Castle Design, founded in 2003 and recognized for its portfolio of award-winning, high-end residential interior design, announced its acquisition of St. Louis-based Kelly Johnson Design on Jan. 1.

A client demands input on design decisions. In your view, is this a welcome development? I absolutely welcome input! The best, best, best relationships—and the best results—come when the client, ...

Beginning with early motte-and-bailey fortifications around 900 CE, medieval castle design became increasingly sophisticated.