2 Upper Alcatraz

Mill Valley’s Pinnacle of Sustainable Luxury 2 Upper Alcatraz Place | Mill Valley, CA At the intersection of architectural brilliance, environmental innovation, and rare walkable seclusion lies 2 Upper Alcatraz Place—a Net Zero certified compound unlike anything else in Mill Valley. Designed for those who value craftsmanship, cutting-edge sustainability, and panoramic views, this extraordinary property redefines the standard for luxury living in Marin. Positioned above downtown Mill Valley on a private cul-de-sac shared with just six other homes, this newly built, multi-structure estate features: 3,610 sq ft all-electric main residence across three levels 519 sq ft legal ADU with private entrance, EV parking, and terrace 504 sq ft garage with dual EV chargers and custom cabinetry 325 sq ft secure storage 505 sq ft outdoor terrace with fire pit, BBQ, and outdoor living spaces Every detail—from the hand-built floating staircase to the rooftop all-season turf terrace with integrated speakers—has been considered, refined, and executed at the highest level. Unrivaled Views & Location Expansive, unobstructed panoramas from Mt. Tam to the San Francisco skyline, Alcatraz, and the Bay No neighboring rooftops or power lines in view—only nature, sky, and city Walkable to downtown Mill Valley in minutes via historic stairway SLP #51 at the end of the street Located in one of Mill Valley’s quietest and most private enclaves Architectural Artistry A 35-foot vertical slate feature wall and trapezoidal floating stair anchor the home's central volume Custom Shinoki oak cabinetry and a Louis Poulsen Artichoke chandelier elevate the entry experience Frameless window and door detailing and floor-to-ceiling glass maximize transparency and light Exterior and interior spaces designed around three mature redwoods for grounded elegance Forward-Thinking Sustainability Mill Valley’s first Positive Energy / Net Zero new construction home 27-panel 9.9 kWh solar array with 35 kWh on-site battery storage—grandfathered into PG&E’s NEM 2.0 Rainwater harvesting (7,500 gallons) and graywater irrigation system Three planted green roofs for passive cooling and stormwater absorption Ultra-efficient aerobarrier-sealed envelope, spray foam insulation, and ZIP panel system Concrete with fly ash blend for reduced carbon impact Smart Home Integration Control4 whole-home automation: security, shades, lighting, audio/visual, and climate Lutron programmable lighting and motorized shades in every room Schneider Wiser energy tracking system monitors real-time electric usage Water leak detection and auto shut-off system for risk-free living Five-zone HVAC system with dual air exchangers to refresh air every 90 minutes Indoor-Outdoor Harmony Dramatic 25-ft, 5-panel La Cantina sliding doors disappear into a wall pocket, connecting the main living space to a sprawling outdoor terrace 505 sq ft terrace outfitted with Paloform gas firepit, built-in seating, dining area, and BBQ station Rooftop artificial grass yard with built-in speaker system—perfect for play or yoga Primary Suite & Private Retreats Full-floor penthouse-level primary suite with: Dimplex vapor fireplace Built-in cabinetry and storage Heated marble floors Electric Mirror TVs embedded in vanities Frameless glass walls framing the SF skyline Three ensuite bedrooms on the lower level Additional family room with glass sliders to outdoor turf yard Custom 285-bottle wine cellar with WhisperKool climate system Light-filled office/library nook with custom shelving and cantilevered deck ADU & Additional Amenities Fully legal, never-lived-in ADU with: One bedroom, one bath Full kitchen and laundry 417 sq ft terrace and private entrance EV parking with its own gate and Control4 integration Garage with workbench, EV outlets, and built-in cabinetry Dedicated 325 sq ft storage room behind ADU for gear, tools, or wine delivery Legacy Meets Location Built in harmony with its landscape and decades ahead of its time, 2 & 2a Upper Alcatraz Place is more than a home—it is a model for future-forward luxury living. With elite finishes, intelligent systems, and unparalleled privacy and views, this residence represents a once-in-a-generation opportunity in the heart of Mill Valley.