Enact a new rule, “Buildings”:-

Each Settler has a publicly tracked list of Buildings called a Settlement, which defaults to being empty.

The Buildings that may exist are listed below, with their Cost in brackets and their effect listed after their Cost:

* Farm (2 Wood, 1 Sheep, 1 Wheat) As a Harvest Bonus, gain 1 Sheep or 1 Wheat.
* Quarry (2 Brick, 1 Wood) As a Harvest Bonus, gain 1 Stone.
* Church (2 Stone) Applies to a part of the Harvesting the Crop action.

A Settler may pay the Cost of a Building from their Stockpile, to add an instance of that Building to their Settlement.

Add a bullet point to the end of the “Harvesting the Crop” action (at the top level, not as part of the “optionally” sublist):-

* Apply the Harvest Bonus of any number of Buildings they control, in any order

And replace with “Replace the number for one of their domains with another up to two higher or lower than it” with:-

Replace the number for one of their domains with another up to two higher or lower than it (or with any number, if their Settlement contains a Church)