Info about Special Buildings location and effects.
All Special Buildings
Mahabodhi Temple (Gaya)
Holding
- Tax: +3.0/month
County
- Holding Taxes: +20%
- Development Growth: +30%/month
- Development Growth: +0.2/month
Realm
- Learning Per Level of Devotion: +2
- Piety: +1.0/month
- Monthly Renown: +5%
- Different Faith Opinion: +5
- Religious Vassal Opinion: +10
- Different Faith Popular Opinion: -20%
Imam Ali Mosque (An-Najaf/Kufa)
Holding
- Tax: +3.0/month
County
- Holding Taxes: +20%
- Development Growth: +30%/month
- Development Growth: +0.2/month
Realm
- Piety: +1.0/month
- Monthly Renown: +5%
- Men-at-Arms Maintenance: -10.00%
- Same Faith Opinion: +5
- Control Growth Factor: +10.00%
Great Mosque of Mecca (Mecca)
Holding
- Tax: +3.0/month
County
- Holding Taxes: +15%
- Development Growth: +35%/month
- Development Growth: +0.3/month
Realm
- Piety: +1.0/month
- Monthly Renown: +5%
- Men-at-Arms Maintenance: -10.00%
- Same Faith Opinion: +5
- Control Growth Factor: +10%/month
Great Mosque of Cordoba (Cordoba)
Holding
- Tax: +3.0/month
County
- Levy Size: +15%
- Holding Taxes: +15%
- Development Growth: +20%/month
- Development Growth: +0.2/month
Realm
- Piety: +0.5/month
- Monthly Renown: +5%
- Different Culture Opinion: +5
- Development Growth in Realm Capital: +0.2/month
Great Mosque of Djenne (Jenne-Jeno)
County
- Levy Size: +15%
- Holding Taxes: +15%
- Development Growth: +20%/month
- Development Growth: +0.2/month
Realm
- Piety: +1.0/month
- Monthly Renown: +5%
- Building Construction Gold Cost: -15%
Great Mosque of Samarra (Samarra)
County
- Holding Taxes: +20%
- Development Growth: +20%/month
- Development Growth: +0.2/month
Realm
- Piety: +0.3/month
- Building Construction Time: -10%
- Building Construction Gold Cost: -15%
Cologne Cathedral (Cologne)
Holding
- Tax: +2.0/month
County
- Holding Taxes: +20%
- Development Growth: +20%/month
- Development Growth: +0.1/month
Realm
- Monthly Piety: +15%
- Piety Per Knight: +0.1
- Monthly Renown: +5%
- Knight Effectiveness: +20%
- Control Growth Factor: +5%/month
Canterbury Cathedral (Canterbury/Kent)
Holding
- Tax: +3.0/month
County
- Holding Taxes: +20%
- Development Growth: +20%/month
- Development Growth: +0.1/month
Realm
- Piety: +0.3/month
- Piety Per Powerful Vassal on the Council: +0.2/month
- Monthly Renown: +5%
- Control Growth Factor: +5%/month
The Prophetic Mosque (Medina)
County
- Supply Limit: +100%
- Holding Taxes: +20%
- Development Growth: +75%/month
- Development Growth: +0.2/month
Realm
- Piety: +0.5/month
- Knight Effectiveness: +20%
- Holy Order Hire Cost: -15%
- Popular Opinion: +5
Doge’s Palace (Venezia)
Holding
- Defender Advantage: +10
- Fort Level: +3
- Levy Size: +100%
- Garrison Size: +100%
County
- Hostile Raid Time: +50%
- Holding Taxes: +50%
- Development Growth: +30%/month
- Development Growth: +0.3/month
Walls of Genoa (Genoa)
Holding
- Fort Level: +2
- Garrison Size: +25%
County
- Defender Advantage: +5
- Hostile Raid Time: +50%
- Holding Taxes: +10%
- Development Growth: +10%/month
- Development Growth: +0.2/month
Visby Ringmur (Visby/Gotland)
Holding
- Fort Level: +1
- Garrison Size: +25%
County
- Defender Advantage: +5
- Hostile Raid Time: +50%
- Holding Taxes: +15%
- Development Growth: +15%/month
- Development Growth: +0.2/month
- Popular Opinion: +5
Walls of Benin (Benin)
Holding
- Fort Level: +2
