Lyndhurst is clad in Sing Sing marble and was designed by Alexander Jackson Davis. In 1838, David created a Gothic villa for William Paulding, a former mayor of New York City. The mansion later doubled in size after David added a four-story tower and porte cochere for New York businessman George Merritt. The house  features stained glass and murals as well as a dining room created to resemble a medieval banquet hall and a two-story-tall art gallery.