PRP Architects has designed a £250,000 extension to a building used by Buddhist group Soka Gakkal International in Acton, west London. The extension, containing a glazed gallery and curved copper roof, will be used by up to 120 people. 'We have been sensitive to the future use of the building and its garden outlook, ' said PRP project leader David Housego. 'With a lightweight structure of timber and glass, the sense of light and space is maximized and good views of the garden are provided to encourage contemplation and relaxation.' A planning application has been submitted to the London Borough of Ealing.