The Life Cycle Assessment (LCA) of the multi-award winning No Footprint House (NFH) by A-01 was developed by the enginnering team of Consost, Construcción Sostenible, with the support of the Embassy of the Kingdom of the Netherlands in Costa Rica. The LCA of the NFH was first presented at the 2019 conferences on climate change by the United Nations, the PreCOP25 in Costa Rica and the COP25 in Spain. The study shows how to balance and finally phase out carbon emissions in residential construction, which is a core target of the prefabricated NFH Toolbox. The NFH Toolbox responds to a modular and system design for a broad variety of configurations that promote a sustainable lifestyle worldwide. More information can be found on https://a-01.net and https://vimeo.com/nfh.