Marin County property record for 12 Alturas Way, Mill Valley, CA 94941
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,380 sqft · built 1956 |
| Lot Size | 0.11 acres (4,800 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,550,000 (Mar 2026) |
| Tax Bill | $17,177 (2025) |
| Deeds & Mortgages | Mar 2026 Sale & Mortgage Nov 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 050-013-11 |
| Primary APN | 050-013-11 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 1,380 sqft Living Area |
| Basement Area | 240 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1956 |
|---|---|
| Effective Year Built | Effective 1975 |
| Architectural Style | Contemporary |
| Roof Material | Tar & Gravel |
| Lot Area | 4,800 sqft (0.11 acres) |
| Deck Area | 668 sqft |
| Patio Area | 668 sqft |
| Heating System | Central |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 12 ALTURAS WAY |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-4409 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | MAP E5 606 |
| Legal Subdivision | MILL VLY TERS |
| Legal Block | 1 |
| Legal Lot Number | 16 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 3 |
| Census Block | 3008 |
| Census Tract | 128200 |
12 Alturas Way is owned and occupied by two individuals who bought it in March 2026.
Source: Marin County records, as of July 13, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 12 ALTURAS WAY, MILL VALLEY, CA 94941-4409 |
| 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 |
|---|---|
| Mar 23, 2026 | Grant Deed, Transfer · Conventional Mortgage SIMPLE MORTGAGE |
| Nov 30, 2020 | Deed of Trust, Mortgage · Conventional Mortgage JPMORGAN CHASE BANK NA |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 23, 2026 · Amount on File |
| Deed Sale | Mar 23, 2026 · Amount on File |
| Prior Sale | Apr 12, 2013 · Amount on File |
| Deed Document Number | 20267470 |
| Prior Transfer Date | May 18, 2004 |
| Prior Transfer Doc | 0000044786 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | MARIN CA |
| Recording Date | Mar 23, 2026 |
| Property Address | 12 ALTURAS WAY, MILL VALLEY, CA 94941-4409 |
| Document Number | 0000007470 |
| Map Reference | VOL 5 PG 11 |
| Instrument Date | Mar 11, 2026 |
| Instrument | 2026-0007470 |
| Transaction Type | Transfer |
| Record Updated | Apr 8, 2026 |
| Title Company | FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,705.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 12 ALTURAS WAY, MILL VALLEY, CA 94941-4409 |
| Document Number | 0000007471 |
|---|---|
| Date | Mar 23, 2026 |
| Instrument | 2026-0007471 |
| Name | SIMPLE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Apr 1, 2056 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARIN CA |
| Property Address | 12 ALTURAS WAY, MILL VALLEY, CA 94941-4409 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | AMROCK TITLE CALIFORNIA INC |
| Name | Verified Name |
|---|---|
| Address | 12 ALTURAS WAY, MILL VALLEY, CA 94941-4409 |
| Document Number | 0000059931 |
|---|---|
| Date | Nov 30, 2020 |
| Instrument | 2020-0059931 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Address | COLUMBUS, OH 43240 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Dec 1, 2050 |
The 2025 property tax bill for 12 Alturas Way was $17,177.
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 | $984,704 (+2%) Land $609,160 Building $375,544 | |
| 2025 | $17,177.00 | $965,401 Land $597,219 Building $368,182 |
| 2023 | $16,012.00 (+3.14%) | $927,918 Land $574,031 Building $353,887 |
| 2022 | $15,524.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 12 Alturas Way in Zone X, an area of minimal flood risk, though there have been 16 flood claims nearby since 1979.
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 | 9 in force |
| Nearby Flood Claims | 16 (1979–2026) |
| Claims Outside the SFHA | 7 of 16 |
| Most Recent Claim | Jan 2026 · tidal / storm surge |
| 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 12 Alturas Way is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond 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 589 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 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Verizon.
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