Midwest Billings Rise as National Index Falls
Architectural firms in the Midwest posted their strongest billings reading since November 2025 in September, while national billings declined.
Updated on Nov. 4, 2026 in Construction
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The AIA/Deltek Architectural Billings Index showed the Midwest region at 50.6 in September, the region's strongest reading since November 2025. The national index fell to 44.7 in September from 47.2 in August.
Why it matters
A score above 50 indicates more firms are seeing billings grow than shrink, so the regional strength contrasts with a broader national slowdown. Tight project financing and cautious clients are slowing decisions across the country.
The national index of new design contracts dropped to 43.7 in September, while average project backlogs fell to 6.2 months at the end of the third quarter from 6.6 months at the end of the first quarter. The source does not explain whether the backlog decline reflects a short-term slowdown or a lasting trend.
The players
AIA Iowa
The Iowa chapter of the American Institute of Architects, whose member firms contributed commentary to the billings survey.
The details
Commercial and industrial firms posted modest billings growth for a second consecutive month, while billings declined again at institutional and multifamily residential firms. National inquiries into new projects rose modestly to 53.2 in September.
Timeline
September 2026: Midwest index reached 50.6 and national index fell to 44.7.
August 2026: National architectural billings index stood at 47.2.
Third quarter 2026: Average project backlog fell to 6.2 months.
November 2025: The Midwest index last reached this strength.
Roadmap
The September readings extend the AIA/Deltek billings series, where the Midwest reached its strongest level since November 2025 even as the national index declined from August. The divergence signals regional uneven recovery within a construction design sector still constrained by cautious clients and tight financing.
Slower national billings and longer project timelines can mean fewer new design contracts and more competition among architecture firms for available work. Regional differences suggest project opportunities may vary depending on where a firm or client is located.
The takeaway
Firms and clients tracking construction demand should watch regional divergence and backlog levels, which signal how quickly the pipeline is refilling. Monitoring monthly billings indexes can help anticipate shifts before they appear in broader construction activity.
Further reading
Explore more construction industry coverage for context on billings and project pipelines.
Source note: This article includes information reported by Business Record.
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