One of the most important tasks in planning a large construction project is the correct choice of performers who are able to qualify and timely make all the necessary construction work. For investors, an important indicator, in addition to the professionalism of the performers, is to clarify the ability of an invited company to realize a conceived project within the framework of the planned volume of financial resources. In turn, potential performers can be afraid of underestimated rates for building materials and unacceptably low wages laid down in the design estimate. Even at this preliminary stage, the help of professional specialists in the construction audit is extremely necessary, capable of finding out all the disputed provisions to optimize work processes and timely implementation of design work. The work of professional auditors eliminates the possibility of unreasonable excess of the planned estimated cost of work. With a detailed financial analysis, an unplanned seizure of financial resources from circulation becomes impossible, which avoids delays in payments of the earned payment and prevent the supply of building materials. For the customer of work, the construction audit in Moscow provides many advantages in comparison with the independent study of important details of the upcoming construction. For example, when choosing a work executor, the audit company is able to analyze in detail all the existing tender proposals, accompanying an analysis of a written opinion on each sentence received. The text of the conclusion contains a detailed explanation of the real advantages and disadvantages of each paragraph of all sentences. In addition to the analysis of the tender participants, an audit company can provide qualified recommendations on the most profitable and legally verified conclusion of contracts with contracting organizations. Ensuring uniform and purposeful expenditure of invested finance is carried out with the participation of an audit company, whose employees take part in the process of drawing up schedules for each stage of construction work and proper financing of each planned paragraph. In the process of performing the work, the possibility of checking the performance of graphs ensures the conduct of control residents produced with the participation of the customer and contract organizations.