DO you know that property taxes are not paid on that house? Good question for the city. I would guess that the house is part of his salary and would be taxed as it is used for personal use. Or at least a part of it.
Then the city is missing out. a private individual is using that house, property taxes as such should be paid. Even cassella pays property taxes to the local school district, in the form of an agreed to payment. Because it is a private company using public property.