# 300 E River St E #420, Ketchum, ID 83340 > **TL;DR:** 2bd/3ba condo, $6,800,000 ($3203/sqft), built 2026, 2,123 sqft. > 2-car garage. Est. $36,368/mo. Listed 6 days. ## Property at a Glance | Attribute | Value | |-----------|-------| | Price | $6,800,000 | | Price/sqft | $3203 | | Bedrooms | 2 | | Bathrooms | 2 full, 1 half | | Square Feet | 2,123 | | Year Built | 2026 | | Stories | 1 | | Garage | 2-car | | Property Type | Condo (Condominium) | | Status | Active | | Days on Market | 6 | ## Estimated Monthly Costs | Category | Amount | |----------|--------| | Principal & Interest (20% down, 30-year at 6.5%) | $34,385 | | Estimated Insurance | $1,983 | | **Total** | **$36,368** | ## Key Amenities - 2-car garage ## Property Highlights - Built in 2026 ## Description ### Agent Description The Observatory Sun Valley, A Viceroy Resort, offers twelve single-level penthouse residences with sweeping mountain views, with only eight remaining. This top-floor, 2-bedroom residence features 2 en suite baths plus a powder room, office space, north-facing views to Griffin Butte and the Boulders, south-facing valley views, and partially exposed wood purlin ceilings. 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 just off the center of the building's connecting north-south section, this 2,123-square-foot residence is one of only two remaining on the fourth and top floor. Featuring 2 bedrooms, 2 en suite baths plus a powder room, the residence offers north-facing views to Griffin Butte and the Boulders from the great room and primary bedroom, while the second bedroom enjoys southern views down the Wood River Valley. The floor plan includes a spacious kitchen, pantry, laundry room, and office space. Partially exposed wood purlin ceilings reflect the building's distinctive butterfly roof design. 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. ## Location - **Address:** 300 E River St E #420, Ketchum, ID 83340 - **County:** Blaine - **Coordinates:** 43.678984, -114.361241 - **Google Maps:** https://www.google.com/maps?q=43.678984,-114.361241 ## Listing Agent - **Name:** Burnett Properties - **Brokerage:** Keller Williams Sun Valley Southern Idaho - **Broker Phone:** (208) 622-7722 - **Listing URL:** [View original listing](https://www.realtor.com/realestateandhomes-detail/300-E-River-St_Ketchum_ID_83340_M99517-02014?f=listhub&s=SVBORID-26&m=335090&c=propsimple) ## Photos ![300 E River St E #420 - Photo 1](http://lh.rdcpix.com/f5a08af2fecd1eb069e6784e1edc0f51l-f3552000840r.jpg) ![300 E River St E #420 - Photo 2](http://lh.rdcpix.com/f5a08af2fecd1eb069e6784e1edc0f51l-f60273731r.jpg) ![300 E River St E #420 - Photo 3](http://lh.rdcpix.com/f5a08af2fecd1eb069e6784e1edc0f51l-f980030186r.jpg) ![300 E River St E #420 - Photo 4](http://lh.rdcpix.com/f5a08af2fecd1eb069e6784e1edc0f51l-f1775438015r.jpg) ![300 E River St E #420 - Photo 5](http://lh.rdcpix.com/f5a08af2fecd1eb069e6784e1edc0f51l-f1865536191r.jpg) ![300 E River St E #420 - Photo 6](http://lh.rdcpix.com/f5a08af2fecd1eb069e6784e1edc0f51l-f690843927r.jpg) ![300 E River St E #420 - Photo 7](http://lh.rdcpix.com/f5a08af2fecd1eb069e6784e1edc0f51l-f2270474347r.jpg) ![300 E River St E #420 - Photo 8](http://lh.rdcpix.com/f5a08af2fecd1eb069e6784e1edc0f51l-f4157809413r.jpg) ![300 E River St E #420 - Photo 9](http://lh.rdcpix.com/f5a08af2fecd1eb069e6784e1edc0f51l-f2135985516r.jpg) ![300 E River St E #420 - Photo 10](http://lh.rdcpix.com/f5a08af2fecd1eb069e6784e1edc0f51l-f1201123385r.jpg) ![300 E River St E #420 - Photo 11](http://lh.rdcpix.com/f5a08af2fecd1eb069e6784e1edc0f51l-f3602615882r.jpg) --- **MLS#:** 26-335090 | **Updated:** 2026-11-06 **Source:** listhub *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.* [View on PropertySimple](https://www.propertysimple.ai/listing/300-e-river-st-e-ketchum-id-83340-e5e8355d086f43c79668573ce7e59426) --- ## Structured Data ```json { "@context": "https://schema.org", "@type": "RealEstateListing", "@id": "https://www.propertysimple.ai/listing/300-e-river-st-e-ketchum-id-83340-e5e8355d086f43c79668573ce7e59426#listing", "url": "https://www.propertysimple.ai/listing/300-e-river-st-e-ketchum-id-83340-e5e8355d086f43c79668573ce7e59426", "name": "300 E River St E #420, Ketchum, ID 83340", "description": "The Observatory Sun Valley, A Viceroy Resort, offers twelve single-level penthouse residences with sweeping mountain views, with only eight remaining. 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