March brought continued challenges for architecture firms, as the AIA/Deltek Architecture Billings Index (ABI) recorded a score of 44.1, indicating that many firms are still experiencing declining billings.
WASHINGTON – April 23, 2025 – March brought continued challenges for architecture firms, as the AIA/Deltek Architecture Billings Index (ABI) recorded a score of 44.1, indicating that many firms are still experiencing declining billings.
September 2022 marked the end of the post-pandemic billings surge for architects. Since then, billings have declined 27 of the last 30 months. For two consecutive months, inquiries into new projects have dropped, and newly signed design contracts have seen a decline for an unprecedented 13 months straight.
“Clients are increasingly cautious about starting projects due to uncertainty over future trends in interest rates and building materials costs, as well as the potential for an economic slowdown,” said Kermit Baker, PhD, Hon. AIA, AIA Chief Economist. “Unfortunately, this softness in firm billings is likely to continue as indicators of future work remain weak, however, the average project backlog at firms stands at a reasonably healthy 6.5 months, offering a bit of a buffer if future project work continues to remain soft.”
Key ABI highlights for March include:
- Regional averages: South (48.3); Midwest (45.5); West (43.0); Northeast (40.5)
- Sector index breakdown: institutional (46.2); mixed practice (firms that do not have at least half of their billings in any one other category) (46.1) commercial/industrial (45.1); multifamily residential (40.3)
- Project inquiries index: 47.7
- Design contracts index: 42.4
The regional and sector categories are calculated as three-month moving averages and may not always average out to the national score.
Visit AIA’s website for detailed information about this, and past billing index reports.
About AIA
Founded in 1857, AIA consistently works to create more valuable, healthy, secure, and sustainable buildings, neighborhoods, and communities. Through more than 200 international, state, and local chapters, AIA advocates for public policies that promote economic vitality and public well-being.
AIA provides members with tools and resources to assist them in their careers and business as well as engaging civic and government leaders and the public to find solutions to pressing issues facing our communities, institutions, nation, and world. Members adhere to a code of ethics and conduct to ensure the highest professional standards.
About Deltek
Better software means better projects. Deltek is the leading global provider of enterprise software and information solutions for project-based businesses and the home of AIA MasterSpec®. More than 30,000 organizations, including 12,000 Architecture & Engineering firms, rely on Deltek for superior levels of project intelligence, management, and collaboration. Our industry-focused expertise powers project success for A&E firms of all sizes by helping them achieve performance that maximizes productivity and revenue. Learn more at Deltek.