MySims or the inevitable Animal Crossing. We're quite sure that when Majesco announced Our House, they'd be comfortably alone in a genre of their very own.
Home Sweet Home is a WiiWare game from BigBlueBubble based on a casual PC title of the same name (and the same gameplay!) Rather than home-building, Home Sweet Home focuses on interior design and renovation, casting the player as a professional decorator. You'll talk to your clients about their needs, and then direct a team to do the appropriate building and decorating.
In addition to the 'home-design' genre, Home Sweet Home also joins Our House in the category of games whose titles remind us of songs. Enjoy some Mötley Crüe! It's Crüesday.