Construction of single-family housing is expected to post a 14 percent increase this year to a total of 812,000 units and advance another 19 percent to 964,000 units in 2017, the National Association of Home Builders said today. Using the 2000 to 2003 period as a healthy benchmark when single-family starts averaged 1.3 million units a year, the NAHB is projecting that home building, which bottomed out in 2009 at an average of 27 percent below normal, will rise to 64 percent of normal by the fourth quarter of this year and climb to 77 percent of normal by the end of 2017. Single-family production currently stands at 58 percent of normal activity, according to a release from the national association. Multifamily construction was 395,000 units last year, above the 331,000 rate that is considered a normal level of production. Multifamily starts are expected to decline 4 percent to 379,000 units this year and rise 6 percent to 402,000 units in 2017. Residential remodeling activity is expected to increase 3.3 percent this year over last year and rise an additional 1.3 percent in 2017.