Changi Airport awarded Nakano Singapore a contract to construct a six-story office development integrated with a revamped coach stand at Terminal 3, according to a company statement on Wednesday.
The building will be the airport's first standalone office block, spanning 9,600 square meters across five levels.
The airport currently occupies around 80,000 square meters of landside office space.
The company expects the office block to be complete during the first half of 2028.