The Observatory Sun Valley, A Viceroy Resort, offers twelve single-level penthouse residences with sweeping mountain views, only eight remaining. This 2-bedroom northwest-corner residence features 2 en suite baths plus a powder room, with the easternmost bedroom serving as a hotel lock-off room. Three terrace balconies offer views west to Bald Mountain and north to Griffin Butte and the Boulders. Adorning The Observatory Sun Valley, A Viceroy Resort, twelve single-level penthouse residences with sweeping views of Idaho's Rocky Mountains are coming to life. Only eight remain available.
Located in the west wing at the northwest corner of Highway 75 and River Street, this residence offers views west to Bald Mountain and north to Griffin Butte and the Boulders. Featuring 2 bedrooms, 2 en suite baths plus a powder room, this residence includes the easternmost bedroom as a hotel lock-off room. Three window sections in the great room and kitchen open to exterior terrace balconies.
Ownership of these singular residences includes highly personalized service and access to a full suite of amenities, from a spa and fitness center to thermal pools, meeting spaces, café, restaurant, bar, ski concierge, and a state-of-the-art observatory. All conveniently located at the gateway to downtown Ketchum and just minutes from the mountain adventures Sun Valley has to offer.
New construction
$6,175,000
300 E River St E #330, Ketchum, ID 83340
2beds
1,871sqft
Condominium
Built in 2026
-- sqft lot
$-- Zestimate®
$3,300/sqft
$-- HOA
What's special
Sweeping mountain viewsNorthwest-corner residenceThree terrace balconiesGreat roomPowder room
- 4 days
- 54
- 6
Zillow last checked:
Listing updated:
Listed by:
Burnett Properties 208-720-0906,
Keller Williams Sun Valley Southern Idaho
Source: Sun Valley BOR MLS,MLS#: 26-335087
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 2
- Bathrooms: 3
- Full bathrooms: 2
- 1/2 bathrooms: 1
Heating
- Has Heating (Unspecified Type)
Features
- Flooring: Wood
- Has fireplace: Yes
Interior area
- Total structure area: 1,871
- Total interior livable area: 1,871 sqft
- Finished area above ground: 1,871
Property
Details
- Parcel number: RPK00000830020
- Zoning: K/T
Construction
Type & style
- Home type: Condo
- Architectural style: Contemporary,1st Floor Primary
- Property subtype: Condominium
Materials
- Concrete
Condition
- New Construction
- New construction: Yes
- Year built: 2026
Community & HOA
HOA
- Has HOA: Yes
- Services included: Insurance, Maintenance Structure, Sewer, Snow Removal, Trash, Water
- HOA name: Viceroy Hotel Group
Location
- Region: Ketchum
Financial & listing details
- Price per square foot: $3,300/sqft
- Date on market: 11/6/2026
- Inclusions: Stack W/D, Refrigerator, Range - Elec, Oven - Elec, Microwave, Hood Fan, Dishwasher
- Road surface type: Paved
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 11/6/2026 | Listed for sale | $6,175,000$3,300/sqft |
Source: | ||
Public tax history
Tax history is unavailable.
Monthly payment
Est. payment
