====== Dwarven Duchy Buildings ======
The building rebalance is included in **version 0.0.3**, released **18 October 2026**. Three specializations each have three tiers. Choose one chain for the duchy capital's separate slot.

===== Placement and bonus scope =====
Requires a qualifying castle, city or temple in the duchy capital, the appropriate province culture, and county-holder ownership of the associated duchy title. Tribal holdings do not gain a duchy slot. Ownership and culture must continue to satisfy the enabled conditions.

Each row gives the **total at that tier**, replacing lower levels. Gold is paid for that step before modifiers. **Holding** effects apply locally; **County** effects apply to its county; **Capital county** means the duchy capital county, not every county in the duchy; **Holder** effects affect the building owner. Stationed bonuses affect regiments stationed at that holding, not the whole army. Negative construction time/cost, upkeep and travel danger are beneficial. Development growth is not an instant Development level.

===== Choose a specialization =====
^ Family ^ Purpose ^
| High Clan Council | The high council organizes taxes, control, prestige and stewardship teaching. |
| Mountain Citadel | The mountain citadel unites fortified gates, garrisons, supply and organized reserves. |
| Great Foundry | The great foundry supplies armored infantry, crossbows and economical construction. |

===== High Clan Council =====
{{:dwarf:buildings:high_council.png?150}}

**Base time per step:** 1,825 days (5 years), before speed modifiers.

^ Tier ^ Required research ^ Gold for this step ^ Total effects and recipients ^
| 1 | Thane Assemblies | 485 | Capital county: +0.1 monthly control growth, +5% holding taxes; Holder: +0.25 prestige/month |
| 2 | Royal Councils | 725 | Capital county: +0.2 monthly control growth, +10% holding taxes; Holder: +0.5 prestige/month, +2% stewardship lifestyle XP |
| 3 | High Clan Compacts | 1100 | Capital county: +0.3 monthly control growth, +15% holding taxes, +5 popular opinion; Holder: +0.75 prestige/month, +4% stewardship lifestyle XP |

===== Mountain Citadel =====
{{:dwarf:buildings:citadel.png?150}}

**Base time per step:** 1,825 days (5 years), before speed modifiers.

^ Tier ^ Required research ^ Gold for this step ^ Total effects and recipients ^
| 1 | Layered Hold Defenses | 485 | Holding: +250 garrison; Holding: +1 fort level; Capital county: +15% supply, +15% garrison size, +15% hostile raid time, +3 defender advantage |
| 2 | Engineered Mountain Citadels | 725 | Holding: +500 garrison; Holding: +2 fort level; Capital county: +30% supply, +30% garrison size, +30% hostile raid time, +6 defender advantage, +10% levy reinforcement |
| 3 | Engineered Mountain Citadels | 1100 | Holding: +750 garrison; Holding: +3 fort level; Capital county: +45% supply, +45% garrison size, +45% hostile raid time, +9 defender advantage, +20% levy reinforcement |

===== Great Foundry =====
{{:dwarf:buildings:great_foundry.png?150}}

**Base time per step:** 1,825 days (5 years), before speed modifiers.

^ Tier ^ Required research ^ Gold for this step ^ Total effects and recipients ^
| 1 | Tempered Steel | 485 | Holding: +0.5 gold/month, +10% stationed heavy infantry damage, +7.5% stationed heavy infantry toughness, -3% construction cost; Capital county: +5% development growth |
| 2 | Master Armourers | 725 | Holding: +1 gold/month, +20% stationed heavy infantry damage, +15% stationed heavy infantry toughness, -6% construction cost, +10% stationed archers damage; Capital county: +10% development growth |
| 3 | Great Foundries | 1100 | Holding: +1.5 gold/month, +30% stationed heavy infantry damage, +22.5% stationed heavy infantry toughness, -9% construction cost, +20% stationed archers damage; Capital county: +15% development growth |

Fully restart CK3 after installing the mod changes. **Existing saves are sufficient; no new game is required for these building bonuses.** Existing IDs, research gates, costs, terrain rules and icons are preserved. Updating or reading the wiki needs no restart.

[[:buildings:dwarf|Ordinary buildings]] · [[:buildings:dwarf_duchies|Duchy buildings]] · [[:systems:progression|Research and building guides]] · [[:systems:dwarf_progression|Race progression]]