Somehow, I don't like the idea of the government telling me how I may use a property I pay good money for, especially if there are no changes and it's just me with a laptop.
Too many laws in too many places. [I know I won't consider the UK now :->]
EDIT: I have heard about this zoning concept, it's just a bad idea IMHO, especially when applied to the modern tech workers. In France, unless you run specific equipment (say heavy machinery) which can create nuisance or risk for the neighbours, or if receive the public (wear and tear being a nuisance in itself), you're quite free. Zoning as in simcity (residential/industry/commercial) is a dated concept. I want to leave near the place I work and where I can find commerces.
In France, there are even special corporate statuses for single entrepreneurs, which especially allow you to do that in case your landlord may tick, and even deduct part of your home expanses as business expanses (say if you are using a room of your 4 bedroom flat, 15% would be reasonable because you'll still use the bathroom and the kitchen more for yourself that for your company, the % amount is left to the appreciation of the tax agents)
That's one of the rare business friendly laws, even if I must say I've been quite surprised by the recent Hollande plan, which for the first time seems to talk sense about business and employment.