The interior of the house suffered from its demotion to a tenant farm and from a fire in the early 19th century; after being almost derelict it was repaired under the supervision of Alfred Hoare Powell. Barrington Court was acquired by the National Trust in 1907 and was leased to Col. Abram Arthur Lyle of Tate & Lyle in the 1920s. Abram Lyle and his wife, Elsie Ronalds Lyle (nee. Crowdy and known as 'Ronnie') turned the house around and refurbished the court house and renovated Strode House (built by Colonel Strode's son, William III, in 1674) which was originally a stable and coach block. It was at this time that the Lyles contracted Gertrude Jekyll to design the three formal gardens on the property that are maintained by the head gardener.