Here is the full list of all 15 Dream Home achievements.
Complete all campaign scenarios.
Gain the Professional Company title in campaign mode
Gain the Foreman title in campaign mode.
Complete any tutorial
Win a 2-player game with AI players.
Win a 2-player online game.
Gain the Amateur title in campaign mode.
Win a 3-player game with AI players.
Win a 4-player game with AI players.
Win a 3-player online game.
Win a 4-player online game.
Gain the Professor title in campaign mode
Gain the Sultan Of Developing title in campaign mode.
Win any campaign scenario with maximal score.
Gain at least 3 buddies in online mode.