Marin County property record for 40 Merwin Ave, Fairfax, CA 94930
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 2.5 ba · 1,901 sqft · built 1922 |
| Lot Size | 0.144 acres (6,250 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $359,000 (Aug 1997) |
| Tax Bill | $12,730 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 002-111-05 |
| Primary APN | 002-111-05 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 1,901 sqft Living Area |
| Basement Area | 924 sqft |
| Year Built | Built 1922 |
|---|---|
| Effective Year Built | Effective 1967 |
| Architectural Style | Contemporary |
| Construction Type | Frame |
| Lot Area | 6,250 sqft (0.144 acres) |
| Deck Area | 218 sqft |
| Patio Area | 424 sqft |
| Heating System | Floor/Wall Furnace |
|---|
| Street Address | 40 MERWIN AVE |
|---|---|
| City | FAIRFAX |
| State | CA |
| Zip | 94930-1614 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | LOT 36 |
| Legal Subdivision | FAIRFAX PARK MAP 01 |
| Legal Tract | 1 |
| Legal Lot Number | 36 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | ROSS VALLEY |
| Census Block Group | 1 |
| Census Block | 1005 |
| Census Tract | 114100 |
Source: Marin County records, as of July 13, 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 Record |
|---|---|
| Mailing Address | 40 MERWIN AVE, FAIRFAX, CA 94930-1614 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 20, 1997 · Amount on Record |
| Deed Sale | Aug 20, 1997 · Amount on Record |
| Deed Document Number | 199744946 |
| Last Transfer Date | May 8, 2013 |
| Transfer Doc | 0000034337 |
| Record Updated | Sep 20, 2026 |
Source: Marin County assessment roll, as of July 13, 2026
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| Municipality | Fairfax 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 |
|---|---|---|
| 2026 | $661,602 (+2%) Land $125,706 Building $535,896 | |
| 2025 | $12,730.00 (+5.26%) Homeowner's exemption | $648,632 (+4.04%) Land $123,242 Building $525,390 |
| 2023 | $12,094.00 (+1.82%) Homeowner's exemption | $623,448 Land $118,457 Building $504,991 |
| 2022 | $11,878.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 Record median of 85 policies |
| Community Rating System | Class 9 (5% premium discount) |
| Nearby Flood Policies | 85 in force |
| Nearby Flood Claims | 81 (1980–2024) |
| Claims Outside the SFHA | 18 of 81 |
| Most Recent Claim | Feb 2024 · rainfall accumulation |
| 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 66% of the US · lower than 80% of California |
|---|---|
| Wildfire Likelihood | 0.04% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 565 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
5G (outdoors only) and 4G LTE
Search by:
By searching, you agree to: Terms • Privacy • Disclosures