About This Home

This 3-bedroom, 4-bathroom condo at 300 E River St E #300 in Ketchum, ID is listed for $9,000,000 ($3,194 per sqft). Built in 2026, the home offers 2,818 sqft of living space on a N/A lot.

Key Features

  • Built in 2026
  • Fireplace

Property Details

1 story
3 full, 1 half
2-car garage
#300
2026

Amenities

Fireplace
Listing Description

The Observatory Sun Valley, A Viceroy Resort, offers twelve single-level penthouse residences with sweeping mountain views, with only eight remaining. This 3-bedroom residence features 3 en suite baths plus a powder room, three-sided west, south and east views, with Bedroom 3 serving as a hotel lock-off room.

A covered outdoor terrace features radiant snowmelt. 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. East wing, Leadville Avenue side, and the southernmost floor plan.

2,818 saleable square feet includes a three sided (west, south and east views), 3-bedroom, 3-ensuite bathroom floor plan with powder room, great room (kitchen, living, dining), pantry, laundry room with LG stacked washer dryer unit and cabinet storage and sink and faucet, wet bar with Sub Zero 42 bottle, undercounter wine refrigerator.

This residence features Bedroom 3 as lock-off hotel room unit allowing the Residence owner the flexibility of placing this bedroom (fully furnished as a hotel room to our hotel luxury design standards) into the hotel room rental pool. The residence also features an exterior outdoor covered terrace of 247 square feet with pedestal supported porcelain pavers with radiant snowmelt that is assigned as limited common area to this residence.

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 conveniently located at the gateway to downtown Ketchum and just minutes from all the mountain adventures Sun Valley has to offer.

Monthly Cost Estimate

$48,134/mo

20% down · 6.5% · 30 years

Principal$6,509
Interest$39,000
Insurance$2,625

Estimates only. Actual payments may vary.

Location

300 E River St E #300

Ketchum, ID 83340

Features & Amenities

Interior Features

Smart ThermostatAir ConditioningCustom ClosetsElevatorFireplace GasLock OffMain Flr Primary BdrmWalk-in ClosetWindow CoveringsProgrmabl ThermostatLED LightsWood Flooring

Exterior Features

Assn Hot TubAssn PoolBalconyDeckViewsStorage Closet

Property Details

Flooring

Wood

Construction

Concrete

Outdoor Features

Deck

Heating

RadiantHeat Pump (Heating)

Questions & Answers

This 3-bedroom, 4-bathroom condo at 300 E River St E is listed at $9,000,000 ($3,194/sqft). The estimated monthly payment is $48,134 based on 20% down, a 30-year loan at 6.5% interest, estimated insurance.

Key features include: Built in 2026, Fireplace. Interior Features: Smart Thermostat, Air Conditioning, Custom Closets. Exterior Features: Assn Hot Tub, Assn Pool, Balcony.

This property is listed by Burnett Properties.

BP

Burnett Properties

Agent at Keller Williams Sun Valley Southern Idaho

Listed by Keller Williams Sun Valley Southern Idaho · Broker phone: (208) 622-7722 · View on Broker Site

MLS# 26-335083· Source: Sun Valley Board of Realtors· 5 days on PropertySimple

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.

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

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