if you are doing some seriously intricate research it is a real eye-opener as far as changing demographics ie racial mix, class, professions etc, also street names change old dead-ends are opened up things like that.

now my shift key is gone...

too much christmas sugar ground into keyboard.

Such books are often illustrated with woodcuts of local places of interest (not always amazingly accurate, however, but you get some sense of how things might have been), and many contain useful advertisements for local restaurants, hotels, transport links, entertainments, etc.

There may also be references in literature of the period to what visits to that location were like - think Jane Austen and Bath.

For somewhere like Chatsworth, a house that has been open to the public for hundreds of years, and it is also interesting architecturally (and beautiful) should appear in nineteenth century descriptions of the peak district - it should be technically possible to find a floor plan somewhere.

For roads, again studying older maps are the only way you’re ever sure to get it completely accurate, as roads move around a lot, even in Europe, and what is now a main road might have been a cow track a hundred years ago.

If you desperately want to find out these things, there are always ways and means.

But to be honest, speaking as an historian, I'd probably make most of it up.