However, castles and castle towers were often burnt out, but they were rarely reconstructed because most domains ran into fiscal difficulties or were restricted by the bakufu according to Buke Shohatto (code for the warrior households).
しかし、城や天守などが火災などで焼失することが多かったが、多くの藩は次第に財政難に陥ったり、武家諸法度などの幕府による締め付けもあって再建が許された例は数少ない。