Lot

A lot is a part of a neighborhood where Sims and objects can exist.

In The Sims and The Sims 2, Sims could not go outside lots. The Sims 3 allows Sims to explore lands between lots.

Lots are mainly divided into residential lots where Sims live, and community lots where they can interact with other Sims.

The Sims 2 expansion packs added new lot types - such as dorms and secret societies (University), hotels and beaches (Bon Voyage) and apartments (Apartment Life).

The Sims 3 has the lot type rabbit hole. Sims can enter these buildings but the player cannot see the inside or interact with their Sim while they are inside.