Ketchum, USA
The Observatory Residences
The Observatory Residences is a Viceroy branded residence in Ketchum, USA, opened in 2026, with 12 units, developed by Jack Bariteau and designed by Hornberger + Worstell. It is offered for sale.
About the property
- Offered as
- Sale
- Opened
- 2026
- Units
- 12
- Room types
- 2 bedrooms · 3 bedrooms · 4 bedrooms · Penthouse
- Developer
- Jack Bariteau
- Architecture
- Hornberger + Worstell
- Interiors
- FDG Design Group / De Reus Architects
- The building
- Twelve single-level penthouses rising above The Observatory Sun Valley, A Viceroy Resort, at the gateway to downtown Ketchum within the Central Idaho Dark Sky Reserve, with a rooftop observatory
- The hotel
- The Observatory Sun Valley
What residents have
- Public observatory
- Spa with sauna and thermal pools
- Year-round heated plunge pools
- TechnoGym fitness room
Where it is
300 South Main Street, Ketchum, 83340
Open in Google MapsQ&A
Prices at The Observatory Residences: two bedrooms from US$4.75m; three bedrooms from US$8.24m (2026).
At The Observatory Residences, select residences have a furnished lock-off hotel room; it, or the whole residence, may be placed in the Viceroy hotel rental pool.
For residents of The Observatory Residences: access to hotel room service, cleaning, ski concierge and valet parking; two parking spaces and storage per residence.
Yes. The hotel at The Observatory Residences is The Observatory Sun Valley, A Viceroy Resort, in the same building; key count not published.
The Observatory Residences was completed in 2026.
The Observatory Residences has 12 penthouses, two to four bedrooms.
Sizes at The Observatory Residences: 1,499–3,484 sq ft.
Yes. At The Observatory Residences: spa with sauna and thermal pools.
Yes. At The Observatory Residences: technoGym fitness room.
The Observatory Residences was developed by Jack Bariteau, designed by Hornberger + Worstell, with interiors by FDG Design Group; De Reus Architects.
Yes. We advise on The Observatory Residences: what is available now, the terms behind the price, and an introduction to the developer or the owner’s agent.
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