Daimyo residences such as as those of the Tokugawa gosanke in Fukiage were relocated to Kioi-cho Town outside the Manzo-mon Gate, and large empty lots and gardens were established to prevent fires from spreading to neighboring areas.
これまで吹上にあった御三家の屋敷が半蔵門外の紀尾井町に移されるなど大名屋敷の配置換えが行われ、類焼を防ぐための火除地として十分な広さの空き地や庭園が設けられた。