Builder confidence in the 55+ housing market for the fourth quarter of 2013 is up sharply, according to the National Association of Home Builders’ (NAHB) latest 55+ Housing Market Index (HMI) released today. All segments of the market—single-family homes, condominiums and multifamily rental—registered strong increases compared to the same quarter a year ago. The single-family index increased 20 points to a level of 48, which is the highest fourth-quarter reading since the inception of the index in 2008 and the ninth consecutive quarter of year over year improvements.