The Energy Efficient Housing Retrofit Guide for Yukon covers several possible retrofit programs for typical single-family homes in Whitehorse, YT. Retrofits can involve relatively small amounts of work and cost (e.g., minor air sealing work) or more costly and complex work (e.g., below-grade retrofits). The guide is intended to be used by homeowners and builders as a reference for achieving higher levels of energy efficiency and maximizing utility cost savings and passive survivability through lower energy use. Where permafrost is present, only above-grade retrofits based on this guide are applicable. While this guide is based on a single-family home archetype with a finished basement and floor area of approximately 144 m² (1550 ft²), the general guidance provided within can also be applied to other forms of residential wood-framed construction, including low-rise housing.