The Bill Koch estate in Aspen is under contract for $33.5M following a no-reserve auction, marking a significant drop from its original $125M asking price. As part of the auction terms, a 12.75% buyer’s premium is added on top of the purchase price. According to the WSJ, the transaction is currently pending and expected to close in approximately 30 days. The auction opened apparently with a minimum acceptable bid of $25M, saw bidding reach $30M, and ultimately settled at $33.5M. While real estate contracts can always fall through before closing, the dramatic price adjustment (below replacement value in my opinion) suggests a line of prospective buyers may be waiting ready to pounce should the current deal collapse. (Photos courtesy of Compass Aspen)
But. It is a unique residential property and maybe not…?
I think the question many brokers and others are asking is, “Why didn’t the seller simply lower the price rather than going to auction? The answer is probably that unique circumstances may have made the most sense to this seller and steered him to the auction block. I have witnessed sellers capitulate when they simply wanted or needed a deal done, and the desire to move forward overruled their consideration of the possible financial loss. I do not believe this should be viewed as representative of the Aspen market at large even though the 1st Half 2026 has experienced a significant slow-down.
The Setting and History
Formerly known as Elk Mountain Ranch, the property was a well-known wedding and special events venue beloved by Aspenites and travelers.
125 Rooney Circle is located approximately 10 miles up Castle Creek Road from the Aspen roundabout, a scenic 15–18 min drive in normal conditions; 20–25+ minutes during peak summer traffic or winter driving conditions. The property is set behind a private gate directly across from the American Lake Trailhead.
For those familiar with Castle Creek Road, the property is located approximately 1 – 1.5 miles before Toklat, once home to Stuart Mace’s legendary Toklat Husky Kennels, established in 1948, whose Alaskan sled dog teams were an enduring part of Aspen’s mountain heritage. As a kid, I vividly remember these sled rides and the beautiful Alaskan Malamute and Siberian huskies, think Nanook of the North and the famous dog Balto. It was really like that.
Since 2004, the Toklat property has been owned by Aspen Center for Environmental Studies (ACES). Following a major restoration, it is now the Catto Center at Toklat, a wilderness retreat and environmental education center.
And, the property is a few minutes before the historic 1880’s mining town of Ashcroft, now a well-preserved ghost town, once considered to be the original site in the mid-late 1930’s for the Aspen ski area before plans were abandoned with the onset of World War II.
Beyond Ashcroft, the paved road ends at the Pine Creek Cookhouse, one of Aspen’s most memorable mountain dining destinations. In winter, guests travel about a mile or so from the parking area to the restaurant by horse-drawn sleigh through a snow-covered valley and forest. Simply magical.
The property represents a transition from the residential Castle Creek corridor into the protected Ashcroft Valley, surrounded by National Forest lands, hiking trails, abundant wildlife, and some of the most spectacular alpine scenery in the Aspen area. It is an area of exceptional privacy, quietness and a true mountain setting.
Property and Listing History (MLS #186834 – 125 Rooney Circle, Aspen, CO 81611)
Pitkin County Assessor Property Report
Auction site with details and photos
