To provide a building which has an excellent installation location for placing a storage battery and in which the storage battery can be easily installed.

A unit building 1 includes a roofed balcony 2 which is configured by assembling four building units 11, 11, 11 and 11 for the first floor, three building units 21, 21 and 21 for the second floor, a balcony unit 22 for the second floor, and four roof units 31, 31, 32 and 32. In a factory, a storage battery 4 is preinstalled at a corner portion at which a floor surface 22a of the balcony unit 22 and a wall surface 22b thereof cross each other.