From Starfleet Commander
Buildings are the structures you create on your planet to help you develop your empire. Each building must first be built and then can be leveled up to increase its effectiveness. Each building level takes up one field. To free up fields for other buildings, use the Teardown function, or use Terraform to create more fields.
For the amount of time it takes to build a building, see Capitol.
Mines are the primary method of resource production in Starfleet Commander.
This is where you discover new technologies and upgrade your empire.
These buildings shorten the time it takes for other things to be built.
This building stores defenses.
These buildings store resources.
This building protects resources.
These are buildings that can specifically only be built on a moon.