Ad #5597487
MLS #26-335084
The Observatory Sun Valley, A Viceroy Resort, offers twelve
300 E River St E 310, Ketchum, ID 83340
$4,750,000
2Beds
3Baths
1,499Sqft
--Acres
About this property
The Observatory Sun Valley, A Viceroy Resort, offers twelve single-level penthouse residences with sweeping mountain views, with only eight remaining. This 2-bedroom east-wing residence features 2 en suite baths plus a powder room, with the second bedroom serving as a hotel lock-off. Terrace balconies offer eastern views up Trail Creek toward Dollar Mountain and the Pioneers. 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 east wing along Leadville Avenue, this residence offers 1,499 saleable square feet with eastern views up Trail Creek, toward the northwest slope of Dollar Mountain and the Pioneer Mountains. Featuring 2 bedrooms, 2 en suite baths plus a powder room, the residence includes a great room, laundry room, and dry bar with a Sub-Zero 42-bottle undercounter wine refrigerator. Terrace balconies are located off the great room and primary bedroom, while the second bedroom serves as a hotel lock-off room. 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 Features
2 Beds
3 Baths
1,499 Sqft
Built in 2026
0.000 Acres
1 Story
Siding: Concrete
Membrane, Composition Roof
Has Swimming Pool
Has Fireplace
Heat Pump (Heating), Radiant
Blaine County
Additional Photos
Contact Information
Burnett Properties
Keller Williams Sun Valley Southern Idaho
208-720-0906
Location
Listing Agent: Burnett Properties 208-720-0906
Broker: Keller Williams Sun Valley Southern Idaho 208-622-7722 Listing Site
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.
Broker: Keller Williams Sun Valley Southern Idaho 208-622-7722 Listing Site
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.
BarrierFreeHome.com
Printed Nov 8, 2026
Photo Gallery
$4,750,000
2
Beds
3
Baths
1,499
Sqft
300 E River St E 310, Ketchum, ID 83340
By contacting this agent you agree to these Terms and Conditions.
MLS# 26-335084
$4,750,000
300 E River St E 310, Ketchum, ID 83340
2
Beds
3
Baths
1,499
Sqft
--
Acres
2 Beds
3 Baths
1,499 Sqft
-- Acres
Accessibility Features
Accessible Elevator Installed
The Observatory Sun Valley, A Viceroy Resort, offers twelve
The Observatory Sun Valley, A Viceroy Resort, offers twelve single-level penthouse residences with sweeping mountain views, with only eight remaining. This 2-bedroom east-wing residence features 2 en suite baths plus a powder room, with the second bedroom serving as a hotel lock-off. Terrace balconies offer eastern views up Trail Creek toward Dollar Mountain and the Pioneers. 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 east wing along Leadville Avenue, this residence offers 1,499 saleable square feet with eastern views up Trail Creek, toward the northwest slope of Dollar Mountain and the Pioneer Mountains. Featuring 2 bedrooms, 2 en suite baths plus a powder room, the residence includes a great room, laundry room, and dry bar with a Sub-Zero 42-bottle undercounter wine refrigerator. Terrace balconies are located off the great room and primary bedroom, while the second bedroom serves as a hotel lock-off room. 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.
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Property Details
HOME DETAILS
2 Beds
3 Baths
1,499 Sqft
Built in 2026
0.000 Acres
1 Story
EXTERIOR
Siding: Concrete
Membrane, Composition Roof
Has Swimming Pool
INTERIOR
Has Fireplace
Heat Pump (Heating), Radiant
FINANCIAL & COMMUNITY
Blaine County
See More Details
Location
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Ad Statistics
Ad Number
5597487
Viewed
9 times
Listing Status
Active
Added
Nov 06, 2026
Last Refreshed
Nov 08, 2026 10:14:12 PM
Listing Information
Data Source
Sun Valley Board of Realtors
Source Property ID
26-335084
Listing Agent: Burnett Properties 208-720-0906
Broker: Keller Williams Sun Valley Southern Idaho 208-622-7722 Listing Site
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.
Broker: Keller Williams Sun Valley Southern Idaho 208-622-7722 Listing Site
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.
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