The operation of a bed-and-breakfast establishment involves commercializing at least some segments of a domestic space for use by “outsiders” or tourists. This challenges dualistic divisions of tourist and everyday spaces and contravenes the conventional notion of the home as an everyday private space for family. In redesigning the home as a bed-and-breakfast, the spatial organization is changed. This article presents a case study using participatory mapping to answer the question: What is the spatial impact on domestic space when parts of it are commercialized?