Our session will present a project designed to meet the dual needs of a warming planet and an extra-large generation of older Americans needing to downsize their living situations. We will present our model as an excellent, scalable way to fostering energy efficient solutions to apartment living in walkable downtown settings. The need for new residential buildings is vast. Changing the way we build them, through prefabrication and low embodied carbon, while providing replacement rural jobs and economies in forest communities is a scalable solution to address the urgent need for new homes and the escalating crisis of climate change. We have developed a workable solution for mass timber, Passive House rental apartment buildings in walkable downtown settings, further diminishing the need for automobile use and the associated fossil fuel consumption. We are offering it as model for others to emulate. 79 King Street is the first project by the joint venture team of Live Give Play and Spiritos Properties. We aim to build contextually designed, environmentally responsible, mixed-use buildings in walkable small to mid-sized cities and towns, thus transforming how Baby Boomers live by supporting healthy lifestyles (Live), community service (Give), and cultural engagement (Play). We will present 79 King as a case study and model to be replicated throughout the United States and beyond. We will present the social objectives of the project as well as the data and metrics that establish the business case and sustainability achievements. 79 King has been designed at a time when the cost of construction has been especially volatile and the need for reducing carbon emission and conserving energy is urgent. A highly coordinated effort by the developer, the design team, lead by BKSK Architects, Holmes Engineering and Passive to Positive, along with our pre-construction partner, Western Builders, has positioned us to achieve a best-in-class result. The resultant building will offer residents the opportunity to live in a new, sustainable and healthy building at market rate rental prices, downsizing their needs for space and the use of private automobiles.