Well, check the "Games" area of auction and other sites for buildings. FI, on Ebay in these categories you'll find lots of 'thatched' and tudor-style buildings to consider.
However, there is the issue of scale in this arena. "28mm" is a popular gaming scale, but that scales out to about 1:60, rather than 1:48, meaning the buildings will be on the small side....closer to S scale. OTOH, you could place them in a 'forced perspective' manner on a layout to be fairly acceptable.
1:48 is not a gaming products scale. You'll have to compromise. But they have LOTS of buildings of the type you're interested.
FWIW....
KD