Honolulu Mayor Kirk Caldwell’s State of the City address this week was heavily devoted to the shortage of housing on Oahu, specifically affordable units, and his plans to alleviate the shortage through new incentives, regulations and partnerships with developers. According to Caldwell, more than three quarters of the demand for housing on Oahu is for households earning less than 80 percent of area median income, or $80,450 for a family of four. Caldwell said he plans to utilize city lands as…