$9,750,000

2 Upper Alcatraz Place Mill Valley, CA 94941

Blithedale Canyon Neighborhood

Estimated payment $54,325/month

Total Views 9,123
5 Beds
5.5 Baths
4,129 Sq Ft
$2,361 Price per Sq Ft

Highlights

  • Solar Power System
  • Private Lot
  • 2 Car Attached Garage
  • Mill Valley Middle School Rated A
  • 1 Fireplace
  • Living Room

About This Home

A groundbreaking Net Zero certified compound just minutes from downtown Mill Valley, 2 Upper Alcatraz Place blends cutting-edge sustainability with stunning architecture and sweeping views from Mt. Tam to the San Francisco skyline. This estate features a 3,610 sq ft all-electric main residence and a 519 sq ft legal ADU with private entry, full kitchen, and terrace. Highlights include wide plank oak floors, floor-to-ceiling glass, Control4 smart home integration, a penthouse-level primary suite, 505 sq ft view terrace, and a rooftop lawn and integrated sound throughout. Solar-powered with battery back up, a home built for future-forward living, this is Mill Valley luxury reimagined.

Listing Agent

Lisa Smith

Engel & Völkers Mill Valley License #01927676 Listed on: 03/02/2026

Engel & Völkers Mill Valley

Co-Listing Agent

Joshua Deitch

Coldwell Banker Realty License #01902477

Home Details

Home Type

  • Single Family

Year Built

  • Built in 2021

Lot Details

  • 0.3 Acre Lot
  • Street terminates at a dead end
  • Artificial Turf
  • Private Lot

Parking

  • 2 Car Attached Garage

Interior Spaces

  • 4,129 Sq Ft Home
  • 3-Story Property
  • 1 Fireplace
  • Family Room
  • Living Room
  • Dining Room
  • Stacked Washer and Dryer

Bedrooms and Bathrooms

  • 5 Bedrooms
  • Primary Bedroom Upstairs
  • Bathroom on Main Level

Additional Features

  • Solar Power System
  • Central Heating and Cooling System

Listing and Financial Details

  • Assessor Parcel Number 029-093-01

Home Details

Home Type

Single Family

Year Built

Built in 2021

Lot Details

0.3 Acres

Parking

2

Listing Details

  • Type: Residential
  • Property Sub Type: Single Family Residence
  • Subtype Description: Detached
  • Directions To Property: Throckmorton, Rt Old Mill, Lft Lovell, Rt Summit, Rt Upper Alcatraz
  • Lot Size Acres: 0.2984
  • Stories: 3
  • Special Features: None

Interior Features

  • Number Of Fireplaces: 1
  • Bedrooms: 5
  • Half Bathrooms: 1
  • Full Bathrooms: 5
  • Square Footage: 4129.00
  • Bathrooms: 6
  • Fireplace Features: Other
  • Main Level: Dining Room, Family Room, Garage, Kitchen, Living Room, Partial Bath(s), Street Entrance

Exterior Features

  • Lot Features: Dead End, Grass Artificial, Private

Garage/Parking

  • Parking Features: Attached
  • Total Parking Spaces: 3.00
  • Garage Spaces: 2.00

Utilities

  • Cooling: Central
  • Sewer: Public Sewer
  • Utilities: Solar
  • Water Source: Public
  • Heating: Central
  • Laundry Features: Washer/Dryer Stacked Included

Lot Info

  • Assessor Parcel Number: 029-093-01
  • Lot Size Sq Ft: 12998.00

Building Info

  • Year Built: 2021

Multi Family

  • Second Unit Kitchen: Yes
  • Second Unit Occupied: No
  • Second Unit Partial Bathrooms: 0
  • Second Unit Type: 2nd Unit Attached

Map

Range of Values:

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Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $49,760 $3,960,941 $1,314,218 $2,646,723
2024 $47,923 $3,883,301 $1,288,456 $2,594,845
2023 $47,107 $3,807,158 $1,263,192 $2,543,966
2022 $44,385 $3,732,510 $1,238,426 $2,494,084
2021 $16,857 $1,232,857 $1,214,147 $18,710
2020 $16,693 $1,220,221 $1,201,702 $18,519
2019 $15,759 $1,196,304 $1,178,148 $18,156
2018 $26,925 $1,988,848 $1,155,048 $833,800
2017 $5,414 $190,093 $74,450 $115,643
2016 $2,878 $186,366 $72,990 $113,376
2015 $3,411 $183,567 $71,894 $111,673
2014 $3,121 $179,971 $70,485 $109,486
Source: Public Records

Property History

Date Event Price List to Sale Price per Sq Ft
03/02/2026 03/02/26 For Sale $9,750,000 -- $2,361 / Sq Ft
Source: Bay Area Real Estate Information Services (BAREIS)

Purchase History

Date Type Sale Price Title Company
Deed $1,954,000 Old Republic Title Co
Source: Public Records

Source: Bay Area Real Estate Information Services (BAREIS)

MLS Number: 326016540

Bay Area Real Estate Information Services (BAREIS)

APN: 029-093-01

California Marin County Mill Valley 94941 Blithedale Canyon

2 Upper Alcatraz Place, Mill Valley, CA

For Sale

Detached

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Bay Area Real Estate Information Services (BAREIS) Listing information deemed reliable but not guaranteed. Copyright 2026 Bay Area Real Estate Information Services, Inc. All Right Reserved.

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Listing Agent
Lisa Smith
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Engel & Völkers Mill Valley
(628) 203-1255
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