建築中(けんちくちゅう)

Composed of 建築(けんちく) (architecture, construction of buildings) + 中(ちゅう) (in the middle of, during). Specifically refers to the construction of buildings and structures, as opposed to 工事中(こうじちゅう) which covers all types of construction work including road work and repairs.

The suffix 中(ちゅう) attaches to many nouns to indicate an ongoing state: 営業中(えいぎょうちゅう) (open for business), 準備中(じゅんびちゅう) (in preparation), 修理中(しゅうりちゅう) (under repair).

Common collocations

• 建築中(けんちくちゅう)の建物(たてもの): building under construction
• 建築中(けんちくちゅう)のマンション: apartment building under construction
• 現在(げんざい)建築中(けんちくちゅう): currently under construction

Similar words

• 工事中(こうじちゅう): under construction/repair — broader, includes road work, renovations, repairs
• 建設中(けんせつちゅう): under construction — very similar, slightly more formal; used for large-scale projects
• 改装中(かいそうちゅう): under renovation — for remodeling existing structures