She is building a ￡90m glass and steel mansion set in 21 hectares (52 acres) of Cheshire parkland. The house include an artificial lake, sunken tennis courts, stables, ornamental gardens, workers’ cottages and a boathouse. In December 2018, it emerged Coates spent ￡5.5m buying up hundreds of acres of farmland that surrounds her new futuristic home – designed by the Foster and Partners architecture practice – in order to maintain her privacy. She also planted 200 trees and erected a 2 metre security fence around the property.