In the last few years, several cultural and artistic practices observed in Montreal have challenged the usage of the traditional dichotomy of public and private spaces. In response to this conceptual concern we purpose to define in this article the notion of equivocal spaces. By briefly examining five examples in the region of Montreal we will demonstrate a few of the forms these spaces can take. In addition, by a double case study completed between 2009 and 2011, we aim to establish the process by which the equivocal character emerges, is maintained, grows and diminishes. We believe the results of this exploratory research will provide new light in terms of the definition of public and private spaces and provide several lines of inquiry with respect to the relationship that individuals have with the urban environment.