You cannot edit or recreate your town on The Sims 3 but on the sims 2 you can. you could also go to their website and try
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if you want someone else to live at your sims house in sims 3, go to edit town, and then choose the household and click on the other household you want them to merge with.
Edit town mode is not in any sims 3 xbox games. Its only on computer.
Sims 3 Pets is an expansion pack for the sims 3. You need the sims 3 to play it. The Sims 3 Pets adds pets to the game, as well as a new town called Appaloosa Plains.
As far as I know, there is no edit town mode in any console versions of The Sims 3. This is only in the PC version.
You can edit your town by going into the options menu (where you save your game etc) and clicking Edit Town. There is also software that is available on the Official Sims 3 website which enables you to create a town from scratch.