Marin County property record for 520 Alta Way, Mill Valley, CA 94941
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,021 sqft · built 2000 |
| Lot Size | 0.147 acres (6,400 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $995,000 (Feb 2004) |
| Tax Bill | $22,012 (2025) |
| Deeds & Mortgages | May 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 049-014-31 |
| Primary APN | 049-014-31 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Building Area | 2,021 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2000 |
|---|---|
| Effective Year Built | Effective 2001 |
| Lot Area | 6,400 sqft (0.147 acres) |
| Garage Area | 474 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | 650 sqft |
| Patio Area | 650 sqft |
| Heating System | Central |
|---|
| Street Address | 520 ALTA WAY |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-3900 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Subdivision | TAMALPAIS VLY 04 |
| Legal Block | 1 |
| Legal Lot Number | 18,19 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 128100 |
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 Company Names on Record |
|---|---|
| Mailing Address | 520 ALTA WAY, MILL VALLEY, CA 94941-3900 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Borrower in Default |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 18, 2004 · Amount on Record |
| Deed Sale | Feb 18, 2004 · Amount on Record |
| Prior Sale | Mar 2, 2001 · Amount on Record |
| Deed Document Number | 200412011 |
| Last Transfer Date | Oct 24, 2011 |
| Transfer Doc | 0000055057 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARIN CA |
| Property Address | 520 ALTA WAY, MILL VALLEY, CA 94941-3900 |
| Transaction Type | Mortgage |
| Record Updated | Jul 21, 2022 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY TITLE |
| Name | Verified Name |
|---|---|
| Address | 520 ALTA WAY, MILL VALLEY, CA 94941-3900 |
| Document Number | 0000030920 |
|---|---|
| Date | May 7, 2021 |
| Instrument | 2021-0030920 |
| Name | CITIZENS BANK NA |
|---|---|
| Type | Bank |
| Address | PROVIDENCE, RI 02903 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 354 Months |
| Due | Nov 1, 2050 |
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 | $1,442,886 (+2%) Land $761,322 Building $681,564 | |
| 2025 | $22,012.00 (+5.66%) Homeowner's exemption | $1,414,598 (+4.04%) Land $746,396 Building $668,202 |
| 2023 | $20,832.00 (+3.46%) Homeowner's exemption | $1,359,674 Land $717,416 Building $642,258 |
| 2022 | $20,135.00 |
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 | 6 in force |
| Nearby Flood Claims | 6 (1982–2019) |
| Claims Outside the SFHA | 3 of 6 |
| Most Recent Claim | Feb 2019 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
| 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.
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.
4G LTE (outdoors only), no 5G reported
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