The selective/partial demolition of employment buildings and the conversion of remaining buildings (with associated construction /refurbishment works, such as replacement windows and doors, new roofs, etc) and a two-storey rooftop extension (above Alsol House) to create a total of 155 mixed residential units (146 apartments and 9 town houses), landscaped amenity space, 118 car parking spaces (7 of which for dedicated disabled use), 124 cycle parking spaces and refuse stores, to be accessed from/to Litherland Road and (exit only) onto Well Lane