What is Design-Bid-Build? A Clear Guide to Project Delivery Methods

The Design-Bid-Build (DBB) process is one of the most commonly used project delivery methods in construction. A structured approach divides a project into three phases: design, bidding, and construction. This linear process ensures clear responsibilities and detailed oversight throughout the project. By understanding how the design bid build method works, you can make informed decisions on whether it’s the right fit for your projects.

Understanding the Design-Bid-Build Process

Each phase in the design-bid-build process plays a unique role in ensuring the project is completed effectively and efficiently. Let’s explore each phase in detail to understand how they work together.

1. Design Phase

The first phase begins with the vision. Architects and engineers collaborate with the owner to translate the ideas into detailed construction plans while ensuring compliance with regulatory requirements.

A comprehensive design package typically includes blueprints, material specifications, and system layouts. Working closely with professionals like structural or mechanical engineers addresses every detail, reducing the risk of miscommunication and costly changes later. Investing time in this phase ensures a smoother transition into the following stages.

2. Bidding Phase

Once the design phase is finalized, the project transitions to bidding, where contractors submit proposals tailored to the completed design specifications.

As the project owner, you and your team will evaluate the submitted bids, considering factors such as experience, reputation, cost, and alignment with the project scope. To simplify comparisons, the bids may undergo a process called bid leveling. This process organizes the construction bids so that they are easy to compare, enabling owners to make a direct assessment of each bid.

3. Construction Phase

The final step in the design-bid-build delivery method is construction, where the project takes shape and building begins. The selected general contractor coordinates subcontractors, procures materials, and manages the construction site.

While the contractor handles day-to-day operations, owners stay informed through regular updates and periodic check-ins. A construction management professional can oversee the project, helping owners avoid delays or missteps and keeping it on track.

Pros and Cons of Design-Bid-Build

The design-bid-build process is highly regarded for its predictability. Its clearly defined, sequential phases minimize ambiguity and provide structure, making it attractive for project managers who prioritize control and a step-by-step approach.

However, the same structured nature can pose challenges, particularly for projects requiring flexibility or expedited timelines. Some of the more common advantages and disadvantages of choosing design-bid-build as a project delivery method are as follows:

Roles of the Stakeholders and Participants

The success of a design-bid-build project relies on the defined roles and collaboration of all participants. Each stakeholder plays a crucial part in ensuring the smooth execution of the design, bidding, and construction phases.

• Project Owners: As the initiator, the project owner defines the vision, hires the design team, oversees bidding, and selects the general contractor. During the design phase, their input ensures alignment with goals, budgets, and timelines. Active involvement keeps the project on track and aligned with expectations.
• Architects and Engineers: Architects and engineers translate the owner’s vision into detailed blueprints and technical specifications. Collaborating with consultants ensures every aspect is meticulously outlined, laying a strong foundation for construction and minimizing errors.
• General Contractors: After selection, the general contractor manages construction by coordinating subcontractors, sourcing materials, and adhering to design, schedules, and budgets. They are the central figure during construction, providing updates and resolving challenges.
• Subcontractors and Vendors: Subcontractors handle specific tasks, such as plumbing or electrical work, while vendors supply materials. The general contractor coordinates their expertise, ensuring the project meets technical requirements and deadlines.
• Stakeholders: Stakeholders, such as local agencies or financial institutions, provide approvals or advisory input. Their collaboration helps align the project with broader objectives.

Best Use Cases for Design-Bid-Build: When to Choose This Approach

The design-bid-build method excels when priorities are structure, clarity, and cost control. Its linear approach—designing first, bidding second, and building last—provides owners with predictable outcomes and well-defined project milestones. Here’s when DBB is the ideal choice:

• Straightforward, Predictable Projects: DBB works best for projects with clear objectives and minimal risk of design changes. Its step-by-step process ensures each phase is completed before the next begins, making it a dependable option for straightforward construction needs.
• Projects Requiring Design Control: DBB offers unmatched control for owners who want complete oversight of the design phase. It’s especially effective for less complex projects where detailed planning and adherence to a specific vision are essential.
• Budget-Sensitive Projects: With the design phase finalized before bidding begins, DBB provides a clear understanding of costs upfront. Competitive bidding helps owners achieve cost-effective solutions, making this method ideal for projects with tight budgets but less stringent time constraints.
• New Commercial Construction: DBB is a strong fit for commercial projects like office spaces, warehouses, and retail buildings. It offers a balanced approach for owners who need professional design and construction services while maintaining close budget oversight.
• Projects with Standardized Requirements: When the project scope is well-documented and unlikely to require significant changes during construction—such as standardized builds or repeatable designs—DBB ensures smooth execution and minimal disruptions.
• Qualification and Competitive Selection: For projects governed by qualifications-based selection (QBS) regulations for design services or competitive bidding requirements for constructors, DBB naturally aligns with these procurement methods.

Quick Tips for Success with Design-Bid-Build

• Ensure that the designs are 100% finalized before bidding to avoid costly changes and delays later.
• Beyond cost, consider a contractor’s experience, reputation, and alignment with project goals and quality standards.
• Regularly communicate with all teams to minimize missteps.
• Consider bringing in a construction management professional to oversee the process, particularly if the project is complex. They can coordinate between teams and maintain accountability.
• Be prepared for the sequential nature of DBB. Build contingencies into the timeline for unexpected delays or construction challenges.

See How Design-Bid-Build Can Work for You

The design-bid-build approach is a proven project delivery method that emphasizes structure, accountability, and transparency. Moltus Building Group supervises the entire process, ensuring each phase transitions smoothly. This supervision fosters clear communication among all parties, reducing the chances of misunderstandings and mistakes.

Our proactive management continues into the bidding phase, where we help clients secure fair and competitive bids, ensuring transparency and optimal value. With a wealth of experience managing complex construction projects, Moltus applies effective strategies to keep the vision consistent from design to completion.

Contact the Moltus Building Group team today with your project details to discover how we can assist you. To learn more about how the Design-Bid-Build approach can lead to success in your upcoming project, please visit our website for more information.