Going from a top down model like that is going to produce terribly inaccurate results. Property tax systems that use methodologies like that are exactly the one

Going from a top down model like that is going to produce terribly inaccurate results. Property tax systems that use methodologies like that are exactly the ones that end up with the pathologies discussed in the article. Comps is the only decent—-note decent, not great—-way to do property tax assessments. (You can check model quality by looking at predicted value vs actual sales.) With land taxes there frequently are no comps and so there’s no way to get to even the decent level.