Designed by Horace Trumbauer, whose work includes the Philadelphia Museum of Art, the Gilded Age mansion offers more than 10,000 ft² / 929 m² of space, commercial mixed-use zoning, and potential for hospitality, residential, office, or gallery use.

With a listing price of $19.5 million and starting bids ranging from $7.5 million to $14 million, bidding for this exceptional estate opens on January 16 at 4:00 PM EST and closes on January 29, 2025, at 4:00 PM EST, offered through Sotheby’s Concierge Auctions.

Known as ‘Mozart’s Last Castle’, Schloss Stuppach near Vienna, Austria is accepting bids until December 14, 2023 in an online auction arranged by Michaela Orisich of Austria Sotheby’s International Realty and Concierge Auctions.

The Controni Estate, a luxurious hospitality estate near Lucca, Italy is hitting the Concierge Auctions block May 27-June 2. The nearly 50 acre Tuscan estate set in the rolling hills of Vorno is being sold in its entirety, as a portfolio of 6 properties from the exclusive Coselli Collection.