Use of existing single storey detached garden outbuilding as lounge/office accommodation incidental to main dwellinghouse

Details of sound Insulation of the floor/ceiling/walls separating communal facilities/areas from dwellings pursuant to condition no.10 of planning permission ref.172598FUL dated 01.11.2018 for 'Change of use of building from shop, office, warehouse and residential flats (Use classes A1, A3, B1, B8 & C4) to residential units (Use class C3) to provide thirty-six self-contained flats within a four storey building including accommodation in the roof space incorporating part 2, part 3 storey side extension with associated cycle parking, bin storage and amenity space'

Details of sound insulation separating different types of rooms/uses in adjoining dwellings pursuant to condition no.9 of planning permission ref.172598FUL dated 01.11.2018 for 'Change of use of building from shop, office, warehouse and residential flats (Use classes A1, A3, B1, B8 & C4) to residential units (Use class C3) to provide thirty-six self-contained flats within a four storey building including accommodation in the roof space incorporating part 2, part 3 storey side extension with associated cycle parking, bin storage and amenity space'