Construction Manager vs. General Contractor – Part I – Overview

The question isn’t simply which one is better. It’s which project-delivery structure fits the owner, the project and the decisions that need to be made.

Originally published February 2023. Updated September 2026 to reflect current owner-side project delivery practices.

When an owner is deciding between a General Contractor (GC) and a Construction Manager (CM), the conversation can quickly become oversimplified.

A GC costs less.

A CM provides more services.

A GC takes the risk.

A CM gives the owner more control.

Sometimes elements of those statements may be true.

But I wouldn’t make the decision based on any of them.

I would start with:

“What does this project need from the construction team—and when do we need it?”

The Labels Don’t Tell the Whole Story

Construction Manager and General Contractor describe different roles, but the title alone doesn’t define the commercial arrangement.

The project-delivery method and contract determine much more.

Depending on the structure, compensation might be lump sum, cost-plus, guaranteed maximum price or another arrangement. Preconstruction services may begin while design is underway, or the contractor may enter after the construction documents are substantially complete.

That’s why comparing a CM and GC requires more than comparing fees.

When Do You Need Construction Input?

One of the most important differences can be when construction expertise enters the project.

Some projects benefit from contractor involvement during design for estimating, scheduling, constructability, logistics and procurement planning.

Other projects may be well suited to completing the design and then competitively bidding the construction work.

Neither approach is automatically better.

The question is what the project requires.

What Does the Owner Need?

The decision can also depend on the owner’s organization.

Consider:

• project complexity and phasing;
• schedule requirements;
• design status;
• procurement and long-lead risks;
• need for early cost information;
• internal project-management capability;
• desired visibility into construction costs; and
• the allocation of contractual risk.

An owner with an experienced internal project team may approach those issues differently from an organization with limited construction resources.

Don’t Assume One Structure Transfers All the Risk

A GC does not automatically assume every project risk.

A CM does not automatically leave every risk with the owner.

Cost, schedule, changes, contingencies, allowances and other risks are allocated through the actual contract.

The owner needs to understand those provisions rather than relying on the title attached to the contractor.

There Isn’t a Universal Winner

Both CM and GC structures can deliver successful projects.

The better choice depends on the project, the contract and the owner’s needs.

That’s why this series looks beyond the labels.

The remaining five parts examine preconstruction services, qualifications, contract/design/cost, construction/schedule/payments, and the final comparison considerations in greater detail.

Leadership takeaway: Choose the delivery structure based on what the project requires from the construction team, when that expertise is needed and how the owner wants responsibility, cost and risk managed.