loft
n. countablen. the space or room just under the roof of a house. People often use it for storage or turn it into an extra bedroom.
n. an upper room or storage area located directly under the roof of a building. In modern urban contexts, it frequently refers to a large, open-plan living space converted from a former industrial building.
We keep all our old suitcases in the loft.
The architect suggested converting the dusty loft into a bright home office to increase the property value.
While traditional lofts served primarily as hay storage or attic space, the late twentieth century saw a surge in industrial lofts being repurposed as high-end residential studios.
Often used in the phrase 'loft conversion' to describe the process of turning an attic into a living space.