Data from an annual census of its members allows NAHB to construct detailed profiles of particular types of members—for example, those who specialize in single-family construction. Information from the latest member census shows that, in 2009, NAHB’s typical single-family builder member did about $1.36 million in business activity, employed 7.5 people, and started 19 housing units.
A relatively small percentage of these single-family builders also engage in multifamily construction, and these tend to be somewhat larger operations—whether measured in terms of housing starts, dollar volume of business, or employees. Member census results further show that the number of NAHB single-family builder members declined by 30 percent between 2008 and 2009, reflecting the well-document downturn in the housing industry.
The following sections describe the profile of the typical single-family builder in more detail.
Number of Single-family Builder Members
In 2009, NAHB had an estimated 31,630 builder members whose primary business was single-family building, about 30 percent below the 45,198 number estimated for 2008 (Exhibit 1)  . This decline in membership reflects the dismal conditions of the single-family home building sector in 2009, a year when single-family starts fell by 28 percent—from a 2008 number that had already declined 56 percent from its peak and represented the lowest annual single-family starts number recorded by the Census Bureau since it began tracking the data in the 1950s.
Another 19,194 members reported that single-family building was a secondary operation for their company in 2009, fewer than half the number of members – 39,745 – with such a secondary operation in 2008.
The vast majority of single-family builders – 92 percent – engage in at least one type of secondary activity. Roughly 45 percent were involved with residential remodeling, 15 percent with land development, 10 percent with planning/ designing, and 7 percent with commercial general contracting (Exhibit 2).
Number of Housing Units Started
Most NAHB members whose primary business is single-family construction – over 90 percent – do not build any multifamily units. In 2009, these single-family-only builders started an average of 14 units. Among the relatively small share of single-family builders who do also build multifamily, the average number of units started in 2009 was 72 (48 single-family units and 24 multifamily). Across all NAHB members who are primarily single-family builders, the average number of starts was 17 single-family units and 2 multifamily units in 2009 (Exhibit 3).
Dollar Volume of Business Activity
In general, NAHB’s single-family builder members reported a median $1.36 million in business activity for 2009, but again there was a substantial difference between those who do and do not also build multifamily units. Single-family builders who do not build multifamily units reported median revenue of $1.16 million in 2009. Among single-family builders who also engage in multifamily construction, median revenue was $3.23 million (Exhibit 4).
Number of Employees
In addition to the overall volume of business conducted in a given year, number of employees may vary from builder to builder based on tendencies to use independent contractors rather than payroll employees. In NAHB’s May 2005 Housing Market Index survey, 80 percent of builders reported that they subcontracted out at least three-fourths of their construction work.
Subcontracting is especially common in particular trades such as plumbing and electrical wiring. On the other hand, builders’ payrolls often include non-construction workers—in administrative, bookkeeping, marketing, or executive jobs, for example.
In NAHB’s member census, single-family builder members in general reported that their firms had an average of 7.5 employees on their payroll in 2009, of which 4.2 were construction employees and 3.3 non-construction employees (Exhibit 5).
Once again, the numbers are larger for single-family builders who also build multifamily structures. Single-family builder members who do not build multifamily units reported an average of 6.4 employees on their payroll in 2009, of which 3.7 were construction employees and 2.7 non-construction employees. Single-family builders who also build multifamily units reported an average of 19.8 paid employees in 2009, of which 9.9 were construction employees and 9.8 non-construction employees.
Although they may not have built any in 2009, 16 percent of single-family builder members reported that they build age-restricted housing for people 55 and older (Exhibit 6).
Years as Member, Age, Gender, and Education
In addition to business data, the NAHB member census collects some information on the builders themselves. Single-family builders reported that they have been NAHB members for an average of 15 years, with 63 percent reporting membership of 10 years or more. The median age of NAHB single-family builder members is 53 years (Exhibit 7).
There is a modest but discernable tendency for longer membership periods to be associated with larger single-family builders, especially when measured by dollar volume of business. Single-family builders with business volumes under $1 million had memberships averaging 13 years, compared to 17 years for single-family builders with more than $5 million in business volume.
The median age of single-family builders is 53 years, 95 percent are male, 55 percent have completed college or an advanced degree, and 29 percent have some college education (Exhibit 8).
 The NAHB member census was re-started in 2008 after a hiatus of several years, so numbers are not available for the years immediately prior to 2008.
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