Marin County property record for 1 Lower Alcatraz Pl, Mill Valley, CA 94941
| Property Type | Multi-Family Dwellings |
|---|---|
| Details | 4,236 sqft · built 1965 |
| Lot Size | 0.184 acres (8,000 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $12,328 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 029-093-23 |
| Primary APN | 029-093-23 |
|---|
| Units | 5 Units |
|---|---|
| Building Area | 4,236 sqft Living Area |
| Year Built | Built 1965 |
|---|---|
| Effective Year Built | Effective 1965 |
| Architectural Style | Multi-Family |
| Lot Area | 8,000 sqft (0.184 acres) |
| Street Address | 1 LOWER ALCATRAZ PL |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-1851 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Legal Description | MAP D3 606 |
| Legal Subdivision | TAMALPAIS LAND & WATER CO 05 |
| Legal Lot Number | 6 |
| Jurisdiction | MARIN CA |
| Township / Civil Division | SOUTHEAST MARIN |
| Census Block Group | 5 |
| Census Block | 5010 |
| Census Tract | 127000 |
1 Lower Alcatraz Pl, a residential property, is held in a trust since September 2005.
Source: Marin County records, as of August 31, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 300 MONTGOMERY ST, 800, SAN FRANCISCO, CA 94104-1910 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Sep 15, 2005 |
| Transfer Doc | 0000074531 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 1 Lower Alcatraz Pl was $12,328.
Source: Marin County assessment roll, as of July 13, 2026
| Type | Name |
|---|---|
| State | California |
| County | Marin County |
| Municipality | Mill Valley City |
| 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 | $380,091 (+1.99%) Land $98,066 Building $282,025 | |
| 2025 | $12,328.00 | $372,677 Land $96,143 Building $276,534 |
| 2023 | $12,063.00 (+6.91%) | $358,285 Land $92,410 Building $265,875 |
| 2022 | $11,283.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1 Lower Alcatraz Pl 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 14 policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 14 in force |
| Nearby Flood Claims | 11 (1983–2017) |
| Claims Outside the SFHA | 4 of 11 |
| Most Recent Claim | Mar 2017 · river or lake flooding |
| 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 1 Lower Alcatraz Pl is low, with a 0.02% 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 | 0.02% 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 595 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: T-Mobile, Unwired.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures