最さい上じょう階かい

noun

top floor; uppermost floor

Refers to the highest floor of a building, often used in contexts like hotels, department stores, or office buildings.

• このホテルの最さい上じょう階かいにはレストランがあります。

  There is a restaurant on the top floor of this hotel.

• 最さい上じょう階かいからの眺ながめは最さい高こうだ。

  The view from the top floor is fantastic.