"As he climbed slowly up Frodo passed many flets: some on one side, some on another, and some set about the bole of the tree, so that the ladder passed through them. At a great height above the ground he came to a wide talan, like the deck of a great ship. On it was built a house, so large that almost it would have served for a hall of Men upon the earth. "
Worker's Tools: Upgrades the building to rank 2. At rank 2, economy buildings produce 25% more resources and gain 500 additional hit points.
Forged Worker's Tools: Upgrades the building to rank 3. At rank 3, internal economy buildings produce 20% more resources and gain 1000 additional hit points.
The upgrades can be researched from the Forge
Resource Production - This building produces resources. It produces 28 every 12 seconds by default. This number can be modified through upgrades and abilities.
Supply Routes - As you build more economy structures, their individual production becomes less efficient. Once you reach a certain threshold all economy structures will produce less.
5 economy structures or less: 100% production
10 economy structures: 84% production
15 economy structures: 69% production
20 economy structures: 56% production
30 economy structures: 49% production
37 economy structures or more: 44% production
Galadhrim Training - The Galadhrim Quarters provides the reduction to the cost of Galadhrim:
Galadhrim Quarters is the building which is necessary to recruit Galadhrim from the citadel, so if you want to focus your game on Lorien elite and heroic units, it is suggested to build several of these. Do it mid or late game though because of the high cost of those units, or else you won't have a force strong enough to defeat your enemy. First you should focus on weaker units and when you have a decent army then build one or multiple Galadhrim Quarters.