The use of building information modeling (BIM) in the Czech Republic is currently at the stage of being slowly established in the Czech building environment. From the viewpoint of applicability in the building industry, the issues of BIM in the Czech Republic are very desirable, mainly because of ever-increasing pressure on the sustainability of construction. This approach is gradually used by some, often multinational, construction companies. The article focuses on finding the possible optimization of approach to the planning and operation of buildings in terms of the energy sustainability of buildings.

The period of the crisis characterized by the stagnation of economy sectors has an impact especially on building activities where a large part of them is housing construction. In the field of housing, this situation has an adverse effect not only on the level of further quantitative development, but especially in the form of the suspension of the basic reproduction of housing resources that is necessary for maintaining the state of housing. The housing property management and maintenance process currently undergo greater pressure caused by budgets of the portfolio owners. The challenge of this time is to turn partially away from looking for ways of advancing and financing new housing construction and to focus primarily on optimizing the management and maintenance of the existing house and flat resources in order to maximize capacity utilization, on looking for saving, new possibilities, technologies, and tools with emphasis on the flexibility and complexity of services, and on finding ways how to set about these services as efficiently as possible for the benefit of the owners and tenants under the condition of substantial cost reductions. One of these possible tools, which is not too much known yet and is still underused in the Czech environment but which has the great potential for benefits to optimizing and improving the effectiveness of management and maintenance in the future, is BIM (Building Information Modeling).

The paper is focused on questions of building life cycle costing determination (LCC). Current situation concerning the LCC determination in the world is analysed and it is stated here what documents deal with these questions and at the same time also the ISO 15 686 standpoint is stated here. To point out to the importance of the cost determination in this field which is born already with investment project preparation is the aim of this paper.

The subject matter of the paper is the benchmarking process, representing a strong tool in the Facility Management aimed at making the performance of a certain process more efficient and thereby providing for reduction of costs in the operating phase of life cycle of buildings. The paper indicates the fundamental character in link to the latest part of the Facility Management standard, representing this process as one of the potential Facility Management tools.