Wooden Base Underground. This base is mostly constructed of wood, creating a natural vibe and somewhat traditional elements. As you can see, the floor, the railing, and most of the decorative parts are made of wood. After all, wood is a resistant material that isn’t only tough but also attractive. Best TH10 Farm Bases for COC Clash of Clans - Town Hall Level 10 Layouts. The Town Hall upgrade till the 10th level costs 4,000,000 gold coins and will take 14 days. From the visual aspect the Town Hall changes its colour to the vinous and dark-grey, the roof tower acquires another little tower on it, underneath the towers there are lava.