Chuo-ku will soon begin investigating the possibility of creating a new subway line to link Tokyo's bayside areas, including Harumi, to the Ginza district.
The manmade islands are currently going through a construction boom with a number of high-rise apartment towers under construction. The Athletes' Village for the 2020 Olympics is expected to boost the population by 12,000 after the Olympics are finished and the apartments are made available to the public.