Marin County property record for 101 Upper Alcatraz Pl, Mill Valley, CA 94941 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 5 Beds |
| Bathrooms | 3.5 Baths |
| Year Built | Built 1970 |
| Square Footage | 3,351 sqft Living Area |
| Lot Size | 13,200 sqft (0.303 acres) |
| Garage | 714 sqft |
| Occupancy | Owner Occupied |
| Tax Bill | $12,163.00 (2025) |
| Primary APN | 029-093-02 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 7 Rooms |
| Building Area | 3,351 sqft Living Area |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1929 |
|---|---|
| Effective Year Built | Effective 1970 |
| Architectural Style | Contemporary Style |
| Lot Area | 13,200 sqft (0.303 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Area | 714 sqft Garage |
| Deck Area | 830 sqft Deck |
| Patio Area | 830 sqft Patio |
| Heating System | Central Heating |
|---|
| Street Address | 101 UPPER ALCATRAZ PL |
|---|---|
| City | MILL VALLEY |
| State | CA |
| Zip | 94941-1829 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Subdivision | TAMLPAIS LAND & WATER CO MAP |
| Legal Block | 9 |
| Legal Lot Number | 10 |
| Jurisdiction | MARIN CA |
| Minor Civil Division | SOUTHEAST MARIN |
| Census Blockgroup | 5 |
| Census Block | 5010 |
| Census Tract | 127000 |
Source: Marin County records · APN 029-093-02
Assessment roll updated July 13, 2026 · Last verified July 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 File |
|---|---|
| Mailing Address | 101 UPPER ALCATRAZ PL, MILL VALLEY, CA 94941-1829 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Trust |
| Date | Document |
|---|---|
| Feb 01, 2022 | Deed of Trust, Mortgage · Conventional Mortgage PATELCO CU |
| May 19, 2017 | Deed of Trust, Mortgage · Line of Credit PATELCO CU |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | May 20, 1998 |
| Transfer Doc | 0000039746 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARIN CA |
| Property Address | 101 UPPER ALCATRAZ PL, MILL VALLEY, CA 94941-1829 |
| Transaction Type | Mortgage |
| Record Updated | Feb 16, 2022 |
| Title Company | PLACER TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 101 UPPER ALCATRAZ PL, MILL VALLEY, CA 94941-1829 |
| Document Number | 0000004081 |
|---|---|
| Date | Feb 01, 2022 |
| Instrument | 2022-0004081 |
| Name | PATELCO CU |
|---|---|
| Type | Credit Union |
| Address | DUBLIN, CA 94568 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Feb 01, 2052 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARIN CA |
| Property Address | 101 UPPER ALCATRAZ PL, MILL VALLEY, CA 94941-1829 |
| Transaction Type | Mortgage |
| Record Updated | Feb 05, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0000020234 |
|---|---|
| Date | May 19, 2017 |
| Instrument | 2017-0020234 |
| Name | PATELCO CU |
|---|---|
| Type | Credit Union |
| Address | PLEASANTON, CA 94588 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 302 Months |
| Due | Jun 30, 2042 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly (Revolving credit lines are monthly unless stated otherwise). |
Source: Marin County records · Assessment roll updated July 13, 2026 · Last verified July 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) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $739,619 (+2%) Land $333,889 Building $405,730 | |
| 2025 | $12,163.00 (+6.03%) Homeowner's exemption | $725,118 (+4.04%) Land $327,343 Building $397,775 |
| 2023 | $11,471.00 (+3.31%) Homeowner's exemption | $696,965 Land $314,634 Building $382,331 |
| 2022 | $11,103.00 |
Source: FEMA National Flood Hazard Layer, Marin County (06041C), updated October 18, 2023 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Special Flood Hazard Area | No |
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Wildfire Risk | Low above 20% of the US · above 11% of California |
|---|---|
| Wildfire Likelihood | About 1 in 4,348 per year |
| Exposure | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; lenders make the official flood determination.
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