Regular building
Watermills
watermills_01Watermills turn all kinds of water movement, from tides to waterfalls, into rotation used for grinding, sawing, crushing, and fulling. Permits to operate a watermill are an easy and reliable source of additional tax for the owner of the holding.
Built in
Holding types whose building list names it (common/holdings).
Levels
| Level | Cost | Time | Levies | Garrison | Main effects |
|---|---|---|---|---|---|
| 1. Undershot Waterwheels | 200 gold | 1825 d | — | — | +0.7/month Tax, +10% Supply Limit, … |
| 2. Cranks and Connecting Rods | 350 gold | 1825 d | — | — | +1.15/month Tax, +20% Supply Limit, … |
| 3. Overshot Waterwheels | 485 gold | 1825 d | — | — | +1.6/month Tax, +30% Supply Limit, … |
| 4. Industrial Mills | 725 gold | 1825 d | — | — | +2.05/month Tax, +40% Supply Limit, … |
| 5. Organized Roads | 1,100 gold | 1825 d | — | — | +2.5/month Tax, +50% Supply Limit, … |
| 6. Ship Mills | 1,640 gold | 1825 d | — | — | +2.95/month Tax, +60% Supply Limit, … |
| 7. Levees and Dams | 2,375 gold | 1825 d | — | — | +3.4/month Tax, +70% Supply Limit, … |
| 8. Powdermills | 3,335 gold | 1825 d | — | — | +3.85/month Tax, +80% Supply Limit, … |
Level 1: Undershot Waterwheels
Province
- Tax+0.7/month
- Supply Limit+10%
- Holding Construction Cost-5%
- Building Construction Cost-5%
County
- Development Growth+0.04/month
- Key
watermills_01- Cost
- 200 gold
- Construction
- 1,825 days (5 yrs)
- Needs
- castle, city or temple level 1
- Innovation
- Windmills, Manorialism
- Terrain (one of)
- Mountains, Wetlands, Forest, Taiga, Jungle, Terraced Hills, By a major river
Level 2: Cranks and Connecting Rods
Province
- Tax+1.15/month
- Supply Limit+20%
- Holding Construction Cost-10%
- Building Construction Cost-10%
County
- Development Growth+0.06/month
- Key
watermills_02- Cost
- 350 gold
- Construction
- 1,825 days (5 yrs)
- Needs
- castle, city or temple level 1
- Innovation
- Windmills, Manorialism
- Terrain (one of)
- Mountains, Wetlands, Forest, Taiga, Jungle, Terraced Hills, By a major river
Level 3: Overshot Waterwheels
Province
- Tax+1.6/month
- Supply Limit+30%
- Holding Construction Cost-14%
- Building Construction Cost-14%
County
- Development Growth+0.08/month
- Development Growth+4%
- Holding Taxes+4%
- Key
watermills_03- Cost
- 485 gold
- Construction
- 1,825 days (5 yrs)
- Needs
- castle, city or temple level 1
- Innovation
- Windmills, Manorialism
- Terrain (one of)
- Mountains, Wetlands, Forest, Taiga, Jungle, Terraced Hills, By a major river
Level 4: Industrial Mills
Province
- Tax+2.05/month
- Supply Limit+40%
- Holding Construction Cost-18%
- Building Construction Cost-18%
County
- Development Growth+8%
- Development Growth+0.1/month
- Holding Taxes+8%
- Key
watermills_04- Cost
- 725 gold
- Construction
- 1,825 days (5 yrs)
- Needs
- castle, city or temple level 1
- Innovation
- Windmills, Manorialism
- Terrain (one of)
- Mountains, Wetlands, Forest, Taiga, Jungle, Terraced Hills, By a major river
Level 5: Organized Roads
Province
- Tax+2.5/month
- Supply Limit+50%
- Holding Construction Cost-22%
- Building Construction Cost-22%
County
- Development Growth+12%
- Development Growth+0.12/month
- Holding Taxes+12%
- Key
watermills_05- Cost
- 1,100 gold
- Construction
- 1,825 days (5 yrs)
- Needs
- castle, city or temple level 2
- Innovation
- Cranes
- Terrain (one of)
- Mountains, Wetlands, Forest, Taiga, Jungle, Terraced Hills, By a major river
Level 6: Ship Mills
Province
- Tax+2.95/month
- Supply Limit+60%
- Holding Construction Cost-24%
- Building Construction Cost-24%
County
- Development Growth+16%
- Development Growth+0.14/month
- Holding Taxes+16%
- Key
watermills_06- Cost
- 1,640 gold
- Construction
- 1,825 days (5 yrs)
- Needs
- castle, city or temple level 2
- Terrain (one of)
- Mountains, Wetlands, Forest, Taiga, Jungle, Terraced Hills, By a major river
Level 7: Levees and Dams
Province
- Tax+3.4/month
- Supply Limit+70%
- Holding Construction Cost-26%
- Building Construction Cost-26%
County
- Development Growth+20%
- Development Growth+0.16/month
- Holding Taxes+20%
- Key
watermills_07- Cost
- 2,375 gold
- Construction
- 1,825 days (5 yrs)
- Needs
- castle, city or temple level 3
- Terrain (one of)
- Mountains, Wetlands, Forest, Taiga, Jungle, Terraced Hills, By a major river
Level 8: Powdermills
Province
- Tax+3.85/month
- Supply Limit+80%
- Holding Construction Cost-30%
- Building Construction Cost-30%
County
- Development Growth+24%
- Development Growth+0.18/month
- Holding Taxes+24%
- Key
watermills_08- Cost
- 3,335 gold
- Construction
- 1,825 days (5 yrs)
- Needs
- castle, city or temple level 3
- Terrain (one of)
- Mountains, Wetlands, Forest, Taiga, Jungle, Terraced Hills, By a major river
Source: game/common/buildings/00_standard_economy_buildings.txt, game/common/holdings/00_holdings.txt, game/common/script_values/00_building_values.txt and the English localisation, Crusader Kings III 1.20.0.3.