Legal and technical examination of time extensions in construction contracts

In construction contracts, a specific period is prescribed for the contractor to fulfill the undertaken obligation. When this period is exceeded, the risk of non-completion increases, and the contractor may fall into default or the termination of the contract may come into question. In Turkey, it has been observed that a significant number of construction projects are not completed within the stipulated period, which results in contractors facing penalty clauses or the termination of contractual relations. Disputes regarding completion periods are encountered not only in simple maintenance and repair works but also in more complex and specialized projects such as hospitals, schools, and infrastructure works. In this context, the accurate identification of the causes of delay becomes crucial, as such situations may either impose liability on the contractor or, if the conditions are met, entitle the contractor to an extension of time. However, requests for extensions of time often create disputes between the parties, leading to prolonged legal proceedings and project disruptions. This study examines the concept of time extension within the scope of construction contracts executed under the provisions of the Turkish Code of Obligations No. 6098 in the private sector. The relevant legislation was analyzed, and the obligations of the parties, together with the conditions and calculation of time extensions, were addressed through both legal and engineering-based approaches. Furthermore, time schedules and delay analysis methods applied in construction projects were evaluated, and a comprehensive framework was presented in light of the findings, integrating both legal and engineering perspectives.