According to Tokyo Kantei, the average monthly rent of a condominium in Tokyo’s 23 wards was 3,474 Yen/sqm in December 2017, up 4.2% from the previous month and up 3.6% from 2016. The increase was caused by a larger share of relatively new buildings which typically command higher rents, along with the release of a large number of brand new high-rise apartment towers in Shinjuku and Shinagawa.