The ACEC Research Institute recently released a report unveiling industry insights on Progressive Design-Build (PDB), a project delivery method gaining traction for its collaborative structure and risk-balanced outcomes.

The Phase 1 report titled “Progressive Design-Build: Practice, Perception, and Potential” is led by Dr. Keith Molenaar, dean of engineering at the University of Colorado-Boulder, and surveyed 581 engineering firm leaders across 439 firms.

According to the study, 76% of respondents have engaged in PDB projects, with 88% reporting increased project volumes and 81% noting rising construction values over the past five years. These trends are fueled by the demand for more integrated and transparent delivery models, especially in sectors such as transportation, water and wastewater, aviation, and public and private buildings. 

Rising Adoption and Industry Satisfaction Signals Confidence

A reported 79% of industry stakeholders say they are satisfied or very satisfied with the PDB approach. Minimal dissatisfaction (only 6%) underscores the growing reputation of PDB as a preferred method in markets that demand accountability, early collaboration, and flexible project evolution.

The report highlights several reasons behind PDB’s success: 

• Early and Iterative Planning: Owners and builders collaborate from the outset to refine scope, cost, and schedule.

• Shared Risk and Transparency: PDB leads all delivery models in effective risk allocation (4.2/5 average rating), reducing conflicts and rework.

• Owner Empowerment: Continuous engagement enables cost-informed decisions and greater control.

• Strong Team Dynamics: Integrated teams foster trust and real-time problem-solving. 

However, despite its momentum, the report also identifies a few challenges:

• Regulatory Constraints: Public sector projects are constrained by FAR (Federal Acquisition Regulations).

• Insurance Hurdles: Smaller firms struggle to meet high policy requirements.

• Knowledge Gaps: Limited owner familiarity and institutional inertia hinder wider adoption. 

“Progressive Design-Build offers a transformative approach to delivering infrastructure and buildings,” said Daphne Bryant, executive director of the ACEC Research Institute. “With the right policy updates and increased awareness, PDB can help the industry build smarter, faster, and with less conflict.” 

The ACEC Research Institute calls on industry stakeholders to participate in the following research phase by contributing case studies of completed PDB projects. These will help refine best practices and inform actionable guidance on equitable risk-sharing, insurance strategies, dispute avoidance, and pricing transparency.