When a Hatchimal is assigned to a home the house will start generating coins for you, and you'll see your Hatchimal roaming around Hatchtopia. You also need to assign a Hatchimal to a home so you can dress it up!

Assigning a Hatchimal to a house:
  • Place a house in your world and wait for it to complete construction.
  • Tap on the house.
  • Tap on the pink 'Assign' button.
  • The Collection panel will appear at the bottom of the screen.
  • Drag the chosen Hatchimal to the chosen house.
If you want to change the assigned Hatchimal, drag a new Hatchimal in its place.