While the economy as a whole has slowed somewhat over the last year the expansion of home building has picked up steam. The home building component of the GDP accounts as measured by the Bureau of Economic Analysis is Residential Fixed Investment (RFI). RFI includes spending on residential structures and some equipment. The category of residential structures includes new construction of single-family and multifamily housing units improvements and remodeling that expand or extend the life of housing units expenditures for manufactured homes brokers' commissions on the sales of residential property and net purchases from government agencies. The bulk of this spending is associated with construction of new single-family and multifamily units plus improvement spending.
It is also worth noting that this measure of home building's contribution to economic growth does not include other housing-related spending such as the average $7400 spent by buyers of newly built homes on furnishings appliances and other items in the two-year period after the purchase.
Since the last quarter of 2011 RFI has averaged a 14 percent growth rate. And as seen in the green line above this growth has added between 0.19 and 0.43 total percentage points to the headline GDP growth rate in the last six quarters. For example GDP growth in the first quarter of 2012 totaled 2 percent. Of that total 0.43 points (or 21.5 percent) was due to advances in home building . Absent the expansion in residential construction GDP growth in that quarter would have been only 1.6 percent.
As a result of this growth in home building and remodeling housing's overall share of the economy is climbing - slowly - back to historic norms. Housing's share of the economy determined by the contribution of the sum of housing services (the flow of economic benefits from the housing stock) and RFI (the contribution of home building and remodeling to the capital stock) has typically totaled 17 to 18 percent.
As of the first quarter of 2013 the total share of GDP due to housing stood at 15.18 percent with 2.89 percentage points of that total due to home building. This is up from the cycle low share for RFI of 2.44 percent for the first quarter of 2011 at the end of the federal home buyer tax credit program.