Although your stronghold may be unlocked however from jack's blog

Strongholds function as Lost Ark's housing for players and crafting systems Lost Ark Gold. At around level 25 Your stronghold can serve as a base of operations for crafting, locating new tools, as well as completing the daily tasks. You are able to decorate and live inside your castle like other MMO residences, but Strongholds in Lost Ark provide more than that.

The most important function of your stronghold is the creation of healing potions and battle items to aid in the final game. If you do not want to make thousands Gold buying consumables from others, you'll want to build your own stronghold. You'll get many additional benefits for doing so including the ability of completing passively daily tasks, and boost alternative characters to levels of 50.

You'll be granted an opportunity to secure a stronghold once you've completed that "Clerk Theo's Invite" quest. You'll unlock this quest upon taking back Luterra Castle, an event that takes place during the main story around level 25. Completing the quest chain will unlock your castle and its associated fast-travel tune.

Although your stronghold may be unlocked however, it will not be at its maximum potential. Additional functions for your estate can be unlocked by completing quests you've obtained from your stronghold, finishing research projects, or increasing the rank that your house enjoys Cheapest Lost Ark Gold.Make sure to use your personal storage space before heading out on an adventure to keep your inventory from becoming clogged.