The Tregothnan Estate, located near Truro in Cornwall, UK, is the traditional home of the Boscawen family, and the seat of Lord Falmouth. The original house was built in Plantagenet times and sacked in the English Civil War. The new house has the date 1652 carved in stone above the side gate. It was enlarged in the early 19th century to designs by William Wilkins, the architect of the National Gallery in London. Tregothnan is famous for its large private botanic garden and arboretum. Tregothnan is not open to the public, but guided visits to the garden may be arranged. A tea plantation has recently been started on the grounds. In 1872 Viscount Falmouth of Mereworth Castle, Maidstone, Kent, was listed in the top ten land holdings in Cornwall with an estate of 25,910 acres or 3.41% of the total area of Cornwall.