Cant use Faction Blacksmith in my own city. Help

[Molferen]

Hey, i currently control Dragonstone but i am unable to access, the "Faction Blacksmith". I havent gotten rid of the Dragonstone faction yet, but i want to know how i can access it? Or if it's even possible in the current version of AWOIAF.
I heard you have to have a certain amount of "Faction Points" or what ever it's called but how am i gonna do that? What do i have to do to increase my standing with the city/faction so i can access it? Do i have to rid the entire Dragonstone faction from the map?

Any replies will help! Thank you in advance. 

[Tages Grey]

If you control your own kingdom  you will be unable to access the faction shop of the faction shop.  I believe Kings Landing may be the only faction shop you can access, if you are the ruler of your own faction.  If you belong to the Dragonstone Faction you should be able to access it at 70+ reputation points.  Hope this helps.

[Molferen]

Thank you for the reply, it definitely helps!

[Hobs]

Owning Kings Landing gives you access to the kingsguard armours, any other faction you need to have a high relation with them to access the faction shops.