Sonoma County property record for 320 Upham St, Petaluma, CA 94952
| Property Type | Duplex |
|---|---|
| Details | 2 bd · 1 ba · 1,838 sqft · built 1972 |
| Lot Size | 0.147 acres (6,400 sqft) |
| Owner | Individual Name on File |
| Last Sale | $1,125,000 (Oct 2019) |
| Tax Bill | $14,140 (2025) |
| Deeds & Mortgages | Jan 2022 Mortgage Oct 2019 Sale & Mortgage + 4 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 006-392-004-000 |
| Primary APN | 006-392-004-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,838 sqft Living Area |
| Gross Area | 2,258 sqft |
| 1st Floor Area | 1,838 sqft |
| Year Built | Built 1972 |
|---|---|
| Effective Year Built | Effective 1995 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 6,400 sqft (0.147 acres) |
| Garage Type | Attached |
| Garage Area | 420 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | None |
|---|---|
| Heating System | Central |
| Old Parcel Number | 006-392-004 |
|---|---|
| Street Address | 320 UPHAM ST |
| City | PETALUMA |
| State | CA |
| Zip | 94952-2645 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | CITYPE |
| Legal Subdivision | OFFICIAL MAP OF THE CITY OF PETALUMA |
| Legal Block | 1 |
| Legal Lot Number | 284 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | PETALUMA |
| Census Block Group | 1 |
| Census Block | 1008 |
| Census Tract | 150800 |
320 Upham St, a duplex, is owned by an individual who bought it in October 2019.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 613 NEVADA ST, SAUSALITO, CA 94965-1615 |
| Owner Type | Individual |
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 |
|---|---|
| Jan 21, 2022 | Deed of Trust, Mortgage · Conventional Mortgage LENDSURE MORTGAGE CORP |
| Oct 14, 2019 | Grant Deed, Transfer · Conventional Mortgage IMC MORTGAGE CORP |
| Oct 16, 2018 | Grant Deed, Transfer · ARM ALL WESTERN MORTGAGE INC |
| Nov 30, 2017 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Jun 26, 2017 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Apr 7, 2017 | Affidavit of Death, Transfer ATTORNEY ONLY |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Oct 14, 2019 · Amount on File |
| Deed Sale | Oct 14, 2019 · Amount on File |
| Prior Sale | Oct 16, 2018 · Amount on File |
| Deed Document Number | 201974675 |
| Prior Transfer Date | Nov 8, 2017 |
| Prior Transfer Doc | 0000092176 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 320 UPHAM ST, PETALUMA, CA 94952-2645 |
| Transaction Type | Mortgage |
| Record Updated | Feb 4, 2022 |
| Title Company | CORNERSTONE TITLE COMPANY, CORNERSTONE TITLE CO |
| Name | Verified Name |
|---|---|
| Address | 613 NEVADA ST, SAUSALITO, CA 94965-1615 |
| Document Number | 0000004694 |
|---|---|
| Date | Jan 21, 2022 |
| Instrument | 2022004694 |
| Name | LENDSURE MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Address | SAN DIEGO, CA 92128 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Feb 1, 2052 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Oct 14, 2019 |
| Property Address | 320 UPHAM ST, PETALUMA, CA 94952-2645 |
| Document Number | 0000074675 |
| Instrument Date | Oct 10, 2019 |
| Instrument | 2019074675 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2021 |
| Title Company | OLD REPUBLIC TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $3,487.50 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 613 NEVADA ST, SAUSALITO, CA 94965-1615 |
| Document Number | 0000074676 |
|---|---|
| Date | Oct 14, 2019 |
| Instrument | 2019074676 |
| Name | IMC MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Nov 1, 2049 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 5.62% |
| Type Change Date | Nov 1, 2024 |
| Change Frequency | Annually |
| Min Rate At Change | 5.62% |
| Max Rate At Change | 7.62% |
| Index | 1-Year LIBOR |
| Max Rate | 10.6% |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Oct 16, 2018 |
| Property Address | 320 UPHAM ST, PETALUMA, CA 94952-2645 |
| Document Number | 0000072073 |
| Instrument Date | Oct 8, 2018 |
| Instrument | 2018072073 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2021 |
| Title Company | OLD REPUBLIC TITLE CO |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 00000 |
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 743 ROWLAND BLVD, NOVATO, CA 94947-4647 |
| Document Number | 0000072074 |
|---|---|
| Date | Oct 16, 2018 |
| Instrument | 2018072074 |
| Name | ALL WESTERN MORTGAGE INC |
|---|---|
| Type | Mortgage Company |
| Type | ARM |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Nov 1, 2048 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 7% |
| Type Change Date | Nov 1, 2021 |
| Change Frequency | Annually |
| Min Rate At Change | 6% |
| Max Rate At Change | 9% |
| Index | 1-Year LIBOR |
| Margin | 6 |
| Max Rate | 12% |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Nov 30, 2017 |
| Property Address | 320 UPHAM ST, PETALUMA, CA 94952-2645 |
| Document Number | 0000092176 |
| Instrument Date | Nov 8, 2017 |
| Instrument | 92176 |
| Transaction Type | Transfer |
| Record Updated | Jan 3, 2018 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 1716 WEAVERLY DR PETALUMA CA 949543732, PETALUMA, CA 94954-3732 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Jun 26, 2017 |
| Property Address | 320 UPHAM ST, PETALUMA, CA 94952-2645 |
| Document Number | 0000049455 |
| Instrument Date | Jun 6, 2017 |
| Instrument | 49455 |
| Transaction Type | Transfer |
| Record Updated | Jul 7, 2017 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Separate Estate/Property |
| Address | 320 UPHAM ST PETALUMA CA 949522645, PETALUMA, CA 94952-2645 |
| Document Type | Affidavit of Death |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Apr 7, 2017 |
| Property Address | 320 UPHAM ST, PETALUMA, CA 94952-2645 |
| Document Number | 0000027140 |
| Instrument Date | Jan 30, 2017 |
| Instrument | 27140 |
| Transaction Type | Transfer |
| Record Updated | Apr 21, 2017 |
| Title Company | ATTORNEY ONLY |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 320 UPHAM ST PETALUMA CA 949522645, PETALUMA, CA 94952-2645 |
The 2025 property tax bill for 320 Upham St was $14,140.
Source: Sonoma County assessment roll, as of September 1, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Petaluma City |
| Elementary School District | Petaluma City Elementary School District (KG - 06) |
| Secondary School District | Petaluma Joint Union High School District (07 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,254,953 (+2%) Land $501,981 Building $752,972 | |
| 2025 | $14,140.00 | $1,230,347 Land $492,139 Building $738,208 |
| 2023 | $12,926.00 (+0.87%) | $1,182,574 Land $473,030 Building $709,544 |
| 2022 | $12,815.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 320 Upham St 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 320 Upham St is low, with less than 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 96% of the US · lower than 97.4% of California |
|---|---|
| Wildfire Likelihood | Under 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 PETALUMA serves 61,427 people · EPA ID CA4910006 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jun 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 | 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 714 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 in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
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