Here is the full list of all 12 Home Improvisation achievements.
Unlock all rooms in the house.
Build all furniture pieces.
Unlock all tools.
Complete all challenge levels.
Shatter the vase.
Build all furniture in a room.
Play every note on the piano.
Turn the lights all the way down.
Use the mallet to break something.
Complete the Speed challenge level.
Complete the Height challenge level.
Complete the Shatter challenge level.