Design & Build is a construction project delivery method where a single contractor assumes responsibility for the entire process – ranging from design (preparation of project documentation) to actual construction and project completion. Unlike the traditional public procurement model, where the investor separately tenders the design phase and subsequently the construction contractor, this approach combines both stages into a single contractual relationship. This establishes unified accountability for design quality and execution, while fostering closer integration between the design and build phases of a project.

Key Benefits and Purpose:

The primary purpose of the Design & Build model is to streamline both project preparation and execution while minimizing risks associated with separate procurement phases. In practice, it offers several key advantages:

• Reduced execution time – design and construction can partially overlap, accelerating the entire process.
• Simplified communication – the investor communicates with a single partner, reducing the risk of misunderstandings.
• Lower administrative burden – there is no need to run multiple tender procedures or coordinate multiple contracts.
• Better cost control – one contractor is responsible for both the budget and the schedule, limiting extra costs.
• Flexibility with changes – project adjustments can be handled operationally without complex negotiations among multiple entities.
• Consequently, this method is especially suitable for projects where speed of completion, efficiency, and clearly defined responsibility for the final result are essential.

Who Uses It:

Design & Build is applied across both the public and private sectors:

• Public authorities (state bodies, ministries, regions, municipalities) use it mainly for infrastructure projects, public buildings, or environmental construction to simplify procurement procedures and accelerate delivery.
• Private investors and developers choose it primarily for commercial projects (office buildings, logistics centers, manufacturing facilities), where fast commissioning is critical.
• Major construction and development firms act as general contractors providing both design work and physical construction.

However, successful application of this method requires thorough project preparation by the investor, particularly a clearly defined brief (for instance, in the form of a feasibility study), along with a careful selection of an experienced contractor. The contractor must possess technical expertise as well as the ability to coordinate the whole process so that the finished build meets all required parameters, budget, and timeline.

Overall, the Design & Build method represents an efficient and modern approach to executing public construction tenders that saves time and costs while simplifying the process for all parties involved. At the same time, careful preparation and precise definition of the specification, usually via a feasibility study, are necessary.