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New construction
  • $6,800,000

    300 E River St E #420, Ketchum, ID 83340

    2beds
    2,123sqft
    : 
    $41,705/mo
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    Condominium
    Built in 2026
    -- sqft lot
    $-- Zestimate®
    $3,203/sqft
    $-- HOA

    What's special

    Butterfly roof designOffice spaceLaundry roomSweeping mountain viewsSouth-facing valley viewsSpacious kitchen
    The Observatory Sun Valley, A Viceroy Resort, offers twelve single-level penthouse residences with sweeping mountain views, with only eight remaining. This top-floor, 2-bedroom residence features 2 en suite baths plus a powder room, office space, north-facing views to Griffin Butte and the Boulders, south-facing valley views, and partially exposed wood purlin ceilings. 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 just off the center of the building's connecting north-south section, this 2,123-square-foot residence is one of only two remaining on the fourth and top floor. Featuring 2 bedrooms, 2 en suite baths plus a powder room, the residence offers north-facing views to Griffin Butte and the Boulders from the great room and primary bedroom, while the second bedroom enjoys southern views down the Wood River Valley. The floor plan includes a spacious kitchen, pantry, laundry room, and office space. Partially exposed wood purlin ceilings reflect the building's distinctive butterfly roof design. 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.
    4 days
    111
    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#: 26-335090MLS Logo

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 2
      • Bathrooms: 3
      • Full bathrooms: 2
      • 1/2 bathrooms: 1
      Heating
      • Has Heating (Unspecified Type)
      Features
      • Flooring: Wood
      Interior area
      • Total structure area: 2,123
      • Total interior livable area: 2,123 sqft
      • Finished area above ground: 2,123

      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: $3,203/sqft
      • Date on market: 11/6/2026
      • Inclusions: Stack W/D, Refrigerator, Range - Elec, Oven - Elec, Microwave, Hood Fan, Disposal
      • Road surface type: Paved

        Estimated market value

        Not available

        Estimated sales range

        Not available

        Not available

        Price history

        DateEventPrice
        11/6/2026Listed for sale$6,800,000$3,203/sqft
        Source: Sun Valley BOR MLS #26-335090 Report a problem

        Public tax history

        Tax history is unavailable.

        Monthly payment

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        All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
        HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
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        Climate risks

        Neighborhood: 83340

        Getting around

        70 / 100
        Very Walkable
        51 / 100
        Bikeable

        Nearby schools

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