This image was adapted from a picture posted to publicdomainq.net. All of the images on this site are in the public domain i.e. CC0. This site is only in Japanese but can be easily navigated with Google Translate.
公寓樓
apartment、Baby、building、condominium、flat、high、home、mansion、rise、Scene Materials
公寓、寶寶、建造、共管、平面、高、家、大廈、上升、場景材料
資料來源：openclipart ( https://openclipart.org/ )