Marin County property record for 309 Enterprise Concourse, Mill Valley, CA 94941 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 1,856 sqft · built 1964 |
| Lot Size | 0.174 acres (7,565 sqft) |
| Owner | Individual Name on File |
| Last Sale | $136,000 (Mar 1999) |
| Tax Bill | $12,787 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 200-231-05 |
| Primary APN | 200-231-05 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,856 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1964 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Contemporary |
| Exterior Material | Wood Siding |
| Construction Type | Concrete |
| Roof Material | Wood Shingle |
| Lot Area | 7,565 sqft (0.174 acres) |
| Garage Area | 554 sqft |
| Deck Area | 160 sqft |
| Patio Area | 160 sqft |
| Heating System | Central |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 309 ENTERPRISE CONCOURSE |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-4091 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | MAP F7 606 |
| Legal Subdivision | TENNESSE VLY HOMES #1 |
| Legal Lot Number | 5 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 3 |
| Census Block | 3008 |
| Census Tract | 128100 |
Source: Marin County records · APN 200-231-05
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 | Individual Name on File |
|---|---|
| Mailing Address | 1280 CARPENTER RD, OAKLEY, CA 94561-3862 |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Mar 02, 1999 · Amount on Record |
| Deed Sale | Mar 02, 1999 · Amount on Record |
| Prior Sale | Dec 10, 1997 · Amount on Record |
| Deed Document Number | 199916489 |
| 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 |
| Elementary School District | Mill Valley 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 | $559,366 (+2%) Land $200,132 Building $359,234 | |
| 2025 | $12,787.00 (-16.79%) | $548,400 (+4.04%) Land $196,209 Building $352,191 |
| 2023 | $15,368.00 (+3.84%) | $527,109 Land $188,591 Building $338,518 |
| 2022 | $14,800.00 |
Source: FEMA National Flood Hazard Layer, Marin County (06041C), updated October 18, 2023 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060411281003, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Cost | Premium on Record median of 88 individual NFIP policies nearby |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 88 in force |
| Nearby Flood Claims | 120 (1978–2026) |
| Claims Outside the SFHA | 13 of 120 |
| Most Recent Claim | Jan 2026, other causes |
| Claims By Storm |
|
| Wildfire Risk | Moderate above 46% of the US · above 27% of California |
|---|---|
| Wildfire Likelihood | About 1 in 1,351 per year |
| Exposure | Direct burnable vegetation at the parcel |
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, availability as of December 31, 2025 · Published October 2026 · based on 342 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Unwired | Fixed Wireless | 300 / 25 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: T-Mobile USA, Verizon. Availability varies by address; speeds are provider-advertised maximums, not measured.
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