That's not the same thing as building/buying a house and renting it out, in my opinion (and is backed by the introductory paragraph on the URL you cited).
If you dig a canal and charge for passage, that is equivalent to renting a house (and is not "rent seeking" either per economics/public policy discussion).
If you dig a canal and charge for passage, that is equivalent to renting a house (and is not "rent seeking" either per economics/public policy discussion).