This is a letter C Type construction where a part of the building is kept open and on remaining three side is constructed. these type of constructions are also called Choolha type constructions. They are named based on directions kept open i.e.
East opening ……..Poorvi Choolha
West opening…….Paschmi choolha
North opening……Uttri Choolha
South Opening…… Dakshni Choolha
Only East and North opening buildings are recommmended and accepted strongly since these are Source side and passage of Earth magnetic and cosmic energy is open and these energy find free passage for flow.