William Gray Warden House, Mediterranean Revival residence in Palm Beach, United States.

The William Gray Warden House is a two-story home at 112 Seminole Avenue in Palm Beach, Florida, built in 1922 to Addison Mizner's design. It combines Mediterranean Revival and Spanish Colonial Revival features, with stucco walls and red tile roofs. The house was listed on the U.S. National Register of Historic Places on August 1, 1984.

Architect Addison Mizner designed the house in 1922 for William Gray Warden, combining Mediterranean Revival and Spanish Colonial Revival styles. On August 1, 1984, it was listed on the U.S. National Register of Historic Places. It stands at 112 Seminole Avenue in Palm Beach, Florida.

The house carries the name of William Gray Warden, the owner for whom Addison Mizner designed it in 1922. Its 1984 listing on the National Register of Historic Places rests on that Mizner authorship and on the Mediterranean Revival and Spanish Colonial Revival design, not on public use: it has always been a private home on Seminole Avenue.

The house at 112 Seminole Avenue is a private residence, so only its exterior can be seen from the public street. Look for the stucco walls and red-tiled roofs typical of Addison Mizner's 1922 design. The house sits at coordinates 26.72139, -80.03556 in Palm Beach.

The listing on August 1, 1984, came 62 years after Addison Mizner designed the house in 1922. The National Register entry covers the building at 112 Seminole Avenue, a Mediterranean and Spanish Colonial Revival house in Palm Beach.