Top 10 States for NGBS Green Certification Activity in 2023
With more than 500,000 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.
Here’s a snapshot at the top NGBS Green certification activity in 2023 for both single-family and multifamily projects:

Four states rank in the top 10 for both single-family and multifamily projects in 2023: Virginia, North Carolina, Maryland and Louisiana. Virginia once again tops single-family certification, and Texas again ranks No. 1 for multifamily certifications.
North Carolina and Louisiana are new additions to the single-family certification top 10, along with Michigan and Mississippi.
The NGBS provides 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.
Builders can learn more about the value of NGBS Green certification at nahb.org.
Latest from NAHBNow
Jun 18, 2025
Podcast: Mid-Year Update on Economic Indicators and Advocacy PrioritiesOn the latest episode of NAHB’s podcast, Housing Developments, COO Paul Lopez welcomes NAHB Chief Economist Dr. Robert Dietz and Chief Advocacy Officer Ken Wingert for a mid-year check in on key economic indicators and NAHB policy priorities driving home building for the rest of 2025.
Jun 18, 2025
Sharp Drop in Multifamily Production Brings Overall Housing Starts DownOverall housing starts decreased 9.8% in May to a seasonally adjusted annual rate of 1.26 million units, according to a report from the U.S. Department of Housing and Urban Development and the U.S. Census Bureau.
Latest Economic News
Jun 18, 2025
Sharp Drop in Multifamily Production Brings Overall Housing Starts DownA sharp decline in multifamily production pushed overall housing starts down in May, while single-family output was essentially flat due to economic and tariff uncertainty along with elevated interest rates.
Jun 17, 2025
Builder Sentiment at Third Lowest Reading Since 2012In a further sign of declining builder sentiment, the use of price incentives increased sharply in June as the housing market continues to soften.
Jun 16, 2025
Permit Activity Weakens in April 2025Housing permits continued a downhill trend for the fourth month in a row, pointing to a broader residential construction slowdown for 2025. Over the first four months of 2025, the total number of single-family permits issued year-to-date (YTD) nationwide reached 320,259.