- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 10 Apr 2019
In a contract there is reciprocity of undertaking passing between the promisor and the promisee. The rights and obligations of the parties to the contract are created by the acts of agreement between them.
The ‘main contract’ is generally that which is awarded by the client (sometimes referred to as the employer) to the general contractor, or main contractor, whose tender has been accepted. The works required from the main contractor are set out in detail in tender documents, for which they have offered a price that has been accepted by the client.
Main contractors are often appointed under a traditional contract to construct a development for which the design has already been completed by consultants appointed by the client. However, under other forms of main contract, they might also provide part or all of the design, facilities management services, and even financing.
The organisations that the main contractor may appoint to carry out specific aspects of the works for them may be described as ‘subcontractors’, 'subbies', or simply as 'suppliers'. They will be appointed by the main contractor under subcontracts, and subcontractors may themselves appoint subcontractors under sub-subcontracts, and so on. See suppy chain for more information.
 Related articles on Designing Buildings Wiki
Featured articles and news
Insights from New York.
A quick introduction to a very complicated subject.
CIOB suggests the economic reach of construction is double the official figures.
The first US building to achieve BREEAM Outstanding In-Use.
70 buildings from 70 years of Concrete Quarterly. Book review.
Conserving the iron roof at the Albert Dock.
Delivering an infrastructure revolution.
The admissibility of evidence.
How many can you name? 37 anyone?
CIOB respond to the points-based system.
When is the weather considered 'exceptionally adverse'?