Marin County property record for 312 Richardson Dr, Mill Valley, CA 94941
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,503 sqft · built 1951 |
| Lot Size | 0.267 acres (11,645 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,399,000 (May 2019) |
| Tax Bill | $26,086 (2025) |
| Deeds & Mortgages | Jun 2021 Line of Credit May 2019 Sale & Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 043-224-09 |
| Primary APN | 043-224-09 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Building Area | 2,503 sqft Living Area |
| Basement Area | 38 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1989 |
| Architectural Style | Contemporary |
| Lot Area | 11,645 sqft (0.267 acres) |
| Garage Area | 227 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | 976 sqft |
| Patio Area | 147 sqft |
| Heating System | Central |
|---|
| Street Address | 312 RICHARDSON DR |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-2520 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Subdivision | STRAWBERRY MANOR 04 |
| Legal Lot Number | 431 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 125000 |
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 Individual Names on Record |
|---|---|
| Mailing Address | 312 RICHARDSON DR, MILL VALLEY, CA 94941-2520 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Date | Document |
|---|---|
| Jun 9, 2021 | Deed of Trust, Mortgage · Line of Credit QUORUM FEDERAL CU |
| May 24, 2019 | Grant Deed, Transfer · ARM FIRST REPUBLIC BANK |
| Mar 22, 2019 | Affidavit of Death, Transfer ATTORNEY ONLY |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 24, 2019 · Amount on Record |
| Deed Sale | May 24, 2019 · Amount on Record |
| Deed Document Number | 201917851 |
| Prior Transfer Date | Nov 18, 1996 |
| Prior Transfer Doc | 0000063735 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARIN CA |
| Property Address | 312 RICHARDSON DR, MILL VALLEY, CA 94941-2520 |
| Transaction Type | Mortgage |
| Record Updated | Jun 23, 2021 |
| Title Company | SERVICELINK |
| Name | Verified Name |
|---|---|
| Address | 312 RICHARDSON DR, MILL VALLEY, CA 94941-2520 |
| Document Number | 0000037881 |
|---|---|
| Date | Jun 9, 2021 |
| Instrument | 2021-0037881 |
| Name | QUORUM FEDERAL CU |
|---|---|
| Type | Credit Union |
| Address | PURCHASE, NY 10577 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jul 1, 2051 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | May 24, 2019 |
| Property Address | 312 RICHARDSON DR, MILL VALLEY, CA 94941-2520 |
| Document Number | 0000017851 |
| Map Reference | VOL 7 PG 10 |
| Instrument Date | May 21, 2019 |
| Instrument | 2019-0017851 |
| Transaction Type | Transfer |
| Record Updated | Aug 13, 2021 |
| Title Company | FIRST AMERICAN TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 123 CASCADE DR, MILL VALLEY, CA 94941-2677 |
| Document Number | 0000017852 |
|---|---|
| Date | May 24, 2019 |
| Instrument | 2019-0017852 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Type | ARM |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jun 1, 2049 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.95% |
| Adjustable | Adjustable Rate Rider |
| Type Change Date | Jun 1, 2029 |
| Change Frequency | Monthly |
| Min Rate At Change | 2.95% |
| Index | Other |
| Max Rate | 10.9% |
| Document Type | Affidavit of Death |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Mar 22, 2019 |
| Property Address | 312 RICHARDSON DR, MILL VALLEY, CA 94941-2520 |
| Document Number | 0000009075 |
| Instrument Date | Mar 18, 2019 |
| Instrument | 9075 |
| Transaction Type | Transfer |
| Record Updated | Apr 2, 2019 |
| Title Company | ATTORNEY ONLY |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 1202 LINDEN RD PRESCOTT AZ 863034911, PRESCOTT, AZ 86303-4911 |
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 | $2,039,492 (+2%) Land $1,137,810 Building $901,682 | |
| 2025 | $26,086.00 (+5.31%) | $1,999,505 (+4.04%) Land $1,115,500 Building $884,005 |
| 2023 | $24,771.00 (+3.56%) | $1,921,875 Land $1,072,190 Building $849,685 |
| 2022 | $23,919.00 |
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 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.
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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