A house vault is a storage area in your home. It is accessable through the house menu (type /house or right click the front door) or by right-clicking your market board. Bags may be placed in the vault slots to expand your storage room.
The number of slots available in your vault varies by the size home you own. The smallest apartments have two slots; the largest homes have six.
Only the owner of a home may access the house vault. However, you may access your own vault in home where you have Trustee access.