As for the reason, Sukemasa IRIE, who served Emperor Showa as Grand Chamberlain, described in his book that "Okami (Emperor Showa), after the Greater East Asia War, put a stop to reconstruction of Kyuden and so on burned-out in the war with the view of giving top priority to improvement of people's living standards, saying 'A new Kyuden should not be constructed when people have no houses to live in and are in poverty.'"
この理由について、昭和天皇の侍従長を務めた入江相政は、自らの著書で『お上（昭和天皇）は大東亜戦争終了後、「国民が戦災の為に住む家も無く、暮らしもままならぬ時に、新しい宮殿を造ることは出来ぬ」と、国民の生活向上を最優先とすべしという考えから、戦災で消失した宮殿などの再建に待ったをかけていた』旨のことを記している。