Marin County property record for 45 Ross Ave, San Anselmo, CA 94960
| Property Type | Duplex |
|---|---|
| Details | 5,719 sqft · built 1938 |
| Lot Size | 0.378 acres (16,500 sqft) |
| Owner | Company Name on File |
| Last Sale | $1,995,000 (Jul 2023) |
| Tax Bill | $26,527 (2022) |
| Deeds & Mortgages | Aug 2019 Mortgage Aug 2019 Mortgage |
| Flood Zone | Zone AE (high risk) |
| APN | 007-284-08 |
| Primary APN | 007-284-08 |
|---|
| Units | 2 Units |
|---|---|
| Building Area | 5,719 sqft Total Area |
| Year Built | Built 1938 |
|---|---|
| Lot Area | 16,500 sqft (0.378 acres) |
| Street Address | 45 ROSS AVE |
|---|---|
| City | SAN ANSELMO |
| State | CA |
| Zip | 94960-2810 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | CITY/MUNI/TWP:SAN ANSELMO |
| Legal Subdivision | SUNNY-SIDE |
| Jurisdiction | MARIN CA |
| Township / Civil Division | ROSS VALLEY |
| Census Block Group | 4 |
| Census Block | 4012 |
| Census Tract | 117000 |
45 Ross Ave, a duplex, is owned by a company that bought it in July 2023.
Source: Marin County records, as of July 19, 2023
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 41 ROSS AVE, SAN ANSELMO, CA 94960-2810 |
| Owner Type | Company |
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 |
|---|---|
| Aug 1, 2019 | Deed of Trust, Mortgage WILSON LAURA J 2019 TRUST (IT) |
| Aug 1, 2019 | Deed of Trust, Mortgage NOT AVAILABLE |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jul 7, 2023 · Amount on File |
| Deed Sale | Jul 7, 2023 · Amount on File |
| Prior Sale | Apr 21, 2023 · Amount on File |
| Deed Document Number | 2023-0016958 |
| Record Updated | Jun 7, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARIN CA |
| Property Address | 45 ROSS AVE, SAN ANSELMO, CA 94960-2810 |
| Document Number | 0000027619 |
| Instrument Date | Aug 1, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Aug 14, 2019 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|---|
| Relationship | Limited Partnership |
| Address | 101 LARKSR LANDINCIRCLE #220 LARKSPUR CA 94939, 220, LARKSPUR, CA 94939 |
| Document Number | 0000027619 |
|---|---|
| Date | Aug 5, 2019 |
| Instrument | 27619 |
| Name | WILSON LAURA J 2019 TRUST (IT) |
|---|---|
| Address | 101 LARKSPUR LANDING CIR, LARKSPUR, CA 94939-1746 |
| Amount | Amount on Record |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARIN CA |
| Property Address | 45 ROSS AVE, SAN ANSELMO, CA 94960-2810 |
| Document Number | 0000027620 |
| Instrument Date | Aug 1, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Aug 16, 2019 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|---|
| Relationship | Limited Partnership |
| Address | 101 LARKSPUR LANDING CIR #220 LARKSPUR CA 949391750, 220, LARKSPUR, CA 94939-1750 |
Source: Marin County assessment roll, as of July 1, 2022
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| Municipality | San Anselmo Town |
| Elementary School District | Ross Valley Elementary School District (KG - 08) |
| Secondary School District | Tamalpais Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2022 | $26,527.00 | $1,886,487 Land $696,487 Building $1,190,000 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 45 Ross Ave in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective October 18, 2023 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on File median of 110 individual policies |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 145 units insured incl. 35 condo units |
| Nearby Flood Claims | 99 (1980–2023) |
| Claims Outside the SFHA | 14 of 99 |
| Most Recent Claim | Mar 2023 · Severe Storm And Flooding |
| 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.
Wildfire risk around 45 Ross 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 | Indirect within 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 | MARIN MUNICIPAL WATER DISTRICT serves 188,116 people · EPA ID CA2110002 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Aug 2023 |
| Lead | Under 1 ppb (2019–2021) 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 626 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 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Unwired.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures