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2 Beds
4 Baths
2,123 sqft

$6,800,000

300 E River St E 420, Ketchum ID, 83340

Price per sqft$3,203.01
Built in2026
Property size2,123 sqft
Property typeCondominium

Overview

Active

Listed Nov 6, 2026

Updated 2 days ago

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 last remaining penthouse 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.

$45,241/mo

Est. mortgage payment based on a $6,800,000 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
26-335090

Interior Features

Bedrooms
2
Bathrooms
4
Heating
Yes
Basement
No

Other Property Details

View
Yes
New Construction
Yes

Listed by Burnett Properties with Keller Williams Sun Valley Southern Idaho
Listing Contact:  

The IDX display contains information sourced from the Sun Valley Board of REALTORS® as of 11/12/2026. This data is intended solely for personal, non-commercial use and is not to be utilized for any other purposes except to identify potential properties for purchase. Although the MLS data displayed is typically considered reliable, it is not guaranteed to be accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and are advised to conduct their own investigations or seek professional assistance. Other sources besides the Listing Agent may have contributed to the MLS data presented. Unless expressly specified in writing, the Broker/Agent has not confirmed any information obtained from external sources. The Broker/Agent may or may not have acted as the Listing and/or Selling Agent and cannot guarantee the accuracy of property locations displayed on any map. Any compensation offers are solely made to participants of the MLS where the listing is registered.

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Data last updated on 11/12/2026 at 5:27 AM UTC

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