番ばん小ご屋や

noun

guard house; watchman's hut

A small structure where a guard or watchman stays, often at a construction site, parking lot, or similar location.

• 工こう事じ現げん場ばの入いり口ぐちに番ばん小ご屋やが立たっていた。

  A guard house stood at the entrance of the construction site.