But we live in the universe where you can 100% guarantee that all AirBnB's have up to date building codes because they've been renovated? Do you not see the issue with that logic? Can you not imagine a circumstance when a house was renovated right before a major change in building codes and didn't have to be renovated again prior to being a AirBnB? I'm not entirely sure you aren't just trolling at this point.

Of course, this doesn't really matter since as has been stated by myself and others: normal building codes that are sufficient for a homeowner are not necessarily sufficient for other occupants who are paying to stay a night there, but your logic is terribly flawed anyways and it must be pointed out.

Renovations don't automatically involve bringing buildings up to code. Renovations aren't required, either.

> Any house...not renovated..is unmarketable.

Only because there is (i) enough modern housing stock (with safety reg compliance) to provide other options, (ii) knowledge sufficiently available for the public to know the difference, (iii) strict and consistent enforcement to over come the collective action problem.

I would welcome any evidence or analysis showing a free market would create sufficient incentive for home builders and landlords to voluntarily adopt this level/kind of fire or personal safety standards. To me the market would clearly incentive most structures be build at the lowest cost. I would gladly stand correct, I don't have enough knowledge to know what the facts would support.

Read mcguire's post above, the point is that residential fire codes are insufficient and less safe for a property that is being used as a bed and breakfast, and the industry group that represents bed and breakfast operators says it puts them at a cost disadvantage.