In Oxford, there were many taxes that formed how city looks. Window tax, the more windows, the more tax you have to pay, hence, the words “daylight robbery” as the government taxed the light! So windows were walled to avoid the tax or forced to do so.

Also there was a tax on the space you occupy on the ground as well, so people built houses with second and third stories wider than the ground areas, forming a distinct Tudor house style!