In April 2026, brothers Dick and John Wheelock are giving Treowen, its historic gardens and parkland to a new Charitable Incorporated Organisation, Treowen CIO. This not-for profit organisation will be run by a board of volunteer trustees with a wide range of expertise. The Trustees’ aim is to manage Treowen in a way that preserves and enhances its unique character and history and makes this accessible to the public as well as continuing to operate as a holiday and events venue.

Treowen is a Grade 1 listed early 17th-century manor house, situated between Monmouth and Dingestow. The Jones (later Herbert) family who built it, moved to Llanarth Court near Abergavenny in the 1670s and Treowen was let as a farmhouse for the next three centuries. In the 1930s, Ivor Herbert, who had taken the title Lord Treowen in 1917, had extensive restoration works carried out, essential to the survival of the house, and creating much needed work for local men during the depression.

Sold to settle death duties in 1945, the Wheelock family bought the house and farm in 1954. Richard and Hilary Wheelock and their family moved to Treowen from a farm in Shapwick on the Somerset levels. The family chartered the last special train to arrive at Dingestow station to transport all the farm machinery and livestock (except for the milking herd which came by road so the cows could be milked morning and evening). The Wheelock family later bought Dingestow station after the railway line closed and started a business, Welsh Calf Producers there.

Over the last three decades the Wheelock brothers have carried out extensive restoration of the house, garden and estate, converted farm buildings to homes for local people and invested in renewable energy to heat these homes as well as the historic House