By Randal O’Toole
Planners rarely say, even among themselves, that one goal of growth-management planning is to drive up housing prices in order to discourage people from living on large lots. One rare exception recently took place in Portland, Oregon, when real estate professionals noted that suburban land values had reached a “tipping point” where it was now worthwhile for developers to buy suburban single-family homes and replace them with high-density housing.
The 1997 regional plan for Portland had directed that two dozen cities and three counties in the region rezone some neighborhoods to higher densities in anticipation of this point being reached. Yet nothing in the plan itself, or any of the supporters of the plan, ever mentioned that…