Top 10 States for NGBS Green Certification Activity in 2024
With more than 600,000 homes certified to the National Green Building Standard (NGBS) since its launch in 2009, builders across the United States are continually adding to the pipeline of NGBS projects.
The NGBS provides home builders with a national standard to define and measure sustainable multifamily and single-family homes, developments and remodeling projects. Third-party green certification also offers consumers a level of confidence that they are purchasing an independently verified green property.
Here’s a snapshot of the top NGBS Green certification activity by state in 2024 for both single-family and multifamily projects:

Four states rank in the top 10 for both single-family and multifamily projects in 2024: Virginia, North Carolina, Maryland and Florida. Texas once again tops multifamily certification, and Florida took the top spot for most single-family certification.
NGBS certification activity generally aligns with areas that are seeing the most new home building. Arizona is a new addition to the multifamily certification Top 10 last year, and Alabama is a new addition to the single-family list.
The NGBS program is administered through Home Innovation Research Labs™. Builders can learn more about the value of NGBS Green certification at nahb.org.
Latest from NAHBNow
Oct 17, 2025
How Diverse Is the Construction Workforce?Diversifying the construction labor force remains a key priority amid persistent skilled labor shortages. The most notable trend has been the steady rise of Hispanic participation, according to the American Community Survey.
Oct 16, 2025
Are Today’s Building Codes Enough to Improve Home Resilience?In the face of rapidly increasing losses from natural disasters, many housing advocates are pushing for more stringent building codes to make homes more resilient to disaster. But is that the best path forward?
Latest Economic News
Oct 17, 2025
Better Growth, Larger Deficits: CBO Fiscal OutlookThe Congressional Budget Office (CBO) is a key nonpartisan score keeper that measures the effects of policy changes by the Federal Government. With several policy changes since January of this year, including the One Big Beautiful Bill Act (OBBBA), stricter immigration, and higher tariffs, the CBO updated its economic projections through 2028.
Oct 16, 2025
Amid Market Challenges, Builder Expectations Rise in OctoberEven as builders continue to grapple with market and macroeconomic uncertainty, sentiment levels posted a solid gain in October as future sales expectations surpassed the 50-point breakeven mark for the first time since last January.
Oct 15, 2025
Builders Stay Cautious as Single-Family Permits WeakenIn August, single-family permit activity softened, reflecting caution among developers amid persistent economic headwinds. This trend has been consistent for eight continuous months.