In Tokyo—both in the old days and today—the closer a home is to the emperor’s Imperial Palace, the higher the status of its owner.
Three of the capital’s most exclusive neighborhoods, Azabu, Aoyama and Akasaka, popularly known as the three As, are located just south of the palace. Here, luxury residential towers that cater to the city’s elite now sit where feudal lords once had their lavish villas.
Among...