The level of the Clan is visible on the Clan Badge, while the perks that the Clan has unlocked can be viewed by tapping the 'Clan Perks' button. For example: Giving extra storage to the Treasury.
Participating in Clan Wars will give your clan a certain amount of experience, which you can use to give the people in your clan new perks.Clan XP and Clan Perks were introduced in the February 2015 update.
