Sub-neighborhood

A sub-neighborhood is a a neighborhood that can't exist solely on it's own. The The Sims 2 sub-neighborhoods to date, by expansion pack, are:

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 * Académie Le Tour
 * La Fiesta Tech
 * Sim State University
 * Downtown area
 * Bluewater Village
 * Takemizu Village
 * Three Lakes
 * Twikkii Island

Sub-neighborhoods in The Sims
Sub-neighborhoods in Sims 1 are often referred to as community areas. The Sims 1 community areas, by expansion pack, are:

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 * Downtown
 * Vacation Island
 * Old Town
 * Studio Town
 * Magic Town

Sims 1 community areas exist in a sort of "time warp". No matter how long Sims spend in one, they will return home no more than a few hours after they left. It's not only possible, but common, for them to return when they left.