Lot assignment

Lot assignments control the number and types of Sims that visit a lot in The Sims 3 and its expansion packs. They can also cause moodlets to appear, boosting moods or skill building. Every lot in the game has an assignment. Assignments can be set for a unique world using the Create a World tool, they are preset in premade neighborhoods, but can be changed using Edit Town. Rabbit holes also change lot assignments. Some assignments are locked for use in-game, or can only be used in certain Sub-neighborhoods.

Residential
Residential is one of the two primary lot categories. Sims can live on residential lots.

Assignments in the Residential category:

 * Non-Player Sims Only lot
 * Residential lot

Community
Community is one of the two primary lot categories. Community lots serve a variaties of purposes.

Assignments in the Community category:

 * Academy
 * Art gallery
 * Base camp
 * Beach
 * Big Park
 * Big Shop (most likely for The Sims 3: Ambitions, available in Create a World since patch)
 * Chinese garden
 * Fishing spot
 * Gym
 * Hidden tomb
 * Landmark tomb
 * Library
 * Market
 * Nectary
 * No Visitors Allowed (unassigned, NPCs will not visit unless invited)
 * Pool
 * Small Park
 * Small Shop (most likely for The Sims 3: Ambitions, available in Create a World since patch)
 * Small Market
 * Visitors Allowed (unassigned, NPCs will visit)

Assignments set by rabbit holes
 * Day Spa (set by Spa rabbit hole objects)
 * City Hall (set by City Hall rabbit hole objects)
 * Graveyard (set by Mausoleum rabbit hole objects)
 * Hospital (set by Hospital rabbit hole objects)
 * Restaurant (set by the Diner and Bistro rabbit hole objects)
 * Stadium (set by the Stadium rabbit hole objects)
 * Theatre (set by Theatre rabbit hole objects)