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New construction
  • $5,200,000

    300 E River St E #335, Ketchum, ID 83340

    2beds
    1,536sqft
    : 
    $31,892/mo
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    Condominium
    Built in 2026
    -- sqft lot
    $-- Zestimate®
    $3,385/sqft
    $-- HOA

    What's special

    Sweeping mountain viewsSingle-level penthouse residences
    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.
    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#: 26-335088MLS Logo

      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

        DateEventPrice
        11/6/2026Listed for sale$5,200,000$3,385/sqft
        Source: Sun Valley BOR MLS #26-335088 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

        GreatSchools rating

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