A lighting apparatus which illuminates a predetermined surface of a building structure includes: a light emitter that emits illuminating light; and a determiner that determines an illumination region in such a way that at least a portion of an edge of the illumination region, which is to be illuminated with the illuminating light emitted by the light emitter, matches a predetermined reference point on the boundary between the predetermined surface and a surface adjacent to the predetermined surface. The light emitter adjusts the illuminating light to illuminate the predetermined surface according to the illumination region determined by the determiner.