"Expands the maximum storage capacity of resources and gold. It also increases the resource production of surrounding buildings."
The Warehouse provides +50 Resource Storage, +2000 Gold Storage, and increases production of all buildings in range by 20%.
The increased production zone is 28x28 tiles wide, with the 4x4 Warehouse building in the center. The increased production applies to all buildings that produce food, wood, stone, iron, oil, and quarries that are producing gold for gold ore veins. It does not increase worker production, energy production, or gold production from housing buildings such as Tents.
Warehouse doesn't need researching to build.
If disconnected from energy network, Warehouse will lose production buff effect, but will keep resource storaging effect.
As of V0.5.0, owing to a bug in the code the actual production increase of the Warehouse is 16.666%.
As of V0.5.0, there is a notable anomaly though with these zones in general: 2x2 Buildings which are only half build inside the zone do get the bonus on the upper part of the warehouse(so top-left and top-right), but don't get it at the bottom.