[kdmccormick]

It's a good concern to bring up.

The market will help to a certain extent, because land in the countryside is not going to be assessed (and therefore taxed) nearly as highly as land in the city center. "Vacant lots" out in the countryside are great, but in the city they are a scourge.

That said, the government will need to step in to protect urban and semiurban greenspaces/greenways, because LVT would indeed encourage development of those. (Extreme example, Central Park would be assessed as worth billions of dollars and taxed many millions a year).

I think, ideally, local and state gov'ts would either buy or grant tax easements on urban green areas. If done right, LVT could then incentivize developers to either use the land for buildings, or turn it into a greenspace, avoiding the gross middle-ground of parking lots and other low-value and use.