Indoor spaces required to have efficient lighting
Technical Clarification Number
The indoor spaces that are required to have at least 90% of the lamps to be of the efficient type includes all lighting that is under the control of the home owner and not the building managers.
For Homes this is the Gross Internal Area:
All habitable spaces, including living rooms, dining rooms, kitchens, bathrooms, bedrooms, corridors, and utility, balcony and service shaft.