Increasingly, however, public housing developments are being built that consist of other than the traditional multi-family dwellings with all exterior grounds consisting of shared outside area, for example, public housing may consist of single family garden apartments units. Finally, a home that is located in neither an nor of a public housing development is said to be located in (and to be a part of) a . In Puerto Rico, a also has a second and very different meaning official meaning: the geographical area into which a is divided for official administrative purposes. In this sense, as well as public housing developments (as well as one or several in the popular sense) may be located in one of these 901 official geographic areas.