A penthouse in Toranomon is rumored to have sold off-the-plan for 5 billion Yen (approximately 45 million USD), making it potentially one of the most expensive apartments to have sold in Japan. Naturally, details are sparse and unconfirmed. 

The majority of high-end residential sales of this nature in Japan are conducted entirely off-market with no public advertising or public reporting of transactions. Listings are only provided direct to potential buyers through their agents. Having a good relationship with a local agent ensures you access to this segment of the market.

The penthouse is located atop a 65-storey, 330 meter tall skyscraper that is part of the Toranomon-Azabudai District redevelopment. The sale was said to have been reported in an unnamed trade journal. The skyscraper will be Japan’s tallest building when it is completed in 2022, and just 2 meters short of the nearby Tokyo Tower. It will be eclipsed by a 390 meter tall office tower due for completion near Tokyo Station in 2027.

The as-yet unnamed tower will have 80 apartments on floors 56 ~ 65, with the smallest apartment sized at a generous 125 sqm (1,345 sq.ft). The penthouse apartment is said to be over 1,000 sqm (10,760 sq.ft), which is possibly the largest single apartment to have been built in the country. 

The Toranomon-Azabudai District redevelopment also includes several other buildings including two 270m and 240m tall towers. In total, 1300 apartments are planned for the 8.3 hectare site. 

Source: Business Journal, February 5, 2019.