Land value tax would be on the land. Property tax includes the buildings, which is naturally the issue. If you want to replace a single family home with a 6-uni

Land value tax would be on the land. Property tax includes the buildings, which is naturally the issue. If you want to replace a single family home with a 6-unit structure that each provide as much housing as the original unit, your property tax is going up, providing a corresponding deterrent to anybody doing that until the rent or market price of the building has gone up by the same amount.