Welcome to our website dedicated to Prospect Place , Dresden-Trinway, Ohio. Mansion details: Builder: George Willison Adams Date: 1856 - 1857 Style: Greek Revival / Italianate Square Footage: 9500 sq/ft Ceiling Height: Main House - 14 feet / Servants Wing - 12 feet We are open for tours Sunday at 1 p.m. We have temporarily suspended other tours due to a lack of tour guides. If you would like ...