This paper is a summry of research conducted in 2011-2012, funded in part by the Fulbright Program and entitled City of Water: Architecture, Urbanism and the Floods of Phnom Penh. This work documents the relationships between water, architecture, and infrastructure in Phnom Penh, Cambodia. The objective of the project is to record the architectural and urban conditions sustained by and subject to the cyclical floods of the city’s rivers and the challenges faced by Phnom Penh as it rapidly urbanizes in a flood plain.