Independently from these steps, as Tokyo's urban growth again took up pace during the postwar economic miracle and most of the main island part of Tokyo "Metropolis" became increasingly core part of the Tokyo metropolitan area, many of the other municipalities in Tokyo have transferred some of their authority to the Metropolitan government.
Terpisah dari langkah-langkah ini, karena pertumbuhan kota Tokyo kembali meningkat selama keajaiban ekonomi pascaperang dan sebagian besar bagian pulau utama Tokyo "Metropolis" menjadi bagian inti dari wilayah metropolitan Tokyo, banyak kota lain di Tokyo telah mentransfer beberapa dari otoritas mereka kepada pemerintah Metropolitan.