Demolition of the single storey back addition and rear outbuildings attached to the rear of the main building; erection of side and rear extensions at lower ground, upper ground and first floor level, erection of a rear roof extension to replace the existing dormer window, excavation beneath the main building in connection with the creation of a new basement and the formation of a roof terrace at upper ground floor level to the main building; change of use of the main building from office (Class E) into 2 x two bedroom self-contained flats; erection of a part one storey plus-basement single family dwellinghouse in the rear garden; erection of a new boundary wall with three new entrances to the side elevation; associated landscaping and external alterations.

Non-material amendment to planning permission ref: 2014/03920/FUL granted 27th August 2015 for the 'Demolition of 1 & 2 Rowley Cottages; demolition of rear of 6 Avonmore Road; erection of 5 mews houses (two storey over basement); refurbishment and reconfiguration of Leigh Court (including installation of dormer windows and balconies in the rear) and 6 Avonmore Road to provide 15 flats with associated cycle parking, refuse storage and landscaping.' Amendments to include re-location of the bin storage for occupiers of the mews block to a communal storage area, revisions to basement and ground floor of mews units 1-3.