Sonoma County property record for 100 4th St, Petaluma, CA 94952
| Property Type | Commercial Office |
|---|---|
| Details | 1,076 sqft · built 1948 |
| Lot Size | 0.131 acres (5,684 sqft) |
| Owner | Company Name on Record |
| Last Sale | $252,000 (Sep 2011) |
| Tax Bill | $4,381 (2025) |
| Deeds & Mortgages | Aug 2026 Sale May 2021 Transfer + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 008-062-010-000 |
| Primary APN | 008-062-010-000 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 1,076 sqft Gross Area |
| 1st Floor Area | 1,076 sqft |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1975 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Fire Resistance | Wood or Wood & Steel Frame |
| Lot Area | 5,684 sqft (0.131 acres) |
| Cooling System | None |
|---|
| Street Address | 100 4TH ST |
|---|---|
| City | PETALUMA |
| State | CA |
| Zip | 94952-3091 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Local Zoning Code | CITYPE |
| Legal Description | 86 FM 8-062-06 CW PT 7 PT PT 11 OR 85-73927 |
| Legal Subdivision | PETALUMA |
| Legal Block | 3 |
| Legal Lot Number | 115 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | PETALUMA |
| Census Block Group | 3 |
| Census Block | 3021 |
| Census Tract | 150701 |
Source: Sonoma County records, as of August 14, 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 | 100 4TH ST, PETALUMA, CA 94952-3091 |
| Owner Type | Company |
| Vesting | Limited Liability Partnership |
| Date | Document |
|---|---|
| Aug 6, 2026 | Grant Deed, Transfer NONE LISTED ON DOCUMENT |
| May 27, 2021 | Intrafamily Transfer, Transfer |
| Nov 20, 2018 | Loan Modification, Mortgage BANK OF MARIN |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 26, 2011 · Amount on Record |
| Deed Sale | Sep 26, 2011 · Amount on Record |
| Prior Sale | Feb 17, 2009 · Amount on Record |
| Deed Document Number | 201181739 |
| Last Transfer Date | Apr 15, 2021 |
| Transfer Doc | 0000063843 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Aug 6, 2026 |
| Property Address | 100 4TH ST, PETALUMA, CA 94952-3091 |
| Document Number | 0000040163 |
| Instrument Date | Aug 3, 2026 |
| Instrument | 202640163 |
| Transaction Type | Transfer |
| Record Updated | Aug 14, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Limited Liability Partnership |
| Address | 100 4TH ST, PETALUMA, CA 94952-3091 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | May 27, 2021 |
| Property Address | 100 4TH ST, PETALUMA, CA 94952-3091 |
| Document Number | 0000063843 |
| Instrument Date | Apr 15, 2021 |
| Instrument | 2021063843 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 301 JACQUELYN LN, PETALUMA, CA 94952-5301 |
| Document Type | Loan Modification |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 100 4TH ST, PETALUMA, CA 94952-3091 |
| Document Number | 0000085413 |
| Instrument Date | Nov 20, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Jan 3, 2019 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 1553 RIO NIDO CT PETALUMA CA 949545773, PETALUMA, CA 94954-5773 |
| Document Number | 0000085413 |
|---|---|
| Date | Dec 14, 2018 |
| Instrument | 85413 |
| Name | BANK OF MARIN |
|---|---|
| Type | Bank |
| Address | NOVATO, CA 94948 |
| Amount | Amount Recorded |
|---|---|
| Term | 120 Months |
| Due | Dec 13, 2028 |
Source: Sonoma County assessment roll, as of April 13, 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 |
|---|---|---|
| 2025 | $4,381.00 (+10.72%) | $367,047 (+4.04%) Land $150,355 Building $216,692 |
| 2023 | $3,957.00 (+0.84%) | $352,796 Land $144,517 Building $208,279 |
| 2022 | $3,924.00 |
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 minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 43 units insured incl. 37 condo units |
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 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 432 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
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