The Finnish housing fair is an event that promotes the quality of housing and living conditions in Finland by displaying building products and buildings in a different city across the country each year. It attracts more than 110,000 visitors steadily since five decades. This chapter details how this community event is planned, constructed and valued since its inception in 1966. The focus on processes shows that early strategy, flexibility and adaptation are the key elements to ensure long-term sustainability. Overall, this case study provides a greater understanding into the relationships, dynamics and planning processes of festivals and events, and the impact this has the local communities they serve.