Commercial Hub

Information

Adjacency Bonuses:

• +2 Gold from each adjacent river tile
• +2 Gold from each adjacent Harbor tile
• +2 Gold from each adjacent Royal Navy Dockyard tile
• +1 Gold from every 2 adjacent District tiles
• +1 Gold from each adjacent Government plaza tile

Yields (Per Citizen):

1. +4 Gold

Trade Yields:

• Domestic:

1. +1 Production

• Foreign:

1. +3 Gold

Currently Commercial Hubs and Harbors are arguably the most impactful early game districts because of the Medieval Era dedication Free Inquiry. If you can get them online by that point and you can get the Civic Guilds to use the Civic Card Town Charters to get to Field Cannons (Ballistics) up to Artillery (Steel) before the Medieval Era ends.

This alone is reason to prioritize them as soon as possible but they are so feature packed that it's nearly impossible to play a game without getting them first. Here's a list of some of their strong points:

1. Flexibility: Each trade route is essentially another citizen working for your city -- for any of your cities you choose, which yields Food, Production, Science, Culture, Gold, Faith at your leisure
2. No maintenance cost: The Commercial Hub and Harbor Districts are the only two to my knowledge which do not cost you gold per turn to maintain -- neither the district itself nor the district buildings. In fact instead of costing you gold per turn they give you gold per turn
3. High Adjacencies: With +2 being standard adjacencies on your Commercial Hubs you can use them as a base district with which to get as many era score boosts as possible to progress further in the game
4. Available early: You can get and place these districts quite early. This allows you to "lock in" the district costs so that you can build them later if you have other priorities in the early game -- such as Defensive and Offensive wars

Commercial Hub Buildings

Tier 1

Tier 2

Tier 3

End