At the moment the human is trying to make the construction as efficient as possible, accelerate and facilitate the introduction of different types of innovations. Therefore, to the fore a new concept of prefabrication, which we call modern methods of construction MMC is coming. In this article, 3 prefabricated construction systems were chosen for the analysis of the construction of the family house. It is a system of Europanel SIP technology, CLT panels and ceramic panels. These are systems of euro panels' technology SIP, CLT panels and ceramic panels. The choice of construction systems has taken into account that all three systems fall under the MMC philosophy. Subsequently, selected parameters of individual structural systems were analysed, such as wall thickness, ceiling thickness, bulk density, compressive strength of walls, heat transfer coefficient, reaction to fire, fire resistance, usable area and price on a particular family house project.

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The article deals with roof building structures that allow the use of solar energy in the segment of family houses. Modern technologies include photovoltaic roofing, which, in addition to the production of electricity, also fully replaces the roofing itself. It does not disturb the resulting aesthetic and architectural impression of the roof. The article analyzes the cost, return on investment and service life of four solar solutions that are applied to the roof structure of a family house. The use of solar energy is currently small in the segment of family houses in Slovakia despite state subsidies. As this is an ecological way of obtaining energy, there is a need for more discussion on this topic in order to ensure the sustainability of the planet.

By reducing construction times and thereby shortening the times of construction site operation, it is possible to contribute to ensuring the social, economic, and environmental pillars of sustainability, which are necessary to meet the 2030 climate target plan set by the European Commission. This paper deals with an analysis of the time of site operation in construction of residential buildings. The site operation time in construction of fourteen residential buildings in Slovakia was examined. The research offers findings that can help clients make more rational decisions about the duration of construction site operation they request from contractors in construction contracts. Defining the mathematical dependence between the size of building and needed time of construction site operation in the pre-project planning phase was one of the results of this analysis. Based on the relationship expressed in this way, contractors can predict whether it will be possible to obtain a score in an environmental assessment of a building by minimizing undesirable effects of the construction site (such as dust, noise, and vibrations) through reducing the time of construction site operation. The study also produced a methodology in the form of steps or actions for the possible reduction of construction site operation time. The equation of dependence that resulted from the present study may be a good basis for planning a sustainable construction site that only affects its environment during the necessary construction time.