Marin County property record for 311 Richardson Dr, Mill Valley, CA 94941
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 2,091 sqft · built 1951 |
| Lot Size | 0.306 acres (13,310 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $670,000 (Oct 1998) |
| Tax Bill | $13,762 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 043-224-25 |
| Primary APN | 043-224-25 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 2,091 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | Contemporary |
| Exterior Material | Stucco |
| Roof Material | Wood Shingle |
| Lot Area | 13,310 sqft (0.306 acres) |
| Garage Area | 441 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | 903 sqft |
| Patio Area | 1,243 sqft |
| Heating System | Central |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 311 RICHARDSON DR |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-2574 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 432 |
| Legal Subdivision | STRAWBERRY MANOR 04 |
| Legal Lot Number | 432 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 125000 |
311 Richardson Dr is owner-occupied and held in a trust since April 2012.
Source: Marin County records, as of July 13, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 311 RICHARDSON DR, MILL VALLEY, CA 94941-2574 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 23, 1998 · Amount on File |
| Deed Sale | Oct 23, 1998 · Amount on File |
| Deed Document Number | 199878198 |
| Last Transfer Date | Apr 4, 2012 |
| Transfer Doc | 0000021429 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 311 Richardson Dr was $13,762 with a homeowner's exemption.
Source: Marin County assessment roll, as of July 13, 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) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,120,230 (+2%) Land $767,500 Building $352,730 | |
| 2025 | $13,762.00 Homeowner's exemption | $1,098,265 Land $752,452 Building $345,813 |
| 2023 | $13,145.00 (+3.34%) Homeowner's exemption | $1,055,628 Land $723,240 Building $332,388 |
| 2022 | $12,720.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 311 Richardson Dr in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 1982.
Source: FEMA National Flood Hazard Layer, effective October 18, 2023 · 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 | 3 in force |
| Nearby Flood Claims | 2 (1982–1986) |
| Most Recent Claim | Feb 1986 · Severe Storms & Flooding |
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.
The area around 311 Richardson Dr has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land 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 199 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T, Etheric Networks.
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