Vassals were ordered to live in castle towns, and it is supposed, for example, from Rakuchu Rakugaizu Byobu (urban areas and suburbs of Kyoto, a folding screen) by Eitoku KANO, that buildings in urban areas (such as Machiya (traditional townhouses found mainly in Kyoto) and samurai residences) had progressed as well.
家臣は城下町に住むよう命じられ、狩野永徳の洛中洛外図屏風などから、都市建築（町屋、武家屋敷など）も発達してきたことが伺える。