05/22/2026
Part 2 — Design-Build vs. Design-Bid-Build vs. CM at Risk: Picking the Right Delivery
The delivery method an owner chooses for a commercial project shapes that project's risk, schedule, and cost certainty more than almost any other early decision. Three of the most common methods do very different things, and each is the right answer for a different kind of project.
Design-Bid-Build (DBB)
The traditional method. The owner hires an architect, the design is fully developed, then construction is bid out. Cost transparency is high, bidders are pricing the same documents, but the process is linear, the schedule is longer, and the owner generally carries the risk when design and field reality don't match. If the drawings have a gap, that gap usually surfaces as a change order during construction.
Best fit: Public projects where competitive bidding is required, or projects with predictable scopes and owners who want maximum design control before pricing.
Design-Build (DB)
One contract, one team, design and construction integrated from day one. The owner has a single point of accountability, no finger-pointing between architect and contractor when something goes sideways, and design and construction can overlap, which compresses the schedule. Owners trade some design control for speed, cost certainty, and a cleaner process.
Best fit: Projects where speed matters, scopes that benefit from contractor input during design, and owners who'd rather coordinate one team than three.
Construction Manager at Risk (CMAR)
The construction manager joins the project early as an advisor, pricing, sequencing, and constructability input through the design phase, and then converts to the builder under a Guaranteed Maximum Price (GMP). If the project comes in under the GMP, savings are typically shared. If it comes in over, the CM absorbs the difference. This places real cost risk on the construction manager and gives the owner financial predictability while keeping design control with a separate architect.
Best fit: Larger or more complex projects, evolving scopes, and owners who want professional construction guidance through design without giving up architect selection.
How to choose
None of these methods is universally better. The right choice depends on three things: how much design control the owner wants, how much risk the owner wants to carry, and how fast they need to be in the building.
The wrong choice isn't usually catastrophic, but it does mean the project fights its delivery model the whole way through. The right choice means the structure of the project and the structure of the contract are working in the same direction.
Next week: how Florida's specific conditions reshape every one of these decisions.
