Faction Special Building (ex. Murus Romuli, Romanfaction)

[MaximusMaxMax]

what is the effect if i take it from the enemy faction?

[Promethaus69]

I believe faction specific buildings were used to give tax bonuses to a nations capital in order to balance the game for the ai, therefore taking the faction specific building essentially cripples their economy- the ai usually cant recover economically when it loses its capital.