The original Antrim Castle, now a ruin, was originally built in 1613 by Sir Hugh Clotworthy and enlarged in 1662 by his son, the 1st Viscount Massereene. The Castle, as country house was built in 1813 as a three-storey Georgian-Gothic castellated mansion. The original doorway, most elaborate and ornate and complete with Ionic pilasters, heraldry and a head of King Charles I became a central feature of the new 4-bay entrance front, with a long, adjoining front of 180 feet with 11 bays; mullioned oriels and a tall, octagonal turret were added in 1887 when the Castle was again enlarged. Destroyed by fire in 1921, during a dinner party, when it was stormed by insurgents. Many interior fittings were saved but the house was never rebuilt. It is said that the insurance was never paid out, as the owners couldn’t prove arson to the satisfaction of the insurance company.