Back-to-back houses maximize density at the expense of daylight, ventilation and open space. This proposal for a three-story four-person household attempts to minimize those inherent disadvantages.
The L-shaped plan increases the external surface area to get windows closer to the rear of the plan. Placing the stairs at the corner of the L means that that window area is not wasted.
The middle floor is open but has two distinct living areas, each with a large corner window. The kitchen/dining area overlooks the outdoor space while the living room has long views along the street as well as across it.
An open skylight above the stairwell increases ventilation.