Depends. If you like to hoard extra gear, and swap Companions a lot, than a house can be useful. (I suggest Nirvanna House as it has the Town Vault Access Ord inside the house.
BUT, if you're playing a more fast paced game with less grinding, and not swapping Companions, you might save your gold for equipment, potions or Advanced Skills. (The +2 Belts cost almost as much as the New Garand house.) Between the the four town Vaults, the two storage chests in the Tower of Tremadan and the bag of holding, you really do have a decent amount of storage space, even without a house.
What I suggest is keeping your main character's gear, potions and quest items in Town Vaults, and stashing long term items in the Tower (long term quest items, items you may need once in the game, gear for your non-primary Companions). That allows you to swap out elemental protection in town as needed per quest / area, And keeps your Vaults from getting too cluttered with rarely used items.
Most players will be able to acquire the New Garand House far earlier in the game.
Nivarian House:
https://www.exiledkingdoms.com/wiki/index.php?title=Nivarian_House/map
New Garand House:
https://www.exiledkingdoms.com/wiki/index.php?title=New_Garand_House