# 300 E River St E #335, Ketchum, ID 83340 > **TL;DR:** 2bd/3ba condo, $5,200,000 ($3385/sqft), built 2026, 1,536 sqft. > Fireplace, 2-car garage. Est. $27,811/mo. Listed 6 days. ## Property at a Glance | Attribute | Value | |-----------|-------| | Price | $5,200,000 | | Price/sqft | $3385 | | Bedrooms | 2 | | Bathrooms | 2 full, 1 half | | Square Feet | 1,536 | | 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%) | $26,294 | | Estimated Insurance | $1,517 | | **Total** | **$27,811** | ## Key Amenities - Fireplace - 2-car garage ## Property Highlights - Built in 2026 - Fireplace ## 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 2-bedroom, 2-bath west-wing residence features full western views of Bald Mountain, including the Roundhouse and Seattle Ridge. 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 west wing on the Highway 75 side, this 1,536-square-foot residence features 2 bedrooms, 2 bathrooms, and full western views of Bald Mountain, the Roundhouse and Seattle Ridge. The floor plan is virtually a mirror image of Residence 310. 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 #335, Ketchum, ID 83340 - **County:** Blaine - **Coordinates:** 43.678985, -114.361242 - **Google Maps:** https://www.google.com/maps?q=43.678985,-114.361242 ## 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=335088&c=propsimple) ## Photos ![300 E River St E #335 - Photo 1](http://lh.rdcpix.com/311782a1d8fd50ed361f461316a8e57dl-f3552000840r.jpg) ![300 E River St E #335 - Photo 2](http://lh.rdcpix.com/311782a1d8fd50ed361f461316a8e57dl-f60273731r.jpg) ![300 E River St E #335 - Photo 3](http://lh.rdcpix.com/311782a1d8fd50ed361f461316a8e57dl-f980030186r.jpg) ![300 E River St E #335 - Photo 4](http://lh.rdcpix.com/311782a1d8fd50ed361f461316a8e57dl-f2518331464r.jpg) ![300 E River St E #335 - Photo 5](http://lh.rdcpix.com/311782a1d8fd50ed361f461316a8e57dl-f1865536191r.jpg) ![300 E River St E #335 - Photo 6](http://lh.rdcpix.com/311782a1d8fd50ed361f461316a8e57dl-f3386041900r.jpg) ![300 E River St E #335 - Photo 7](http://lh.rdcpix.com/311782a1d8fd50ed361f461316a8e57dl-f1685342091r.jpg) ![300 E River St E #335 - Photo 8](http://lh.rdcpix.com/311782a1d8fd50ed361f461316a8e57dl-f3153764367r.jpg) ![300 E River St E #335 - Photo 9](http://lh.rdcpix.com/311782a1d8fd50ed361f461316a8e57dl-f4157809413r.jpg) ![300 E River St E #335 - Photo 10](http://lh.rdcpix.com/311782a1d8fd50ed361f461316a8e57dl-f2135985516r.jpg) ![300 E River St E #335 - Photo 11](http://lh.rdcpix.com/311782a1d8fd50ed361f461316a8e57dl-f1201123385r.jpg) ![300 E River St E #335 - Photo 12](http://lh.rdcpix.com/311782a1d8fd50ed361f461316a8e57dl-f349845608r.jpg) ![300 E River St E #335 - Photo 13](http://lh.rdcpix.com/311782a1d8fd50ed361f461316a8e57dl-f3964254425r.jpg) --- **MLS#:** 26-335088 | **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-83340-6e5f3a889d7a4dc0a949991ed780049a) --- ## Structured Data ```json { "@context": "https://schema.org", "@type": "RealEstateListing", "@id": "https://www.propertysimple.ai/listing/300-e-river-st-e-ketchum-id-83340-6e5f3a889d7a4dc0a949991ed780049a#listing", "url": "https://www.propertysimple.ai/listing/300-e-river-st-e-ketchum-id-83340-6e5f3a889d7a4dc0a949991ed780049a", "name": "300 E River St E #335, 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. This 2-bedroom, 2-bath west-wing residence features full western views of Bald Mountain, including the Roundhouse and Seattle Ridge. 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