Sōsuke's House

Sōsuke's House is his and his parents' (Lisa and Koichi's) house. Later, Ponyo ends up living there, too.

Koichi lives there, but he is more often spending his time out at sea, as he is in the navy. From the house, Sosuke and Lisa can signal to him by using a light that shines out to sea, where Koichi can signal back.

Trivia

 * There is a water tank and propane tank for use in emergencies.