what does one and a half storey mean
Storey Split-level homes have floors that offset from each other by less than the height of a full storey. A mezzanine, in particular, is typically a floor halfway between the ground floor and the next higher floor. Homes with a split-level entry have the entire main floor raised half a storey height above the street entrance level, and a basement that is half a storey below this level. In Macy's Herald Square, there is a "one-and-a-half" floor between the first and second; this can be considered a split level floor.