Prefabricated houses are ideal for people who want to live in a family house built according to their own needs, but building them as a process is not interested or knows about it enough. With the emergence of new building materials and new concepts that appear on the market, spaces for incredible creations have opened up. The biggest advantage of prefabricated houses is that the contractor releases the investor questions and time around the project documentation. The construction process of the prefabricated house is done in a dry installation manner, which greatly improves and accelerates the process of assemblying the house and enables the immediate completion of the work, which is by no means possible in classical construction. The same materials used in prefabricated houses have much better insulation and ecological properties than the materials used in classical construction. Unfortunately, Croatia lags far behind with the percentage of construction sites compared to the rest of the world. The biggest problem with this is the lack of information and insecurity in our own decisions and the very thought of new trends and new materials in construction. At present, the world's leading country is Sweden, where over 85% of houses in total construction is the prefabricated type. The greatest cost effectiveness of prefabricated houses, if we look at life for many years, is self-sustainability. Its profitability is reflected in considerably lower cost and maintenance and life costs. In Croatia, mostly in the coastal and coastal areas, and partly in the vicinity of Zagreb, there were wooden prefabricated houses, mostly as investment in tourism and for young families. The most reputable and most cost effective, in terms of price and quality ratio, is the new Croatian brand of modular prefabricated houses that come fully equipped and furnished, ready to begin life in them. The word module itself enables us to fully utilize the living space whose primary goal is to satisfy and meet all your needs and responsibilities. Modular prefabricated houses fully meet all environmental and energy requirements and belong into the energy standard A. The reason for this is the use of recycled materials for insulation of walls, floors and ceiling of houses. The cost of modular prefabricated houses is decreasing with increasing quadrature. This is a great advantage compared to a classical construction, because the cost of construction is most affected when choosing a home construction method. Modular prefabricated houses come with a 30 year warranty on construction elements and a five year warranty on interior home appliances. Prefabricated houses are automated and always under the same controlled conditions which ensures the same high quality in each home.