After the initial purchase, you can buy from Bolson for 100 rupees each .
: 3 Weapon Mounts, 3 Bow Mounts, and 3 Shield Mounts (perfect for storing rare items like the Great Elemental Weapons or the Hylian Shield ).
Buying the house is the prerequisite for the questline. Once you buy the home, one of Bolson’s employees, Hudson , leaves for the Akkala region. This triggers a massive quest where you help build an entire town from scratch, eventually unlocking a unique merchant who sells rare armor sets and a "hidden" shop for replacing the Hylian Shield if it breaks.
: Speak to the flamboyant construction boss, Bolson , behind the house.
: If you purchase every single upgrade, Bolson will furnish the house with a dining table and storage cabinets for free as a "bonus," officially completing the Hylian Homeowner side quest. The "Tarrey Town" Connection