Frank the Architect will help you upgrade your Post Office with a fresh new look! An upgraded Post Office will increase your population cap, provide better energy, and give you a chance to get City Seals when collecting.


Before you get started, Here’s a quick summary of this feature!
Benefits of Upgrading your Post Office

Increased population cap.
More energy when collecting.
Chance to get City Seals from upgraded Post Offices
Cool new look!

Upgrading to Level 2
You will have the option to upgrade your Post Office when your city reaches 650 population or above. You will see the familiar upgrade arrow above your Post Office:


Click the building to bring up the upgrade window. Upgrading to Level 2 requires you to add 2 new crew members, for a total of 7. Once you have upgraded your Post Office, you will see the design upgrade as well


Result: At Level 2, your Post Office supports 150 population, gives you a chance to get more energy, as well as a chance to receive City Seals when collecting.

Upgrading to Level 3
Level 3 Upgrade Requirements:

Collect from Level 2 Post Office 5 times.
Reach 2,200 or more population.

After you have met the upgrade requirements, click your Post Office to bring up the upgrade window. Upgrading to Level 3 requires you to add 3 additional crew members, for a total of 10.

Result: At Level 3, your Post Office Supports 500 population, you have an increased chance to receive City Seals and more energy when collecting.

Frequently Asked Questions

Q: Can I still have more than one Post Office?

A: Yes.

Q: Do I have to upgrade each one separately?

A: Yes.

Q: If I delete a Post Office, do I have to start the upgrade process again?

A: Yes.

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