300 E River St E, Ketchum, ID 83340

LATEST
bedrooms 3
bathrooms 4
|Apartment
NZD $21,209,852
USD $11,950,000
Published on: 07 Nov 2026
Last updated on: 08 Nov 2026
300 E River St E, Ketchum, ID 83340
300 E River St E, Ketchum, ID 83340
300 E River St E, Ketchum, ID 83340
+10
300 E River St E, Ketchum, ID 83340
  • 10
Property ID: 110121069724
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Residential, 1 Story, Ketchum, ID

300 E River St E, Ketchum, ID 83340
The Observatory Sun Valley, A Viceroy Resort, offers twelve single-level penthouse residences with sweeping mountain views, with only eight remaining. This extraordinary northwest-corner, fourth-floor residence features 3 bedrooms, 3 en suite baths plus a powder room and office. Enjoy views west to Bald Mountain, north from the dining room and primary suite, and south from two bedrooms. 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. This extraordinary northwest-corner residence is located on the building's fourth floor and offers 3,484 livable square feet. Featuring 3 bedrooms, 3 en suite baths plus a powder room and office space, the residence enjoys views west to Bald Mountain from the great room, north from the dining room and primary suite, and south from two bedrooms. The spacious primary suite features an exceptionally large closet and bathroom. 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, cafe, 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.

Property Details

Basic Info

Property Type
Apartment
Listing Status
Pending
Building Size
323.67 m2
Year Built
2026
Rooms
3 bedroom(s), 4 bathroom(s)
Architecture Style
Contemporary
Num Floors
1
County
Blaine
Parcel ID
RPK00000830020
Provider
Sun Valley Board of Realtors
Brokerage Office Name
Keller Williams Sun Valley Southern Idaho
Brokerage Office Phone
(208) 622-7722
Neighbourhoods
Ketchum
Address
300 E River St E, Ketchum, ID 83340
Contact Agent
Burnett Properties
Keller Williams Sun Valley Southern Idaho
647 Filer Ave Suite 101, Twin Falls, ID 83301
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Burnett Properties
647 Filer Ave Suite 101, Twin Falls, ID 83301
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      Property ID: 110121069724

      Original Property ID: 3yd-SVBORID-26-335091
      Data provided by Sun Valley Board of Realtors, MLS #: 26-335091
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      Copyright © 2026 Sun Valley Board of Realtors. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.