Boulder's zoning is terrible. They have inflated their home values by limiting the number of homes and limiting density. It's a bad policy. 

Caldera is a joke though. He uses this as an opportunity to bash "liberals" when it's not a partisan issue at all. He'll be the first one to complain about denser housing in his own neighborhood. 

It's clear all he cares about is scoring some partisan points, hence the lack of any solutions.