Risk of Delays in Implementation of Building Investment in Urban Conditions in the Aspect of Historical Background of its Location

The implementation of a construction investment in urban conditions is extremely complex, and at the same time exposed to a high risk of a specific character. In case of construction investment located in the historic part of the city, the possible accumulation of many unfavourable factors, which in course of its implementation, may constitute a serious source of delays and disruptions, should be taken into account at the preparation stage of the project. Therefore, the aim of the article is to present the main factors that have a significant impact on the construction site located in the historic part of the city, i.e. they are the cause of risk in the course of works and, as a consequence, affect the time of investment implementation. On the selected example of the facility located in the historic part of Gdansk Old Town, the authors indicate the reasons for construction investment duration time extension. The authors also analyze the scope of resulting time delays between planned and actual values. The aim of the analysis is to draw investors' attention to the need of taking into account time contingency already at the preparation stage of construction investment, which results from the specific and unique nature of this type of projects. The article is a continuation of the authors' analyzes on the risk of cost overruns in implementation of building investment in urban conditions in the aspect of historical background of its location.