The Observatory Sun Valley, a Viceroy Resort
The Observatory Sun Valley, a Viceroy Resort, is a luxury mountain resort in downtown Ketchum, Idaho, marking Sun Valley's first branded luxury hotel and for-sale residence offering.
Official Website300 River Street East, Ketchum. 12 residences and 73 hotel keys. Completing October 2026.
The Observatory Sun Valley, a Viceroy Resort, is a luxury mountain resort in downtown Ketchum, Idaho, marking Sun Valley's first branded luxury hotel and for-sale residence offering. Operated by Viceroy Hotels & Resorts, the roughly 150,000-square-foot property pairs 73 guest rooms with 12 single-level penthouse residences. Designed by Hornberger + Worstell with de Reus Architects, its signature feature is a rooftop observatory with an active telescope and terrace bar celebrating the Central Idaho Dark Sky Reserve, alongside a full-service spa, indoor thermal pool, cold plunge, and fitness center.
Frequently asked
Where is The Observatory Sun Valley, a Viceroy Resort located?
The Observatory Sun Valley, a Viceroy Resort is located in Ketchum.
When will The Observatory Sun Valley, a Viceroy Resort open?
The Observatory Sun Valley, a Viceroy Resort is opening soon, with completion expected on October 30, 2026.
Who designed The Observatory Sun Valley, a Viceroy Resort?
The Observatory Sun Valley, a Viceroy Resort was designed by Hornberger + Worstell, de Reus Architects.
How big is The Observatory Sun Valley, a Viceroy Resort?
The Observatory Sun Valley, a Viceroy Resort features 12 residences and 73 hotel keys.