Chapple was close to Burges and was one of the executors of his will. On Burges"s death, Chapple wrote "a constant relationship..with one of the brightest ornaments of the profession has rendered the parting most severe. Thank God his work will live and. be the admiration of future students.
I have hardly got to realize my lonely position yet.
Chapple also worked with Pullan and William Frame in completing a number of Burges"s unfinished works, including Cardiff Castle, and Castell Coch, the fantasy palaces Burges designed for John Crichton-Stuart, 3rd Marquess of Bute in South Wales. At Castell Coch, Chapple was responsible for much of the furniture, including the elaborate suite in Lady Bute"s bedroom.
He also completed Street Michael"s Church, Brighton. Chapple retired in 1911 and died at Barnet in 1922.