The release of the PHIUS+ 2021 Prescriptive path was partly motivated by wider adoption and lowering the entry point for high performance building -- an attempt at inclusion and "better buildings for all" and reducing overhead/soft costs. The design methodology PHIUS has solely promoted in the past relies on energy modeling, on energy design to aggressive performance targets, and we have been committed to the idea that this is necessary to achieve high performance with enough flexibility for designers to find their most cost-effective solutions. Last fall (2019) the PHIUS Tech Committee considered whether the overhead and the skills needed for such modeling were a barrier to wider use of the standard and whether there was enough data and experience to dispense with it, to put forward a more prescriptive recipe, to get passive building “down to a system,” in the specific context of single-family residential buildings. PHIUS+ 2021 adds a single-family prescriptive path that removes the requirement for an energy model. As a hybrid approach, this path has prescriptions for both the envelope and mechanical aspects of buildings while allowing some performance tradeoffs within those two realms.