Is the lumber mill still in game?

I decided to make a returner account and remember there being a lumber mill building that you can buy for crystals in the shop, however I can’t find it. Must I reach a certain level of point in the game to get it?

I decided to make a returner account and remember there being a lumber mill building that you can buy for crystals in the shop, however I can’t find it. Must I reach a certain level of point in the game to get it?