The introduction of building information modeling (BIM) causes different reactions. There are supporters, opponents, and also entrepreneurs who would not like to spend extra money unnecessarily. “All options should be taken into account, because technologies do not work without people,” Mark Pak, the owner of the “Irisoft” group of companies, the co-owner of the “Digital Engineering Center” company, candidate of technical sciences from St. Petersburg, says. In the presented interview for the “Geolnfo” journal, he told about when the use of BIM is justified and when it is possible to do without it at the stages of design, construction and operation of a construction object. BIM are technologies that are advertised and implemented with the help of administrative resources in Russia. You can live without them. But they open a convenient way to pass the state expertise of construction documentation and to participate in complex, expensive and interesting projects. BIM-technologies can pay off in the long term, but in the beginning they will require large investments of money and time that will be needed to adapt personnel. The companies, which have pass this way, no longer want to work without BIM, but there are still few of them in the Russian market.