An illustrative reference mapping the US construction project lifecycle across six industry sectors — from planning and feasibility through commissioning and closeout — with permitting threads, delivery model comparisons, and sector-specific activities. Code adoption, permitting, inspections, procurement, and closeout vary by jurisdiction, funding source, delivery model, and asset class.
Five phases × six sectors — what happens, when, and who owns it
DBB, Design-Build, and CMAR — phase overlap, engagement timing, and key trade-offs
All regulatory terminology uses IBC/federal baseline references (IBC, NEPA, ADA, FHWA). State-specific bodies are acknowledged where they vary significantly.
The matrix assumes a traditional DBB delivery sequence. The Delivery Models companion shows how phases compress under Design-Build and CMAR.
The permitting thread reflects the reality of complex projects — grading, foundation, and shell permits routinely issue ahead of full plan check approval on large commercial, institutional, and infrastructure work.
Content reflects typical industry practice. Specific requirements vary materially by state, jurisdiction, project type, and owner procurement rules. This is a reference, not legal or professional advice.
