heritage protection has listed 30 properties. Mechanics' Institute, Sorrento was built in 1877 using local limestone and the building, which is now classified by the National Trust of Australia, houses the Nepean Historical Society's museum. Other notable limestone buildings still standing include: Sorrento Hotel (1872), Anglican Church (1875 nave, 1889 transept), Athenaeum Theatre (1894), Continental Hotel (1875), Whitehall Guest House (1904). The Koonya Hotel and Morgans (both on the foreshore, currently known as Italico restaurant) were built by the Skelton/Clark family. The sandstone Presbyterian Church was built around 1880. Ophir House, opposite the Masonic Lodge, a miniature Whitehall, was replaced by contemporary units.