AMMA Development office is in the historical center of Moscow. The existing office space consists of two levels, ground and underground, with the total floor area of 180m2. The entrance of the office is separated from the actual entrance of the building with an extension. The purpose of the new interior design requirement was to divide the existing office space into an office, a private resting room and redesign the entrance extension. The concept of the new design is mainly concentrated around maximum use of daylight in the office premises, which are mostly on the underground level. Simple but carefully planned and detailed new design of the premises creates healthy and efficient spaces for both public and private use.