Chapter 24 BIM-based Code Compliance Checking Cornelius Preidel, Andr´ e Borrmann Abstract In the construction industry, a large number of codes and guidelines define technical specifications and standardized requirements to ensure a building’s struc- tural stability, accessibility, and energy efficiency, among others. Today, checking the compliance with the applicable guidelines is an iterative, manual process which is based to a large extent on 2D drawings. In consequence, this process is cum- bersome, time-consuming and error-prone. With the increasing adoption of digital methods in the construction industry, most importantly Building Information Mod- eling (BIM), new technologies are available to improve and partially automate this process. In a BIM-based construction project, digital models that include 3D ge- ometric as well as semantic information comprehensively describe the building to be erected across the different involved disciplines. This rich information provides an excellent basis for automating the code compliance checking process. With Au- tomated Code Compliance Checking, not only a higher degree of compliance with the different regulations can be achieved, but also a significant reduction of effort is possible. The chapter first discusses the major challenges of Automated Code Compliance Checking. Subsequently, representative available software solutions are presented and current research activities are discussed. Finally, an outlook for the development of code compliance checking in the construction industry is given. 24.1 Introduction In the construction industry, a large number of codes and guidelines define technical specifications and standardized requirements to ensure a building’s structural sta- bility, accessibility, and energy efficiency, among others. There is a large variety of Cornelius Preidel · Andr´ e Borrmann Technical University of Munich, Chair of Computational Modeling and Simulation, Arcisstr. 21, 80333 Munich, Germany e-mail: cornelius.preidel@tum.de, andre.borrmann@tum.de 1 In: Borrmann, A.; König, M.; Koch, C.; Beetz, J. (Eds): Building Information Modeling - Technology Foundations and Industry Practice, Springer, 2018, DOI: 10.1007/978-3-319-92862-3