There are different kinds of elevators. For condominiums I assume you are considering a passenger elevator. In the simplest terms, hydraulic elevators (generally cheaper) are good for low rises and traction elevators (generally more expensive) are for high rises. Besides the obvious initial cost of the elevator, machines and accessories, the number of floors will determine the price. Contact some well-known elevator manufacturers for more info. Otis Elevator, Schindler Elevator and Kone Elevator are some of the better known ones. It’s impossible to just throw a number out for elevators however for ballpark, consider budgeting in $20k to $40k for each floor.