 Minor adjustments were made to the main house, but his major improvement was the building of a new stable block to replace the one destroyed by fire in 1895, a new reservoir and pump house in the deer park, and a new power house fitted with duplicate steam-driven generators, dynamos and boilers.The 1840s brew house, laundry and dairy range were converted to accommodate the estates staff.Courtenay's son, Evan Morgan, 4th Baron, 2nd Viscount Tredegar, poet and noted eccentric with links to Aldous Huxley, Lord Alfred Douglas, Augustus John, Nancy Cunard and H. G. Wells, then owned Ruperra.