Early Contractor Involvement (ECI)
Construct Only (Lump Sum)
Design and Construct
Engages building contractor early in project.
Traditional fixed price, lump-sum contract.
Contractor responsible for design and construction.
Manages project and subcontractors.
Collaborative alliance contract.
Benefits to Client
Early expertise, risk mitigation.
Enables project to work at speed
Fixed price, defined scope.
Streamlined process, cost certainty.
Flexibility without the cost impact
Harness the experience and wealth of knowledge of design and building professionals from start to finish.
Single point of contact, cost efficiency.
Shared goals, innovation.
Benefit to Head Contractor
Involvement in early stages ensures buildability
Works can be scheduled in to ensure project deadlines are met
Single point of contact, potential cost savings through competitive subcontractor bids.
Clear budget with minimal variations.
Early cost commitment, potential profit from design and construction.
Shared risks and rewards, potential for innovation.
Risks to Client
Potential design changes and uncertainties.
Dependency on managing subcontractors, potential delays.
Limited flexibility for design changes during construction.
Design errors and changes during construction.
Reliance on effective communication and collaboration.
Risk to Head Contractor
Design uncertainty, resource allocation.
Design changes, cost overruns.
Design accountability, scope changes.
Subcontractor risks, time constraints.
Profit sharing, complex collaboration.
Level of Design Input Required
High collaboration and design input.
Complete design provided before construction.
High involvement in the design process.
Collaborative approach in design and construction.
Continuous collaboration throughout the project.