The demolition of industrial buildings raises a large number of questions for those involved, the most detailed clarification possible of which minimises the risk, thus permitting a successful outcome technically, economically and with regard to time. The first part of this work is dedicated to putting these questions regarding organisational needs, the legal possibilities and the technical requirements and dealing with them theoretically. This is handled in chapters 2 to 11. This includes a brief summary of the current status of the individual subject areas, starting in chapter 2 with an explanation including an extract from the technical literature available. Chapter 3 describes the limiting conditions in industrial construction, which are a precondition for assessing the demolition procedure and therefore the expenditure for the corresponding measures. The subject areas 4 to 11 are generally valid for all demolition projects. The preconditions for investigating the building project are listed with reference to general requirements such as the preliminary investigations (chapter 4), the technical features of the buildings (chapter 5 Design, chapter 6 Materials) and the requirements of the construction operation (chapter 7 Method, chapter 8 Site Equipment, chapter 9 Transport, chapter 10 Refuse Disposal and chapter 11 Organisation). The core subject of the work is the assessment procedure. Chapter 12 first of all investigates the usual assessment procedures and a method is selected which meets the specific requirements imposed. The new assessment procedure is developed in chapter 13. The theoretical structure is implemented in the form of a software tool for simplified use. The new assessment procedure gives the user the opportunity to assess building projects with reference to the selection of the demolition procedure and to determined the related demolition costs and times in a targeted way. The fact that the results achieved by the assessments can fall within the framework of the actual conditions is demonstrated by examining the method in chapter 13 and appendices 4.1 to 4.4 using 3 industrial buildings which were actually demolished. These results fit the actual circumstances but can only be considered a random sample. In the final analysis, only daily use can demonstrate the strengths and weaknesses. The assessment procedure with its structured cycle permits technically skilled users to reach an estimate of a construction/demolition project at a manageable cost and to obtain indications of possible risks. However, the results from chapter 13 and the theoretical background from chapters 1 to 12 are not sufficient for the compilation of serious calculations from the point of view of either the site owner or the contractors and planners. This is caused both by constant technical further developments and changes in the law, last but not least by the harmonisation of the laws in Europe, but also by the increased inclusion of research in the technical college sector. Therefore, it is necessary to continue writing up the discoveries made, in which this work can serve as a foundation. There is a need to catch up on independent analyses of labour time allowances published to date in order to be able to cover the various activities in demolition more effectively in the many difficult limiting conditions found. The technical colleges have created important basic principles here which, however, require expansion and implementation. This work demonstrates clearly that, for example, insignificant difficulties such as increased insurance costs or transportation, using smaller pieces of equipment, can lead to major cost increases. The sector involved in separating off complexes of buildings from the composite group of production workshops also represents an interesting group of subjects for further research. As a consequence of the increasing degree of cross-linking with an extremely wide range of supply and production systems, it is even difficult for experienced maintenance engineers to retain a precise overview, even on the basis of good documentation. Therefore every preparatory intervention in existing building structures before the actual demolition is difficult to calculate and associated with risks. In the end, in addition to relying on the knowledge of the engineers, constant improvement of the building process and working this up scientifically are needed for further development of the structural science sector “Demolition in Difficult Industrial Conditions”. This work is intended make a contribution to this process.