Property tax taxes two things -- the house, and the land. The portion of the tax that taxes the land is capitalized into the selling/renting price of the land, which is to say that causes it to cost less to buy the land and less to rent it. (The portion of property tax that taxes the building can actually be passed on to tenants (unlike the land portion of the tax) and serves to make building things more expensive, and that is bad, but since the majority of the price of houses in most urban areas is just land value, the land portion of the tax makes it a net gain).