A building attached to or above a train station that houses shops, restaurants, or offices; a station building/complex.
仕事帰りに駅ビルのデパートで買い物をした。
I did some shopping at the department store in the station building after work.
この駅ビルにはカフェがたくさん入っているので、待ち合わせに便利だ。
There are many cafés in this station building, so it's convenient for meeting someone.
駅ビルの再開発で周辺の商店街も活気づいた。
The redevelopment of the station building revitalized the nearby shopping street.
雨の日は駅ビルからそのまま地下街へ行けるので便利だ。
On rainy days it's convenient because you can go from the station building straight into the underground shopping area.