The Powers that Be are keen to attract more tourists to this area, but appear to be at a bit of a loss as to how to do it.

Here is a page from a guide I picked up today in Laval, explaining the special features of an English-language guided tour of Laval's architecure through the centuries, that I will leave for you to read.
For my part it's clear to me from this brochure page, that if I went on this tour, I would understand perfectly everything that was told to me about Laval, and would come away with great cultural learnings of France for make benefit glorious nation of Britain.