For our Guild Boons Structure in 2016:
1. WIKI information
Stronghold boons work differently than other boons. Stronghold Boons are separated into 4 categories: Offense, Defense, Utility, and PvP, and you may only have one boon from each category active a time.
To be able to activate Stronghold boons, Boon Structures must be built. Higher ranks of the corresponding structures give larger benefits from the boons. Any member of the Stronghold’s guild may activate any boon that has been unlocked.