Hi Jude,
Something else worth trying is: Click on the lot where Doo Peas Towers is suppose to be. Select the Build/Buy button. Go to Community Objects, which is in the upper right of the main build tab. Just above terrain tools. The building should be in there. Riverview has it's own Doo Peas Tower. You may need to use moveObjects to place the tower.
I think you may have said you tried this, but it's something I noted when we were doing our build test.
Then use a family to test it out to make sure you see the building and that it can be used.
Just a quicky thought
MrsFlynn