In Boom Beach the buildings are split into three categories:- Economy, Defense and Support. Buildings in the Economy section allow you to gather and store resources. Defense buildings let you defend your base from enemy attacks. Support buildings include everything else such as your Armory and Radar.
Here you will find details of the time take to upgrade each building and resources required. Defending you base is a key part of Boom Beach and balancing your upgrades across each section is important to succeeding.