$11,750,000
Ketchum, ID 83340
MLS# 26-335089
4 beds | 4.5 baths | 3480 sqft
1 / 12
Property Description
The Observatory Sun Valley, A Viceroy Resort, offers twelve single-level penthouse residences with sweeping mountain views, with only eight remaining. The only 4-bedroom residence remaining features 4 en suite baths plus a powder room, an approx. 900 SF partially covered terrace, and unobstructed views of Bald Mountain, the southern hills, Wood River Valley and Dollar Mountain.
Details
Maps
Location, Tax and Misc
Prjct Condo/Townhse: 300 River Street East Condominiums
Unit #: 350
Legal: 300 River Street East Condominiums, Unit 350
List Price Per SqFt: 3376.44
Taxes: 0
Tax Year: 2026
Green Features: No
Remarks & Misc
Possession: On Closing
General Property Description
HOA Company Name: Viceroy Hotel Group
New Construction: Yes
Total SqFt Livable: 3480
SF Per: Architect
Waterfront: No
Bedrooms: 4
Baths: 4.5
Year Built: 2026
Geo Lat: 43.678984
Geo Lon: -114.361241
Contract Info
Concession Negotiable: No
Directions: Downtown Ketchum, the Observatory Hotel. Corner of Main Street and River Street East.
Status: Active
List Date: 2026-11-05
Basement
None: 1
Construction Type
Site-built (Stick): 1
Concrete: 1
Documents
Plat: 1
Driveway
Heated: 1
Exterior Finish
Steel: 1
Stone/Rock: 1
Wood: 1
Features Exterior
Assn Hot Tub: 1
Assn Pool: 1
Balcony: 1
Deck: 1
Storage Closet: 1
Views: 1
Features Interior
Air Conditioning: 1
Elevator: 1
Fire Sprinkler: 1
Fireplace Gas: 1
LED Lights: 1
Pantry: 1
Walk-in Closet: 1
Window Coverings: 1
Wood Flooring: 1
Garage
2 Car: 1
Heated: 1
Underground: 1
Heat
Heat Pump: 1
Radiant-Floor: 1
Items Included
Disposal: 1
Dryer: 1
Hood Fan: 1
Microwave: 1
Oven - Elec: 1
Range - Elec: 1
Refrigerator: 1
Washer: 1
Power
Electrical: 1
Road Access
Public: 1
Road Surface
Paved: 1
Roof
Composition: 1
Membrane: 1
Other: 1
Sewer
City/Public: 1
Specialty Rooms
Dining Area: 1
Great Room: 1
Laundry: 1
Walk-in Closet: 1
Style
1 Story: 1
Contemporary: 1
1st Floor Primary: 1
Terms
Cash: 1
Water
City Connected: 1
Water Heater
Other: 1
Waterfront
No: 1
Zoning
K/T: 1
Other Disclosures
CC & R's: 1
Land Ownership Type
Fee Simple: 1
Association Fee Includes
Insurance: 1
Maintenance Structure: 1
Sewer: 1
Snow Removal: 1
Trash: 1
Water: 1
Location Tax and Misc
Current Price: $11,750,000
Sub Type: Condominium
Area: Ketchum
Street Number: 300
Street Direction Pfx: E
Street Name: River
Street Suffix: St
Street Direction Sfx: E
State/Province: ID
Zip Code: 83340
County: Blaine
Subdivision: N/A
Assessor's Parcel #: RPK00000830020
List Price: $11,750,000
Property Features
Zoning: K/T
Driveway: Heated
Road Surface: Paved
Road Access: Public
Water: City Connected
Sewer: City/Public
Power: Electrical
Features Exterior: Assn Hot Tub; Assn Pool; Balcony; Deck; Storage Closet; Views
Land Ownership Type: Fee Simple
Waterfront: No
Construction Type: Site-built (Stick); Concrete
Style: 1 Story; Contemporary; 1st Floor Primary
Specialty Rooms: Dining Area; Great Room; Laundry; Walk-in Closet
Basement: None
Garage: 2 Car; Heated; Underground
Features Interior: Air Conditioning; Elevator; Fire Sprinkler; Fireplace Gas; LED Lights; Pantry; Walk-in Closet; Window Coverings; Wood Flooring
Items Included: Disposal; Dryer; Hood Fan; Microwave; Oven - Elec; Range - Elec; Refrigerator; Washer
Heat: Heat Pump; Radiant-Floor
Water Heater: Other
Exterior Finish: Steel; Stone/Rock; Wood
Roof: Composition; Membrane; Other
Association Fee Includes: Insurance; Maintenance Structure; Snow Removal; Trash; Water
Documents: Plat
Other Disclosures: CC & R's
Terms: Cash
Supplements
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.
West wing, Highway 75 side, south and east views with full unobstructed views of Bald Mountain, the southern hills and down the Wood River Valley, and views east to Dollar Mountain. 3,480 saleable square feet. The only four-bedroom, 4 ensuite bath and powder room, remaining for purchase. This includes an approximate 900 square foot exterior terrace assigned exclusively as limited common area. The exterior terrace is partially covered as well by the exterior "butterfly" roof that extends to the south.
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.
Listing Office: Keller Williams Sun Valley Southern Idaho
Listing Agent: Burnett Properties
Last Updated: November - 07 - 2026
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