Roughly one month per level for excavation. Not including the podium and mechaninical floors and amenity floors, four to seven days per floor upward.
Add a 6 months for glazing to catch up to the roof and completion of interiors.
Add 6 months to one year for registration from time of first occupancy, at which time the above mentioned is happening simultaneously.
Of course, this is very rough.
Remember, it is in the best interest of the builder to finish as soon as possible as the end of construction has the most interest being paid, and the builder can't cash out until the building closes.
