Empire
Imperial Palace : Coruscant - Reduces the price of everything on the Planet by 30% and Generates More Income for the Planet.
Spaarti cloning facility: Wayland, Coruscant and Byss - Makes Clone Stormtrooper Units - Grarrsion : Clone Stormtroopers
Imperial Spec Forces Training Fertility : Coruscant, Carida and Corulag - Trains Nova Troopers,Storm Commandos and Incinerator Troopers - Garrison: Storm Commandos and Incinerators
Sith Acdermy : Coruscant, Byss, Korriban, Yavin 4, Dathomir and Endor Trains Sith - Protected By Sith and Imperial Elite Guards.
Imperial Intelligence Headquarters: Coruscant - Allows the Empire to see all of the enemies feet movements, enemy fleet positions and Enemy land units. Expensive to Build
Imperial Prison: Decreases Production of Land units. When Destroyed produces Stormtrooper guards and Prisoners
New Republic
Imperial Palace : Coruscant - Reduces the price of everything on the Planet by 30% and Generates More Income for the Planet
Jedi Temple : Yavin 4, Coruscant, Corellia, Dantooine, Endor and Ossus - Trains Jedi - Protected By jedi and New Republic Elite Guards.
Republic Cloning Facility: Kamino, Polis Massa and Coruscant - Trains Clone Units - Garrison: Clone Trooper Platoon
New Republic Spec Forces Training Fertility : Yavin 4, Coruscant, Corellia and Endor - Trains Spec Forces - Garrsion : Spec Forces.
Clone Advanced Training Centre : Kamino, Polis Massa and Coruscant - Trains : Rail - Class Arc Troopers and Clone Tactical Officer - Garrison : Arc Troopers.A Republic Cloning Facilty is needed for construction
Rothana Heavy Engineering Factory :Rothana - Allows Production of of products made by Rothana Heavy Engineering - Garrsion : AT-TE
Bothan Spy Network Headquarters: Bothawui - Allows the New Republic to see all of the enemies feet movements, enemy fleet positions and Enemy land units. Expensive to Build
Criminal Confederacy
Lucrehulk-class Core Ship Battle-sphere : Anywhere - Allows the Criminal Confederacy to see all of the enemies feet movements, enemy fleet positions and Enemy land units within a certain range. It is built above a planet.It is Defended by squadron of Vulture Droids and Set of turbo-lasers and Laser Cannons.
NightSister Recruitment Camp: Darthomir and Florrum - Allows Production Of Nightsisters - Garrasion : Night Sisters and Twi'lek Assassins
All
Golan Defence Platforms 1-3 : Defensive Space Platform - Can be built on any planet, certain golan's can only be made on certain planets.
Shipyards: Allows for Faster production of Space Units - Buildable above Planets
Tradeport : Allows for increased income for planet it is Orbiting
Nice list what about special planet features :) like Kuat and stuff.
I have not finished the List yet, but as soon as i get more ideas for unique structures for the CC i will write them down :)