Buildings are structures in A Total War Saga: Troy that can be built on settlements to - develop the region, allow recruitment, and increase the size of the local garrison.
Overview[]
Each settlement starts with its main building. As the main building is upgraded, the settlement expands to unlock new building slots. Additional buildings can be constructed in these slots from the settlement overview panel. Most buildings are region-specific and can only be constructed in certain types of provinces, with the exception of military buildings - which can be constructed in all settlements.
When accessing the panel, it shows all the available buildings and building chains available for construction. Existing buildings can be demolished to free up space for constructing a different building. They are demolished by selecting the "Demolish" button on the bottom of the building upgrade chain window.