Nationally Appropriate Mitigation Actions (NAMAs) offer developing countries an important means to work toward their sustainable development and emissions reduction goals through the structure of an international climate change mechanism. The implementation of NAMAs in the housing sector opens the door to support a wide variety of national - scale sectorial mitigation activities which includes policy, capacity building, technology transfer, and research and development. Countries looking to establish a housing NAMA are required to go through an extensive and thus far unguided planning phase to identify, evaluate and prioritize mitigation actions that will support sustained market transformation of the housing sector. This paper looks at the experiences of three countries, Cos ta Rica, Mexico and Peru, through the creation of a low – carbon housing roadmap – a guiding document for the establishment of a housing NAMA. By examining their process, a common pattern of questions and processes was identified and systematized into a framework that is useable for other countries to develop these roadmaps in a more structured and comprehensive fashion.