Commercial, residential, and industrial buildings are responsible for 47% of global greenhouse gas emissions and 49% of the world?s energy consumption. Much of the energy associated with the power used in operating these buildings is consumed needlessly and can be reduced through cost-effective measures. Knowledge of the size and composition of the global building stock is essential for understanding the built environment and the potential market for new energy efficiency technologies, as well as the impact those technologies can have in helping to achieve significant reductions in energy consumption and carbon emissions on a global scale. This version of Navigant Research?s Global Building Stock Database represents the fourth edition of the report. Given the continued tumult in construction markets and economies worldwide, the model underlying this report has been revised significantly to account for the most recent publicly available data and forecasts. According to Navigant Research, the global building stock is expected to grow from 151.8 billion m2 in 2014 to 171.6 billion m2 in 2024. Most of the new growth is expected to occur in China, where approximately 1 billion m2 of space is forecast to be added to the total commercial and residential building stock every year. North America and Western Europe each represent significant portions of the total building stock, as well. This Navigant Research report provides data on the size and growth of the global building stock from 2014 to 2024, as well as a qualitative description of key growth drivers and trends. The building stock data covers eight commercial building types (office, retail, education, healthcare, hotels and restaurants, institutional/assembly, warehouse, and transport) and two residential building types (single-family detached and multi-unit residential) for seven regions worldwide. This study is intended to provide a comprehensive picture of the total commercial and residential building stock across the world.