The Coronet Capitol was the building situated in Coronet City, that was home to the Diktat and the Corellia government.
The capitol building was known to be in operation during the time of the Galactic Civil War following the Battle of Yavin in 0 BBY, and served as the governmental building following the destruction of the Coronet Capitol Tower around 6 months ABY.
In 1 ABY, the Ragtags smuggled illegal spice in the Coronet Capitol building. This was part of a plot arranged by the Rogue CorSec to discredit the government and overthrow the Diktat Daclif Gallamby. The plot was foiled after a spacer working for CorSec Lieutenant Mack Jasper discovered the spice and a shipment stolen from the businessman Ral Mundi in the Capitol.
Around the same time, some thieves entered the Capitol and stole a stormtrooper armor that belong to an Imperial officer. Gallura Handerin, a government aide, hired a spacer to recover the armor before the officer could notice the robbery.
The Coronet Capitol was a location in the 2003 massively multiplayer online roleplaying game Star Wars Galaxies, prior to the game's closure on December 15, 2011.