The overall higher values in some neighborhoods are “going to create a situation in the summer of 2019 when the tax bills come out, where there’s going to be question as to whether or not people can pay for these increases in valuation,” he predicted. “And the common expression that was put forward a number of years ago was that you can be brick rich and cash poor — which is that the value of your home can go up, but that doesn’t necessarily mean that you have the ability to pay those taxes, which then leads to the question of, ‘Does the tax policy make sense?’”