When large urban agglomerations are located in wildfire prone regions, adapting to the demographic changes while limiting wildfire vulnerability of communities is a challenge for urban planners and policy-makers. The most at-risk communities are found on the urban fringes of the city, a peri-urban crown so-called the wildland-urban interface (WUI). People who live in WUI are therefore directly exposed to consequences of urban planning decisions and its natural risk management, or failure to do so. To keep them safe, they have to prepare their property and themselves to a possible fire by considering the surrounding landscape and its wildfire risk patterns. How do these communities adapt to the local wildfire risk context when they are part of a big city? On what grounds do they build their local wildfire risk knowledge?