In order to meaningfully speculate on what a city could become, we need to first understand what a city currently is. Designing for a City of Lies is a project that sets out to answer this question, not through mapping what the city is, but what it is not. This is done by asking local citizens to tell lies about their city, and then feed these lies back to the city as designed urban interventions, prototyping new urban futures. Importantly, the project seeks to engage local citizens in new, more inclusive and playful ways throughout this process.