Once you have created your own House, you can start a competition by choosing a location in the Control the Keeps Map.
You can explore the locations by dragging the map in the direction you want. Pinch with two fingers to zoom in or out.
The location that you have chosen will display your House name and sigil. It will also show the amount of time the competition will last.
Ask your Housemates to assist you in controlling a location by tapping on the RALLY button.
Your House can earn Daily Bonuses and extra House Points in the challenge.