Patent ID: 8033067

Claim:
A multi-level building, comprising: at least one vertical segment, each of said at least one vertical segment being comprised of at least one pair of first and second apartment units and a public corridor that provides access to said first and second apartment units, each of said first and second apartment units including at least four floor levels suitable for habitation, a first one of said floor levels being substantially co-planar with a floor level of said public corridor, said first apartment unit being rotated 180 degrees in plan in relation to said second apartment unit about said public corridor, in each of said first and second apartment units, said first floor level and a second one of said floor levels extending from a plane of a wall containing an entry into said apartment unit to a building façade on a first side of said public corridor on which the wall containing the entry from said public corridor into said apartment unit is situated, a third one of said floor levels extending beneath said public corridor to a building facade on a second side of said public corridor opposite to said first side such that said third floor level extends in a direction opposite to the direction in which said first and second floor levels extend from said public corridor, a fourth one of said floor levels extending above said public corridor to the building facade on the second side of said public corridor opposite to said first side such that said fourth floor level extends in the same direction as said third floor level extends from said public corridor; and a stair system arranged in each of said first and second apartment units to connect said at least four floor levels, wherein said first and second apartment units of said at least one apartment pair are arranged such that said first floor level of said second apartment unit is situated between said third and fourth floor levels of said first apartment unit and said first floor level of said first apartment unit is situated between said third and fourth floor levels of said second apartment unit.