Marin County property record for 129 Richardson Dr, Mill Valley, CA 94941
| Property Type | Duplex |
|---|---|
| Details | 2 bd · 2 ba · 1,714 sqft · built 1951 |
| Lot Size | 0.13 acres (5,670 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $1,400,000 (Jul 2024) |
| Tax Bill | $19,310 (2025) |
| Deeds & Mortgages | Nov 2025 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 043-071-26 |
| Primary APN | 043-071-26 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Building Area | 1,714 sqft Living Area |
| Basement Area | 396 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1952 |
| Architectural Style | Contemporary |
| Lot Area | 5,670 sqft (0.13 acres) |
| Garage Area | 276 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | 343 sqft |
| Patio Area | 584 sqft |
| Heating System | Central |
|---|
| Street Address | 129 RICHARDSON DR |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-2413 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Subdivision | STRAWBERRY HEIGHTS 1 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 3 |
| Census Block | 3010 |
| Census Tract | 125000 |
129 Richardson Dr, a duplex, is owner-occupied and held in a trust since July 2024.
Source: Marin County records, as of July 13, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 129 RICHARDSON DR, MILL VALLEY, CA 94941-2413 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Family 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 | Jul 2, 2024 · Amount on File |
| Deed Sale | Jul 2, 2024 · Amount on File |
| Deed Document Number | 202418807 |
| Prior Transfer Date | Aug 8, 1994 |
| Prior Transfer Doc | 0000062095 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Nov 6, 2025 |
| Property Address | 129 RICHARDSON DR, MILL VALLEY, CA 94941-2413 |
| Document Number | 0000028735 |
| Map Reference | MB 6 PG 21 |
| Instrument Date | Nov 6, 2025 |
| Instrument | 2025-0028735 |
| Transaction Type | Transfer |
| Record Updated | Nov 27, 2025 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 129 RICHARDSON DR, MILL VALLEY, CA 94941-2413 |
The 2025 property tax bill for 129 Richardson Dr was $19,310.
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 | $1,428,000 (+2%) Land $856,800 Building $571,200 | |
| 2025 | $19,310.00 | $1,400,000 Land $840,000 Building $560,000 |
| 2023 | $4,463.00 (+2.95%) | $146,389 Land $38,870 Building $107,519 |
| 2022 | $4,335.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 129 Richardson Dr in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 1986.
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 | 6 in force |
| Nearby Flood Claims | 3 (1986–2021) |
| Most Recent Claim | Dec 2021 · rainfall accumulation |
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 129 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 459 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 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
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