Since the shogunate had created Yokohama settlement on its own initiative, the settlement was initially constructed in Japanese style, but after the great fire of 1866 called the "Buta ya kaji" (so named because the fire started in a pork merchant's establishment), the settlement was rebuilt in Western style.
横浜居留地は幕府が勝手に造成したため当初は日本風の造りであったが、1866年の大火"豚屋火事"の後、洋風に改められた。