A superinsulated home has many attractive attributes including reducing CO2, saving energy and smaller energy bills. The Passive House certification—which originated in Europe—proves that superinsulating is an effective way to reduce energy consumption. As the popularity of superinsulation grows in North America, the need to assess the buildability of these structures increases. This MRP identifies six metrics of buildability for wood framed, superinsulated walls and creates a tool which can be used to assess the buildability of these assemblies. The tool will assess a specific set of working drawings in their local context. The tool is simple to use, assuming that the user has an understanding of the basics of building science and an understanding of the capabilities of the local trades and the local availability of materials. The initial tool was tested by identifying the strengths and weaknesses of a series of case studies for most of the metrics. A revised tool is proposed which has been refined to address the shortcomings of the initial tool.