Menlo Park, CA
The Observatory Sun Valley, A Viceroy Resort
Location
Ketchum, ID
Owner
Harriman Ketchum Hotel
Architect/s
Hornberger + Worstell
Office Region
San Francisco
A luxury alpine retreat combining 73 guest suites, 12 resort residences, year-round amenities, and a signature rooftop observatory overlooking Sun Valley.
The Observatory Sun Valley, A Viceroy Resort is a 148,773-square-foot luxury hospitality destination along Trail Creek in Ketchum, Idaho. The four-story, Type II-A mixed-use development integrates 73 guest suites and 12 for-sale resort residences, with three below-grade levels accommodating 105 vehicles through a mechanical parking system.
The hospitality program centers around a 3,500-square-foot restaurant and bar led by chef Charlie Palmer, complemented by a bakery, ski lounge, spa, fitness facilities, retail, and meeting and event spaces. A rooftop observatory offers sweeping mountain views, while an outdoor pool and event terrace create opportunities for year-round gathering.
Refined interiors and extensive back-of-house facilities support both hotel operations and residential living. Situated on a constrained alpine site, the project requires careful sequencing around terrain, seasonal weather, and limited access. Build Group coordinates the vertically integrated hotel, residential, assembly, retail, and parking uses, including complex life safety systems with multi-level fire protection and standpipes designed to NFPA 13 standards.
Sector
-
Hospitality
Hotels & Resorts
Project Type
Ground-Up
Self-Perform Scopes
Structural Concrete, Structural Wood Framing, Shoring & Formwork, Exterior Façade Systems, Metal Framing/Drywall, Insulation, Fireproofing, Flooring
Size
148,773
Levels
7
Units
73 (Hotel) 12 (Multifamily Condominium)
Stalls
105
Photo Credits: George Baker
Join Build Group
Want to Work on Projects Like This?
Get In Touch
Want to Learn More or Connect With Our Team?
Whether you’re planning a new project, weighing your options or just have a question, we’d like to hear from you. Tell us a little about what you’re building, and the right person on our team will get back to you. From the first conversation, you’ll work with people who bring the same precision to your project that we bring to every job site.
