Marin County property record for 359 Richardson Way, Mill Valley, CA 94941
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 4 ba · 4,433 sqft · built 1990 |
| Lot Size | 1.02 acres (44,800 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $3,500,000 (Mar 2025) |
| Tax Bill | $43,645 (2025) |
| Deeds & Mortgages | Apr 2026 Mortgage Aug 2021 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 049-171-32 |
| Primary APN | 049-171-32 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Building Area | 4,433 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1990 |
|---|---|
| Effective Year Built | Effective 1990 |
| Architectural Style | Contemporary |
| Lot Area | 44,800 sqft |
| Garage Area | 864 sqft |
| Parking Spaces | 3 Parking Spaces |
| Deck Area | 640 sqft |
| Patio Area | 640 sqft |
| Heating System | Central |
|---|
| Street Address | 359 RICHARDSON WAY |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-4071 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | PARCEL MAPS 20 PG 17 |
| Legal Subdivision | TAMALPAIS VLY 01 |
| Legal Block | AD |
| Legal Lot Number | 8-11 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 3 |
| Census Block | 3008 |
| Census Tract | 128100 |
359 Richardson Way is owned and occupied by two individuals who bought it in March 2025.
Source: Marin County records, as of July 13, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 110 MORNING SUN AVE, MILL VALLEY, CA 94941-4106 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Apr 2, 2026 | Deed of Trust, Mortgage · Conventional Mortgage BMO HARRIS BANK |
| Aug 11, 2021 | Grant Deed, Transfer · Conventional Mortgage FIRST REPUBLIC BANK |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 14, 2025 · Amount on File |
| Deed Sale | Mar 14, 2025 · Amount on File |
| Prior Sale | Aug 11, 2021 · Amount on File |
| Deed Document Number | 20255805 |
| Prior Transfer Date | Jun 5, 2013 |
| Prior Transfer Doc | 0000039226 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Apr 2, 2026 |
| Property Address | 359 RICHARDSON WAY, MILL VALLEY, CA 94941-4071 |
| Document Number | 0000009692 |
| Instrument Date | Mar 19, 2026 |
| Instrument | 20269692 |
| Transaction Type | Mortgage |
| Record Updated | Jul 12, 2026 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Community Property, 149 |
| Address | 359 RICHARDSON WAY, MILL VALLEY, CA 94941-4071 |
| Investor | Possibly a Property Investor |
| Document Number | 0000009692, |
|---|---|
| Date | Apr 2, 2026 |
| Instrument | 20269692 |
| Name | BMO HARRIS BANK |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Apr 1, 2056 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 5.25% |
| Initial Type | Adjustable Rate |
| Adjustable | Adjustable Rate Rider |
| Max Rate | -1% |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Aug 11, 2021 |
| Property Address | 359 RICHARDSON WAY, MILL VALLEY, CA 94941-4071 |
| Document Number | 0000051027 |
| Map Reference | MB 20 PG 17 |
| Instrument Date | Jul 30, 2021 |
| Instrument | 2021-0051027 |
| Transaction Type | Transfer |
| Record Updated | Aug 26, 2021 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $3,355.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 359 RICHARDSON WAY, MILL VALLEY, CA 94941-4071 |
| Document Number | 0000051028 |
|---|---|
| Date | Aug 11, 2021 |
| Instrument | 2021-0051028 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Sep 1, 2051 |
The 2025 property tax bill for 359 Richardson Way was $43,645 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 | $3,610,000 (+9.42%) Land $2,040,000 Building $1,570,000 | |
| 2025 | $43,645.00 | $3,299,084 Land $1,857,100 Building $1,441,984 |
| 2023 | $40,913.00 (+2.3%) | $3,111,000 Land $1,785,000 Building $1,326,000 |
| 2022 | $39,994.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 359 Richardson Way in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 88 policies |
| 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 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.
Wildfire risk around 359 Richardson Way is moderate, ranking above 51% of the US, with a 0.1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 51% of the US · lower than 69% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Direct burnable vegetation |
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 436 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Unwired, Verizon.
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