Taxes never really go down. That's always the ploy - say the tax is a limited time, or only a specific low rate, then extend it. In this case, the people in power can play with the tax rates, but even more so in the zoning. An added avenue of getting screwed is not very appealing when taxes are already high. Let's not forget rhat if the goal is to utilize more space, that means more infrastructure and services costs. If we actually make a big impact on the space front, those infrastructure costs will go up and require substantially more revenue. I'm skeptical of the claim that most taxes will go down.