The real estate includes continuous implementation of the investment and construction project in the form of the object connected with the earth. The project has its term of life. The definitionof its purpose is an important stage in development of its concept. After definition of the purpose start search and an assessment of alternative ways of its achievement. The project has life cycle. On each of stages of life cycle of the project the taskshave their own characteristic. This article is devoted to consideration of components of cost engineering: pricing, business planning, management of projects to their influence and interaction.