Marin County property record for 20 Chestnut Ave, Ross, CA 94957
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4 ba · 3,561 sqft · built 1924 |
| Lot Size | 1 acres (43,800 sqft) |
| Owner | 2 Company Names on File |
| Tax Bill | $9,728 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 073-301-16 |
| Primary APN | 073-301-16 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4 Baths |
| Building Area | 3,561 sqft Living Area |
| Basement Area | 779 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1924 |
|---|---|
| Effective Year Built | Effective 1945 |
| Architectural Style | Contemporary |
| Lot Area | 43,800 sqft |
| Garage Area | 576 sqft |
| Parking Spaces | 2 Parking Spaces |
| Pool Area | 612 sqft |
| Deck Area | 680 sqft |
| Patio Area | 680 sqft |
| Heating System | Central |
|---|
| Street Address | 20 CHESTNUT AVE |
|---|---|
| City | ROSS |
| State | CA |
| Zip | 94957-9648 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Subdivision | RAYMOND |
| Legal Lot Number | 83,84 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | ROSS VALLEY |
| Census Block Group | 2 |
| Census Block | 2011 |
| Census Tract | 118100 |
Source: Marin County records · APN 073-301-16
Assessment roll updated July 13, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | PO BOX 69, ROSS, CA 94957-0069 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Borrower in Default |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Nov 02, 2015 |
| Transfer Doc | 0000053169 |
| Record Updated | Sep 20, 2026 |
Source: Marin County records · Assessment roll updated July 13, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| Municipality | Ross Town |
| Elementary School District | Ross Elementary School District (KG - 08) |
| Secondary School District | Tamalpais Union High School District (09 - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $375,104 (+2%) Land $151,292 Building $223,812 | |
| 2025 | $9,728.00 (+4.87%) Homeowner's exemption | $367,750 (+4.04%) Land $148,326 Building $219,424 |
| 2023 | $9,276.00 (+6.94%) Homeowner's exemption | $353,471 Land $142,567 Building $210,904 |
| 2022 | $8,674.00 |
Source: FEMA National Flood Hazard Layer as of October 18, 2023 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 130 policies |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 130 in force |
| Nearby Flood Claims | 229 (1980–2025) |
| Claims Outside the SFHA | 17 of 229 |
| Most Recent Claim | Apr 2025 · other causes |
| Claims by Event |
|
| Wildfire Risk | Low lower than 67% of the US · lower than 81% of California |
|---|---|
| Wildfire Likelihood | 0.03% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: T-Mobile USA, Unwired.
Based on FCC filings for 255 locations within half a mile of this property.
5G (outdoors only) and 4G LTE
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | MARIN MUNICIPAL WATER DISTRICT serves 188,116 people |
|---|---|
| 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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.
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