Hajo is series of doll houses based on unique architecture presenting high quality design and a fresh point of view. It's wooden construction is easy to assemble. Some parts of the model are movable, so you can open rooms, roofs, doors as well as look through the ceiling into the living room. The entire first floor is also removable, which allows you to play in the ground floor. All of that helps to understand how the building was designed and how it worked during everyday live.

Hajo No.1 – House designed for friends by architect Jan Szpakowicz in 1972.  

Unique building located in the middle of the forest. Tow floors, separated from each other present different character of space. The ground one being surrounded by sloped terrain, contains living room, hall, kitchen and a bathroom. All functions are defined by design of construction walls supporting from sliding up soil. The second floor, consists of 3 separated bedrooms – wooden boxes connected by big square terrace. 3 staircases lead to them from the first floor. As construction walls seamlessly connected with surrounding terrain, whole building become a part of the forest.