1 Chesterfield Street London W1J 5JF
Variation of Condition 1 of listed building consent dated 12 February 2020 (RN: 19/10031/LBC) for, 'Use of the basement as offices (Class B1), erection of single storey extension at rear third floor level, installation of air-conditioning units within vaults at lower ground floor level and extractor fan at roof level and associated works of internal and external alterations to 1 Chesterfield Street and 16A Curzon Street'; NAMELY, internal and external alterations including; infilling of vault openings; replacement of a door with a sash window to front area; introduction of maintenance access openings to the new link within the Chesterfield Street elevation; rationalisation of external services to improve roof drainage; introduction of service trenches to lightwell; removal of window horns; and introduction of ventilation grilles to the elevation at lower ground floor level.