Design-Build (or design/build, abbreviated D-B or D/B accordingly) is a project resolution system used in the construction industry. It is a method for carrying out a project in which design and construction services are entrusted by a single entity known as a design builder or design construction contractor. It can be divided into architect-guided design construction (ALDB, sometimes also called designer-design-build) and design contractor-build. The rise of the design-build project has threatened the traditional hierarchies and silos of the design and construction industry. As a result, a debate was launched on the value of design construction as a method of project execution.  As part of a design construction contract, designers and project owners work hand in hand to create construction drawings and analyze a logical sequence of construction. This collaboration from a single source makes it possible to complete both design and construction in stages, instead of working from the outset from a complete design. The «design designer» is often a general contractor, but in many cases a project is led by a design professional (architect, engineer, architectural technologist or other professional designers). Some design construction companies employ design and construction professionals. When the planner is a general contractor, the designers are usually directly commissioned by the contractor.
A partnership or joint venture between a design office and a construction company can be created on a long-term basis or for a single project. The design-build team takes sole responsibility and is responsible for costs, schedule and performance, and, under a single contract and with a reduced administrative burden, customers can focus on the project instead of managing different contracts. And by filling warranty gaps, building owners also virtually eliminate litigation. In addition to projects with tight schedules, design-build is often preferred by federal authorities, who must accelerate projects so that the return on investment can be activated earlier. Design-Build is sometimes compared to the «Baumeister» approach, one of the oldest forms of the construction process. Comparing Design-Build to the traditional purchasing method, the authors of the Design-build Contracting Handbook said: «From a historical point of view, the so-called traditional approach is actually a very new concept, which has only been used for about 150 years. In contrast, it is reported that the concept of design construction – also known as «master builder» has been used for more than four millennia. « It was concluded that the Design-Build approach and the mixed-use concept together created the controversy, uncertainty and complexity of the Belmont Project, which contributed to increasing the potential for project failure.
While Belmont`s investigation acquitted the Los Angeles Unified School District of any criminal misconduct, the task force recommends strict oversight, including written protocols, a vigorous inspector general`s office and other recommendations, if it decides to continue using the design construction approach. During the period in question, former LAUSD Superintendent Ramon C. Cortines, who works with the LAUSD Board of Education, of which Monica Garcia is the chair, actively attempted to reduce the Inspector General`s Office by 75 percent (compromised to 25 percent), and then removed Inspector General Jerry Thornton after conducting critical audits showing the misuse of construction funds.  A 2011 study, which analyzed the design method of project construction in the United States, shows that in 2010, design construction was used in about 40 percent of non-residential construction projects, a 10 percent increase since 2005. . . .