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