Andrew designed this addition to a beach house on Sullivan's Island. The existing building, a former church, was built in the 19th century with granite walls and a tower. The owner asked Andrew to design an addition that would look older than the Gothic structure. Drawing its details and textures from local historic military architecture and its form from a Romanesque keep, the castle addition is now the island's most whimsical landmark. Built with thick reinforced concrete walls, massive cypress timbers, and a geothermal heat pump, it is also among the most solidly constructed and sustainable buildings of its time. It was completed in 2010. Construction Slideshow