A new Sold sign Dada for CAW found under Metadata / Game Objects / Environment in CAW. You need to place the packages in both the mods/packages (Sims3 ) directory and in the "The Sims 3 Create a World Tool/ Packages" directory for the for sale sign to show in your game. The reason I made it for CAW, is that you can place it on open land, over non existing lots, pretending that they have been sold, also giving your landscape a bit of character.
There is an earlier post explaining how to install items in CAW.
Importing packages into CAW
Sold sign Dada
For sale sign Dada for CAW