Abstract
This report summarizes and documents the pre-project competition and design phase life cycle greenhouse gas (GHG) emissions of Heimdal pilot building project. The report describes the calculation methodologies; including operational energy performance, embodied greenhouse gas emissions (including the emissions from transport of materials), the building design and material choices, measures taken to reduce emissions from operational energy, materials and transport, as well as the ZEB balance. Special focus is given to the lessons learned from pre-project competition and the design phase of the project.