document Number | 0000048903 |
|---|---|
| Date | Jun 19, 2020 |
| Instrument | 2020048903 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Address | SAN FRANCISCO, CA 94111 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jul 1, 2050 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.5% |
| Type Change Date | Jul 1, 2027 |
| Change Frequency | Monthly |
| Min Rate At Change | 2.95% |
| Max Rate At Change | 10.9% |
| Index | 1-Year CMT |
| Max Rate | 10.9% |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Jan 8, 2018 |
| Property Address | 636 DONNER AVE, SONOMA, CA 95476-7132 |
| Document Number | 0000001175 |
| Instrument Date | Dec 14, 2017 |
| Instrument | 1175 |
| Transaction Type | Transfer |
| Record Updated | Jan 24, 2018 |
| Title Company | FIDELITY NATIONAL TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 636 DONNER AVE SONOMA CA 954767132, SONOMA, CA 95476-7132 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Jan 8, 2018 |
| Property Address | 636 DONNER AVE, SONOMA, CA 95476-7132 |
| Document Number | 0000001174 |
| Instrument Date | Dec 14, 2017 |
| Instrument | 1174 |
| Transaction Type | Transfer |
| Record Updated | Jan 26, 2018 |
| Title Company | FIDELITY NATIONAL TITLE |
| Amount | Amount Recorded |
|---|---|
| Tax | $1,771.00 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 75 BAYWOOD AVE SAN MATEO CA 944021516, SAN MATEO, CA 94402-1516 |
Source: Sonoma County assessment roll, as of September 1, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Sonoma City |
| Unified School District | Sonoma Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $2,181,439 (+2%) Land $1,218,612 Building $962,827 | |
| 2025 | $25,385.00 (+4.07%) | $2,138,667 (+4.04%) Land $1,194,718 Building $943,949 |
| 2023 | $24,393.00 (+0.97%) | $2,055,623 Land $1,148,327 Building $907,296 |
| 2022 | $24,159.00 |
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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 15 policies |
| Nearby Flood Policies | 15 in force |
| Nearby Flood Claims | 8 (1978–2025) |
| Claims Outside the SFHA | 6 of 8 |
| Most Recent Claim | Feb 2025 · rainfall accumulation |
| Claims by Event |
|
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 SONOMA serves 10,619 people · EPA ID CA4910012 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jul 2024 |
| 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 | 1 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 579 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures