Sonoma County property record for 421 Upham St, Petaluma, CA 94952
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,856 sqft · built 1915 |
| Lot Size | 0.169 acres (7,350 sqft) |
| Owner | Company Name on Record |
| Last Sale | $925,000 (Mar 2019) |
| Tax Bill | $11,887 (2025) |
| Deeds & Mortgages | Aug 2019 Mortgage Mar 2019 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 006-385-012-000 |
| Primary APN | 006-385-012-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,856 sqft Living Area |
| 1st Floor Area | 1,856 sqft |
| Basement Area | 1,440 sqft |
| Year Built | Built 1915 |
|---|---|
| Effective Year Built | Effective 1975 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 7,350 sqft (0.169 acres) |
| Garage Type | Detached |
| Garage Area | 324 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | HVAC |
|---|---|
| Heating System | Central |
| Old Parcel Number | 006-385-012 |
|---|---|
| Street Address | 421 UPHAM ST |
| City | PETALUMA |
| State | CA |
| Zip | 94952-2650 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | CITYPE |
| Legal Description | PART OF LOT 448 |
| Legal Subdivision | PETALUMA |
| Legal Block | 1 |
| Legal Lot Number | 448 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | PETALUMA |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 150800 |
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 | 421 UPHAM ST, PETALUMA, CA 94952-2650 |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Aug 12, 2019 | Quit Claim Deed, Transfer BANK OF AMERICA |
| Mar 4, 2019 | Grant Deed, Transfer FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Mar 4, 2019 · Amount on Record |
| Deed Sale | Mar 4, 2019 · Amount on Record |
| Prior Sale | Nov 16, 2012 · Amount on Record |
| Deed Document Number | 201915368 |
| Prior Transfer Date | Jul 25, 2005 |
| Prior Transfer Doc | 0000111162 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Aug 12, 2019 |
| Property Address | 421 UPHAM ST, PETALUMA, CA 94952-2650 |
| Document Number | 0000056001 |
| Instrument Date | Jun 21, 2019 |
| Instrument | 56001 |
| Transaction Type | Transfer |
| Record Updated | Aug 27, 2019 |
| Title Company | TITLE CONNECT LLC |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants in Common |
| Address | 421 UHAM ST PETALUMA CA 94952, PETALUMA, CA 94952 |
| Document Number | 56002 |
|---|---|
| Date | Aug 12, 2019 |
| Instrument | 56002 |
| Name | BANK OF AMERICA |
|---|---|
| Type | Bank |
| Address | CHARLOTTE, NC 28255 |
| Amount | Amount Recorded |
|---|---|
| Term | 360 Months |
| Due | Aug 11, 2049 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Mar 4, 2019 |
| Property Address | 421 UPHAM ST, PETALUMA, CA 94952-2650 |
| Document Number | 0000015368 |
| Instrument Date | Feb 25, 2019 |
| Instrument | 15368 |
| Transaction Type | Transfer |
| Record Updated | Mar 20, 2019 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| Amount | Amount Recorded |
|---|---|
| Tax | $1,017.50 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants in Common |
| Address | 421 UPHAM ST PETALUMA CA 949522650, PETALUMA, CA 94952-2650 |
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 | $1,052,486 (+2%) Land $420,993 Building $631,493 | |
| 2025 | $11,887.00 (+9.51%) | $1,031,850 (+4.04%) Land $412,739 Building $619,111 |
| 2023 | $10,855.00 (+0.86%) | $991,784 Land $396,713 Building $595,071 |
| 2022 | $10,762.00 |
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
| 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.
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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