Here an example for a solution, made for a building in Germany:
Floorplan: the building is a rotunde
Stage 1: Renovation supply floor, central core and fibre check.
Stage 2: Renovation 3. floor and fibre check.
Stage 3: Renovation 2. floor and fibre check.
Stage 4: Renovation 3. floor and fibre check.
Stage 5: Renovation ground floor, fibre check and final clearing of the whole building.