The Observatory Sun Valley, A Viceroy Resort, offers twelve single-level penthouse residences with sweeping mountain views, with only eight remaining. This 2-bedroom, 2-bath west-wing residence features full western views of Bald Mountain, including the Roundhouse and Seattle Ridge. 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 on the Highway 75 side, this 1,536-square-foot residence features 2 bedrooms, 2 bathrooms, and full western views of Bald Mountain, the Roundhouse and Seattle Ridge. The floor plan is virtually a mirror image of Residence 310.
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
$5,200,000
300 E River St E #335, Ketchum, ID 83340
2beds
1,536sqft
Condominium
Built in 2026
-- sqft lot
$-- Zestimate®
$3,385/sqft
$-- HOA
What's special
Sweeping mountain viewsSingle-level penthouse residences
- 4 days
- 65
- 4
Zillow last checked:
Listing updated:
Listed by:
Burnett Properties 208-720-0906,
Keller Williams Sun Valley Southern Idaho
Source: Sun Valley BOR MLS,MLS#: 26-335088
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 2
- Bathrooms: 3
- Full bathrooms: 2
- 1/2 bathrooms: 1
Heating
- Has Heating (Unspecified Type)
Features
- Smart Thermostat
- Flooring: Wood
- Has fireplace: Yes
Interior area
- Total structure area: 1,536
- Total interior livable area: 1,536 sqft
- Finished area above ground: 1,536
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, Sewer, Snow Removal, Trash, Water
- HOA name: Viceroy Hotel Group
Location
- Region: Ketchum
Financial & listing details
- Price per square foot: $3,385/sqft
- Date on market: 11/6/2026
- Inclusions: Stack W/D, Refrigerator, Range - Elec, Oven - Elec, Microwave, Disposal, 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 | $5,200,000$3,385/sqft |
Source: | ||
Public tax history
Tax history is unavailable.
Monthly payment
Est. payment
