Normally, "historical townscape" is used for towns that had their structures formed during the Edo period, and for those that still retain some of the buildings that were constructed during the period between the end of the Edo period to the Meiji and Taisho periods.
通常は江戸時代に町の骨格が形成され、幕末から明治・大正時代に建てられた建築がある程度残っている町並みを「歴史的町並み」という。