From 2003, when he was 19 years old, until 2012, Prince Harry's official residence was at Clarence House in London with his father, Charles III. He had a bedroom and a study in the 19th-century Regency-style estate, which is still the London residence of King Charles. Designed by architect John Nash, the historic house was built between 1825 and 1827 for the Duke of Clarence, who would become King William IV.