To get a spacious feel in a small house, choose an open floor plan design with a great room over walled compartmentalized rooms. This works particularly well in a small house.
Great rooms usually encompass the functions of a family room, living room, dining room, and kitchen in one shared space. For a small house, this might also include an office, study, or library. In a studio house, it would also include a bed area. Putting these spaces together in an open floor plan creates a comfortable amount of square footage. Putting them into separate walled rooms in a small house would make them feel cramped.
A creative interior design in a small house could make a great room look elegant and advanced. For example, you could create separation for an office or bed area with a split-level design or a loft. Or you could merge kitchen and dining activities into one location by putting a food preparation and eating area in a single unit like an island or counter.
For small houses, great rooms are the way to go. The more open the floor plan, the more spacious the feel.