I just got access to Honeyside in Riften, but when decorating it, it won't let me build the enchanting room, or the childrens room. When I select the options it takes my gold, but the option just grays out instead of disappearing, and the room isn't furnished when I go to the house. Anyone heard of this bug, or know how to fix it? Or any console commands to manually activate the rooms?

Sounds similar to one that was haunting Breezehome.

If you are on PC, you could look for a fix mod, there's bound to be one.

I just got honeyside myself, and chose the kid's room, and it was where the enchanting room is...but I have kids already, if that makes a difference.

I don't have kids here, and I just want the enchanting room lol. There aren't console commands to get these rooms furnished are there?