Efficiency apartments in Dubai, or studio apartments, operate under this idea. As a result, you'll only encounter minimal restrictions like walls and space delineation. In India, what is a studio flat?  The typical layout is open, but this might change depending on the city or the region. Because there doesn't seem to be a clear distinction between the two, a one-room and kitchen (1RK) house, for instance, is also promoted as a studio apartment. The size of a studio apartment can range from 250 to 700 square feet, depending on the developer's brand, demand, location, etc.