Because very few homes of this size have ever been built in the resort, these types of opportunities often surface quietly and infrequently, often changing hands without ever reaching the broader market.
At 4,876 square feet, the four-bedroom penthouse is among the most expensive condominium offerings in Park City history.
But its value is less rooted in its size than its placement: direct access to the slopes, mountain and valley views for long distances, and full integration into one of Deer Valley’s densest enclaves. This is not a speculative new construction, but a heritage residence that has already secured its place within the architectural fabric of the resort.
At a glance: an old penthouse on Empire Pass
- Address: 9100 Marsac Avenue, Park City, UT
- Price: $18,500,000
- Size: 4,876 square feet
- Bedrooms: 4
- Bathrooms: 4 full, 1 half
- Listing agents: Ashley Rhodes and Brad Jensen, Coldwell Banker Realty
Direct access to the slopes in one of Deer Valley’s most exclusive settings
Located in the Empire Pass enclave, the penthouse offers true ski-in/ski-out access – the kind that allows residents to step straight from the building onto the slopes without compromise.
From its elevated vantage point, the residence overlooks the Deer Valley slopes and surrounding ridges, with views that shift dramatically between the winter and summer seasons.
A living space that is completely embedded in the skiing experience
Unlike many resort residences that rely on proximity rather than integration, this penthouse is fully embedded in the ski experience, while remaining isolated from the foot traffic and noise typical of lower mountain locations.
Renovated interiors led by Robert AM Stern Architects
The residence underwent an extensive renovation overseen by senior architect Roger Seifter of Robert AM Stern Architects, with interiors by Mark Epstein Designs.
The result is a house that feels current without chasing trends – modern in its clarity, but based on materials and proportions that suit the alpine environment.
With high ceilings and light wooden finishes
Light wood finishes, high ceilings and large windows define the interior palette, allowing natural light to play a central role throughout the day.
Rather than overwhelming the architecture, the design seeks to frame the landscape beyond, making the surrounding mountains a constant presence from almost every room.
A great room designed for both scale and quiet moments
At the heart of the penthouse is a large open space, designed for both large gatherings and quieter evenings after the lifts close.
Anchored by striking fireplaces at either end, the space flows seamlessly to a terrace that extends the living area outdoors.
Flexible layout with central sight lines
The layout prioritizes flexibility, with sightlines carefully managed to maintain intimacy despite the scale. Whether it’s used to host après-ski gatherings or simply watch the weather roll over the ridges, the room acts as the home’s central gathering point without feeling performative.
Four bedrooms positioned for privacy and views
The four-bedroom, five-bathroom layout combines openness with separation, allowing guests and family members to retreat to private spaces without breaking away from the overall flow of the home.
With a huge master bedroom
The bedrooms are oriented to capture mountain and valley views, reinforcing the sense that this is a home shaped by its environment, not imposed.
The master bedroom in particular steals the show with its large proportions, relaxing views and outdoor terrace.
With a fireplace and a special seating area
The beautifully decorated primary room features a dedicated seating area and a fireplace for cozy evenings after a full day on the slopes.
Quality of life is central, with wellness in second place: the unit has its own sauna
Throughout the home, the emphasis on livability remains: generous proportions, thoughtful circulation, and finishes that feel like they were designed for long-term ownership rather than short-term impression.
What further enhances the quality of life are the house’s wellness facilities, including a private sauna.
Five-star living in the Montage Deer Valley ecosystem
The property includes full access to Montage Deer Valley’s array of amenities, from private ski access and world-class dining to spa facilities, wellness programs and concierge services. For owners who split their time among multiple properties, the hotel’s infrastructure provides a level of convenience that detached homes in the mountains often can’t match.
It’s an ownership model that combines privacy with service – a model that has become increasingly rare at this level within Deer Valley.
A finite category within Park City’s luxury market
Penthouse homes of this caliber, size and location will not be replaced at Montage Deer Valley. Zoning restrictions, limited buildable land, and the maturity of Empire Pass mean that what exists today largely determines what will exist tomorrow.
For buyers focused on long-term value rather than novelty, this penthouse represents a very specific category: a historic ski residence anchored to one of Park City’s most established luxury addresses.
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