The drop off building must be within 2 tiles (the equivelant of 2 houses) of a gold, iron, or stone mine to To gain these bonuses for any particular ore. The following examples assume a 2 tile or less distance from ore to drop off building.
- Populating a Settlement with 5 citizens will turn that settlement into a Town Center. This will give you a bonus of 25%. (Tho in practice it is more like 27%)
- Populating a Town Center with an additional 10 citizens will turn that Town Center into a Capital. This will give you a bonus of 50% in relation to what you would get from a settlement. (Tho in practice it is more like 47%)
- Populating a Capital with an additional 35 will give you a bonus of 100% in relation to what you would get from a settlement.
- Populating a Granary with 8 citizens will grant a 25% drop off bonus of food gathered.
*Citizens added to buildings will no longer count as part of you population.
**Citizens added to buildings can not be removed from those buildings.