This study was conducted to examine how our visual impression of the lighting space will change when the ratio of the amount of daylight from a window to light from an entire ceiling is changed. In order to evaluate the subjective impression of illuminance distribution for lighting conditions, this study adopted an experimental method using scale models and full-size model. The standard box(or standard space) was lit by only the light from the entire ceiling, and the evaluation box(or evaluation space) was lit by the light from the window and the light from the entire ceiling. Subjects were asked to rate their overall impression for the state of light in the evaluation box by comparing with standard box. Our findings indicate that the compound ratio of 20 to 40% from the window and 80 to 60% from the ceiling would be beneficial in terms of psychological impression for ordinal office spaces.