You'll unlock the increase to 150 storage slots via a new goal in the game (again, this goal will roll out to all users in the near future, regardless of level, but you'll need to be at least Level 31 to actually complete it). The goal, Maximum Storage, asks you to complete three tasks, one of which requires you to have constructed an airport in your town:
- Ask for 25 Markers
- Collect 30 Suitcases
- Unload 30 Caribbean Cruise Ships
The Markers, of course, come from asking friends to send them to you, while the Suitcases can be found at random when collecting from Passenger Planes in your city's airport. You'll need to have built the separate Passenger Terminal in order to send out Passenger Planes, so make sure to increase your priority on building that particular item if storage is an issue in your town.
Once you've completed this goal, your storage Warehouse will automatically update to its new capacity of 150 items. You'll also find that the storage menu has been revamped, allowing you to view items based on their categories: businesses, homes, decorations, community buildings and so on. This is similar to the general inventory upgrades that (in theory) have also rolled out to all users, but unfortunately a search function isn't available as of this writing. We'll make sure to let you know if further increases to storage release in the future, so stay tuned!
Are you excited to have a storage capacity of 150 items in CityVille, or will you run through that all too quickly as well? Sound off in the comments.