They've used LED tape on the top of the decorative cornicing which is set 100mm ish lower down from the smooth plastered ceiling. Beautifully done but very expensive as a very time consuming job.
Correct, thanks to above poster!
Yes it's all plastered and a recess has been left to conceal LED lighting above the cornice.
Need help with dividing bedroom from living area in small granny flat
Bench top and cabinetry colour to go with mixed colour slate
How do we heat and light a bathroom with three-metre ceilings?
Before & after: From dated kitchen to modern stunner