McLaren Excell restores and extends a listed 18th century cottage in Hampstead

London-based interior design and architecture studio, McLaren Excell, has completed the restoration and extension of a listed semi-detached 18th-century cottage in Hampstead, London. The removal of a 1950s side extension allowed for the addition of a corten steel-clad extension at the lower ground floor level. The interior of the Regency building has been restored to its original 1820s state, while the new extension features shuttered in-situ concrete walls and coffered ceilings. The Douglas fir boards used for shuttering have been re-used for the internal joinery. Photo of corten-clad extension by Simone Bossi. McLaren Excell