Under construction; a building is currently being constructed and is not yet completed.
このビルはまだ建築中で、来年春に完成予定だ。
This building is still under construction and is scheduled to be completed next spring.
建築中の現場には保護具を着用して入ってください。
Please wear protective gear when entering the construction site.
隣の家が建築中で、朝から工事の音がうるさい。
The house next door is under construction and the construction noise is loud from the morning.