Most contractors can find a space in the home about the size of a closet-stacked above each other to accommodate an elevator.
Almost all models run on Standard 220 V single phase system.
It can be up to 15 square feet.
Between 750 to 950 pounds.
50 Feet Maximum - up to 6 stops.
If there is room available for a machine room - then the hydraulic could be the best way to go. It is the quietest elevator on the market.
For those where space is limited then a machine roomless drives are available.
5 year inspection is required for an owner occupied piece of equipment with a State Inspector.