I suspect you'll have to go a long way before you come across such a concentration of half timbered houses. I would think that by their very nature they would be far from fire proof and it should not be forgotten that while this may be the grand design of tudor living the Tudor's also brought us smoking in bed (as well as the potato, but that has little relevence to this tale). When you look up in Shrewsbury, and few towns encourage looking up quite so much, you begin to notice that many of the dates on buildings are far from Tudor and indeed many of the half timbered buildings are indeed Elizabethan, the current Elizabeth that is, or Victorian or something inbetween. A bad thing? I think not, when you look at some of the other buildings about the country that town planners have chucked up, then I think a little copying of the past doesn't go amiss and certainly gives this town a bit of character.
That good old multinational Costa Coffee certainly looks ancient, and I suspect that the major part of the house is, but when you look at the carvings round about it, you see that they were done in around 1990, in fact the one below "celebrates" the poll tax with a carving of Mrs Thatcher and Michael Heseltine.
Sorry, hope you're not feeling too ill after that.
Down by the river there is the following interesting structure to celebrate his bicentenary which has been given the snappy title of "The Darwin Memorial Geo-garden Quantum leap"