Panteón de Agripa
Island House was built in 1774 to designs by John Plaw. It is unusual in that it is circular in plan, built of brick, three floors high with a four column portico; it draws closely on the Pantheon, Rome. The house was sold along with the island to the wealthy Curwen family who renamed the island after their daughter, Isabella. It was then sold on to Isabella Curwen by her family in 1781 for £1,720 and was permanently renamed after her. The descendants of Isabella and her husband John Christian Curwen lived on the island until 1993.