The 4 buildings you have to upgrade for this one are:
- Lumber Yard
- Cement Yard
- Brick Yard
- Steel Yard
I got a prompt when I had started a Designer match with a Lumber Yard and Cement Yard already placed down with a team in each. Immediately it came up saying I had produced enough of the resources to upgrade it. Clicking into the building had an upgrade option in the Upper Left of the Lower Right menu. I paid a little and then put the team outside the building to perform the upgrade. Upgrading doubles the capacity of the the resources.
You just need to repeat the upgrade process for each of these buildings for the trophy.
To unlock each building, you need to produce enough of the houses in the level you have reached and then the game will reward you with the next resource type.