Ad #5597480
MLS #26-335091
The Observatory Sun Valley, A Viceroy Resort, offers twelve
300 E River St E 430, Ketchum, ID 83340
$11,950,000
3Beds
4Baths
3,484Sqft
--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 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 Features
3 Beds
4 Baths
3,484 Sqft
Built in 2026
0.000 Acres
1 Story
Siding: Concrete
Membrane, Composition Roof
Has Swimming Pool
Radiant, Heat Pump (Heating)
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
$11,950,000
3
Beds
4
Baths
3,484
Sqft
300 E River St E 430, Ketchum, ID 83340
By contacting this agent you agree to these Terms and Conditions.
MLS# 26-335091
$11,950,000
300 E River St E 430, Ketchum, ID 83340
3
Beds
4
Baths
3,484
Sqft
--
Acres
3 Beds
4 Baths
3,484 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 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.
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Property Details
HOME DETAILS
3 Beds
4 Baths
3,484 Sqft
Built in 2026
0.000 Acres
1 Story
EXTERIOR
Siding: Concrete
Membrane, Composition Roof
Has Swimming Pool
INTERIOR
Radiant, Heat Pump (Heating)
FINANCIAL & COMMUNITY
Blaine County
See More Details
Location
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Ad Statistics
Ad Number
5597480
Viewed
9 times
Listing Status
Pending
Added
Nov 06, 2026
Last Refreshed
Nov 08, 2026 08:56:08 AM
Listing Information
Data Source
Sun Valley Board of Realtors
Source Property ID
26-335091
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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