The paper discusses the development of gated and guarded housing estates in Poland`s capital, Warsaw. It contains a presentation of recent empirical findings based on a series of field research carried out since the 1990s in Warsaw, with a special focus on its largest residential district of Ursynow. Detailed mappings of the researched housing estates are included, which evidence their rapid spread in the district. An attempt at classifying the housing estates according to different clusters of their physical design is made. A functional analysis of their physical features is carried out against the background of a global discourse of in/security which is presumed to play a major role in the development of contemporary cities. However, several local factors, which have a bearing on gating the city of Warsaw, are also reflected upon.