Building Types:
Within the walls of your village you can build a variety of things.
Camelot has 14 kinds of buildings you can build - (Building Types)
Of these you can only build multiples of Barracks and Cottages - all the other types are unique but each serves a useful purpose.
There are a total of 31 building squares. 12 of those are needed for the unique other types.
This leaves 19 for cottages and barracks - and it's your choice.
More barracks speed up production of troops, more cottages provide might and gold.
Always keep balanced resources in mind whatever you are building or training.
Requirements
All buildings have requirements in order to be able to complete them.
When you select a building for construction, a window is displayed showing the requirements.
In this example, the requirements are not met - a level 4 cottage requires that the castle in that city be at least level 3.
So in order to build this cottage you must first upgrade your castle.