In addition to being more affordable, the design build model is also more effective than a traditional construction project structure. When problems arise in the design, bid, build process, project delays and cost overruns can result as owners face disagreements or inequities between architects, engineers, and contractors. Using this model, change orders add nearly 5% to a project’s cost on average. No so with the design build model, where the building owner has a single point of contact when issues arise. The owner, architect, and general contractor usually collaborate on building design and projected costs from the project’s inception. The contractor oversees the entire project, including design. This ensures seamless communication and limited changes, which save significant time and money.