One Brompton SW5 Timeline News and progress updates from One Brompton new development in SW5 Post a new milestone Only the penthouse remaining with a guide price of £4,250,000. Contact Knight Frank for details. 02/07/2019 by Buildington One Brompton preview morning, hosted by Knight Frank, takes place today 30th January 2019 at KX Clubroom. 30/01/2019 by Buildington One Brompton development by The Thackeray Estates in Chelsea, London SW5, is launching in May 2018! 06/05/2018 by Buildington