The island's main residence was in poor condition, so Cecil brought the prominent architect Sir Edwin Lutyens to see it in 1905, and later hired him to work on its renovation. Lutyens supervised rebuilding and extension in the Arts and Crafts style, completing the first works by 1910 and became a family friend, returning there throughout the remainder of his life, adding to his architectural designs, and guiding construction and renovation in multiple locations over the course of 30 years or so. Aside from the castle, these works included the dwelling known as the White House, and a family mausoleum. Cecil Baring and Lutyens engaged Gertrude Jekyll to work on tree planting, notably of sycamores, and the gardens near the castle.