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3 Beds
4 Baths
2,574 sqft

$8,235,000

300 E River St E 325, Ketchum ID, 83340

Price per sqft$3,199.30
Built in2026
Property size2,574 sqft
Property typeCondominium

Overview

Active

Listed Nov 6, 2026

Updated 33h ago

The Observatory Sun Valley, A Viceroy Resort, offers twelve single-level penthouse residences with sweeping mountain views, with only eight remaining. This 3-bedroom, 3.5-bath south-facing residence features a nearly 100-foot-wide floor plan, en suite bedrooms, two terrace balconies overlooking the pool terrace and Trail Creek, and floor-to-ceiling glass in the great room. 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 center of the hotel's north-south connecting section between the east and west wings, this 2,574-square-foot, south-facing residence features a unique, nearly 100-foot-wide floor plan with 3 bedrooms, 3 en suite baths plus a powder room. The expansive great room offers end-to-end living, dining and kitchen areas, with dramatic floor-to-ceiling glass at its center. Two exterior terrace balconies, one directly off the kitchen and the other off a guest bedroom, overlook the hotel's pool terrace and Trail Creek along the property's southern boundary. The primary suite occupies the far eastern end of the residence, while two guest bedrooms are situated at the western end, providing exceptional separation and privacy. 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.

$54,788/mo

Est. mortgage payment based on a $8,235,000 home price.

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

Additional information

MLS® ID
26-335086

Interior Features

Bedrooms
3
Bathrooms
4
Fireplace
Yes
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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