This traditional layout is normally called a maisonette, especially if the building is older, but the term "duplex" is increasingly used by estate agents because of the perceived glamour of the term.
Urban House Detail
Section of B axis view of
Triple Storey House Design
65 By 71 Feet House Master
Trade electrical layout pl
Collective housing buildin
2 Storey House Building Se
Bungalow plan and elevatio
First floor beam arrangeme
2d cad drawing of layout p
A column section detail of
Right side elevation of 20