Architects typically put projects to tender on behalf of their clients, advise on the award of the project to a general contractor, and review the progress of the work during construction. They typically review subcontractor shop drawings, prepare and issue site instructions, and provide construction contract administration (see also Design-bid-build). In many jurisdictions, mandatory certification or assurance of the work is required.
Depending on the client's needs and the jurisdiction's requirements, the spectrum of the architect's services may be extensive (detailed document preparation and construction review) or less inclusive (such as allowing a contractor to exercise considerable design-build functions). With very large, complex projects, an independent construction manager is sometimes hired to assist in design and to manage construction. In the United Kingdom and other countries, a quantity surveyor is often part of the team to provide cost consulting.
