Construction Manager as Constructor, commonly shortened to CMc, brings the construction team into a project while design is still developing. The owner keeps a direct contract with the architect and hires the CMc to provide preconstruction services, develop the construction plan, establish pricing, procure trade contractors, and manage the work through closeout.
For Indiana owners, especially schools, municipalities, public agencies, healthcare organizations, and private institutions, CMc can create earlier cost and schedule visibility than a traditional design-bid-build process. Its value comes from collaboration and transparency, not simply from selecting a contractor earlier.
What is Construction Manager as Constructor?
Under the CMc delivery method, the construction manager serves as a professional adviser during design and then takes responsibility for construction. The owner typically holds separate agreements with the architect and the CMc. Those two teams work together, but each remains directly accountable to the owner.
During preconstruction, the CMc reviews the developing design, prepares milestone estimates, evaluates constructability, builds the project schedule, plans logistics and phasing, identifies long-lead materials, and helps the team compare options. When the scope is sufficiently defined, the CMc typically proposes a guaranteed maximum price, often called a GMP, based on the drawings, specifications, allowances, assumptions, and accepted trade-contractor pricing.
How is CMc different from agency construction management?
The terms sound similar, but the contractual responsibility is different. A construction manager as adviser, sometimes called CMA or agency CM, represents the owner but generally does not hold the trade contracts or take responsibility for constructing the project. A CMc provides preconstruction guidance and then becomes the constructor, holding the trade contracts and accepting the construction obligations defined in its agreement.
CMc is also different from traditional general contracting. In design-bid-build, contractors typically price the project after the design is substantially complete. With CMc, the selected construction team participates earlier, so budget, schedule, phasing, procurement, and constructability can influence decisions before the documents are finished. Owners comparing these paths can also review our guide to design-build versus general contracting.
How the CMc process typically works
1. The owner selects the CMc
The owner evaluates the CMc team based on the procurement requirements for the project. Qualifications, relevant experience, personnel, approach, fee structure, and the ability to support the owner during design are important considerations. For public projects, the agency must follow the process required by Indiana law and its legal advisers.
2. Preconstruction begins during design
The CMc works with the owner and architect to connect the design with the available budget, desired schedule, and operational needs. Useful deliverables include milestone estimates, constructability reviews, bid-package planning, site logistics, phasing plans, procurement schedules, value analysis, and risk tracking.
3. Pricing develops with the documents
Early estimates are not fixed promises. They are decision-making tools that should become more detailed as the design advances. A strong CMc explains assumptions, allowances, alternates, exclusions, escalation, contingencies, and unresolved scope so the owner can see what is changing and why.
4. Trade packages are competitively procured
The CMc develops clear bid packages, solicits qualified trade contractors and suppliers, evaluates the bids, and makes award recommendations in accordance with the project requirements. Open scope review is critical. The lowest number is not useful if it omits work, relies on unrealistic assumptions, or creates gaps between trades.
5. The GMP and construction agreement are finalized
Once the design and procurement information support reliable pricing, the CMc presents the GMP or other agreed contract amount. The supporting schedule of values, allowances, contingencies, qualifications, and accepted alternates should be documented clearly. The owner should understand how savings, buyout differences, and contingency use will be reported.
6. The CMc manages construction and closeout
During construction, the CMc manages the trade contractors, schedule, safety, quality, cost reporting, RFIs, submittals, changes, inspections, commissioning, punch-list work, and closeout. The value of the earlier planning should carry into clear field execution and dependable communication.
What Indiana public owners should understand
Indiana Code 5-32 governs the use of CMc for qualifying public works projects. Public agencies should work with their attorney and design team to confirm the current procurement, notice, selection, bidding, bonding, contracting, and reporting requirements for a specific project.
Indiana updated portions of the CMc law effective July 1, 2025. The applicable contract award standard is now “lowest and best.” The law also permits a CMc to perform approved portions of the work totaling no more than 30% of the project value when the CMc is awarded that work under the applicable standard. Those rules matter when the team builds bid packages and considers self-performed work.
This overview is general information and is not legal or procurement advice. The owner’s counsel should interpret the current statute and the requirements that apply to the agency and project.
Where CMc can add the most value
- The project has a firm opening date or a schedule that may require phased design and construction.
- The owner needs reliable budget feedback before the drawings are complete.
- The facility will remain occupied during construction.
- Long-lead equipment, utilities, site work, or early bid packages affect the critical path.
- The project includes renovations, additions, unknown existing conditions, or complicated phasing.
- The owner wants transparent trade bidding and a collaborative relationship with both architect and constructor.
CMc is often well suited to K-12 and education projects, municipal facilities, healthcare environments, and institutional work where operations, public access, safety, and schedule cannot be treated as afterthoughts.
What the owner still needs to manage
CMc does not remove the need for timely owner decisions or complete design coordination. The owner still needs to define the program, maintain alignment among stakeholders, approve design and budget decisions, and establish clear authority for changes. The architect must produce coordinated documents, and the CMc must provide honest estimating, complete scopes, disciplined procurement, and transparent reporting.
A successful process depends on all three parties working from the same priorities. When decisions are delayed or scope changes without corresponding budget and schedule adjustments, the delivery method cannot prevent the consequences.
Questions to ask a potential CMc
- Who will lead preconstruction, project management, and field supervision?
- How will estimates change as the design develops?
- How are trade contractors prequalified and bid coverage developed?
- How will bid results, contingencies, allowances, and savings be reported?
- What experience does the proposed team have with similar facilities and occupied sites?
- How will schedule risks and long-lead items be identified?
- What technology will the team use for estimates, RFIs, submittals, cost reporting, and project documentation?
- How will the CMc coordinate safety, quality, commissioning, and closeout?
Planning a CMc project in Central Indiana
SCS Construction provides construction management, preconstruction, general contracting, and self-perform capabilities for public and private owners. Our Greenwood-based team serves Central Indiana with experience in schools, municipal facilities, healthcare, commercial spaces, athletics, renovations, and occupied environments.
We bring estimating, project management, field leadership, safety, quality control, and construction technology together around the owner’s goals. Review representative work in our project portfolio, or contact SCS Construction to discuss whether CMc fits your project.
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