LAUSR

Increasing the ecological performance of construction projects is one of the most actual problems of building production. This article deals with the selection problem of ecological construction projects. The purpose of this article is (1) to indicate the criteria (parameters, features) that create the level of environmental performance of a given building solution by analyzing the functional requirements for building objects; (2) to demonstrate the essential characteristics (specificity) of ecological construction; (3) to propose a method of assessing construction projects including the environmental criterion, supporting decision-making. In addition to the issues mentioned, the article also contains a numerical example of choosing a construction project, where the mathematical tool with elements of fuzzy set theory is used—a fuzzy relation of preferences. Three following evaluation criteria are proposed in the numerical example: time, cost, and environmental performance of the construction project. The article creates the base for a deeper analysis of the ecological performance of construction projects. An important element of the article is also the idea that the environmental problem should be included in the overall assessment of construction projects (including construction solutions). This is a necessity due to the increasingly stringent requirements set for buildings in various areas of their ecological characteristics, features, and properties.