The space on top of a house is called the attic.
An attic is a room or space located directly beneath the roof of a house. It is often used for storage, but it can also be finished and converted into livable space.
Attics are typically accessed by a staircase or a pull-down ladder. They can be ventilated to prevent moisture buildup and provide adequate airflow.
The size and shape of an attic can vary depending on the design of the house. Some attics have sloping ceilings, while others have flat ceilings.
Attics can be a valuable addition to a home, providing extra storage space or even livable square footage.