- Garrison Size: +50%
County
- Defender Advantage: +5
- Hostile Raid Time: +50%
- Levy Size: +50%
- Holding Taxes: +20%
- Development Growth: +75%/month
- Development Growth: +0.2/month
Theodosian Walls (Constantinople)
Uses Duchy Building Slot
Holding
- Fort Level: +5
- Garrison Size: +100%
- Garrison: +1000
County
- Hostile Raid Time: +50%
- Levy Size: +300%
- Holding Taxes: +300%
- Development Growth: +20%/month
- Development Growth: +0.3/month
All Holdings in Duchy
- Levy Size: +15%
- Holding Taxes: +15%
Aurelian Walls (Rome/Roma)
Uses Duchy Building Slot
Holding
- Fort Level: +3
- Garrison Size: +50%
- Garrison: +500
County
- Hostile Raid Time: +50%
- Development Growth: +10%/month
- Development Growth: +0.2/month
All Holdings in Duchy
- Levy Size: +15%
- Holding Taxes: +15%
The Colosseum (Rome/Roma)
Holding
- Building Construction Time: -10%
Realm
- Army Maintenance: -5%
Iron Pillar of Delhi (Indraprastha/Delhi)
County
- Development Growth: +10%/month
- Development Growth: +0.1/month
Realm
- Monthly Prestige: +5%
- Army Maintenance: -5%
- Heavy Infantry Toughness: +10%
- Heavy Cavalry Toughness: +10%
Iron Pillar of Dhar (Dhara)
County
- Levy Size: +15%
- Development Growth: +0.1/month
Realm
- Monthly Renown: +5%
- Advantage: +5
The Pyramids (Gizeh/Giza)
County
- Development Growth: +0.1/month
Realm
- Monthly Renown: +5%
- Short Reign Duration -20%
Stonehenge (Salisbury/Wiltshire)
Realm
- Learning: +2
- Faith Conversion Cost: -20%
- Monthly Learning Lifestyle Experience: +15%
Offa’s ♥♥♥♥ (Gloucester/Gloucestershire)
Holding
- Defender Advantage: +2
Hadrian’s Wall (Whitehaven, Carlisle, Hexham, Bebbanburg)
Holding
- Building Construction Gold Cost: -10%
- Petra (Baidha-Petra/Negev) Holding
- Tax: +0.8/month
County
- Supply Limit: +25%
- Holding Taxes: +10%
- Development Growth: +15%/month
- Development Growth: +0.1/month
Buddhas of Bamiyan (Bamiyan/Bamian)
County
- Holding Taxes: +10%
- Development Growth: +75%/month
- Development Growth: +0.2/month
Realm
- Diplomacy Per Level of Devotion: +1
- Monthly Piety: +10%
Alhambra (Granada)
Holding
- Defender Advantage: +2
- Fort Level: +2
- Garrison: +250
Citadel of Aleppo (Halab/Aleppo)
Holding
- Defender Advantage: +2
- Fort Level: +2
- Garrison: +250
Realm
- Prestige: +0.1/month
House of Wisdom (Baghdad)
County
- Holding Taxes: +20%
- Development Growth: +20%/month
- Development Growth: +0.2/month
Realm
- Learning Per Level of Fame: +2
- Monthly Lifestyle Experience: +15%
- Different Culture Opinion: +10
- Cultural Fascination Progress: +15%
- Faith Creation and Reformation Cost: -20%
The Tower of London (Lunden/Middle Seaxe)
Holding
- Defender Advantage: +6
- Fort Level: +6
- Garrison: +750
County
- Holding Taxes: +5%
- Development Growth: +10%/month
- Development Growth: +0.1/month
Realm
- Dread Gain: +30%
Notre-Dame (Paris/Ile de France)
Holding
- Tax: +2.0/month
County
- Holding Taxes: +20%
- Development Growth: +30%/month
- Development Growth: +0.2/month
- Popular Opinion: +5
Realm
- Stewardship Per Level of Devotion: +1
- Piety: +1.0/month
- Monthly Renown: +5%
Brihadeeswarar Temple (Tanjavur/Cholamandalam)
County
- Holding Taxes: +20%
- Development Growth: +20%/month
- Development Growth: +0.1/month
Realm
- Stewardship Per Level of Devotion: +1
- Piety: +0.2/month
- Monthly Renown: +5%
- Same Faith Opinion: +5
Shwedagon Pagoda (Dagon)
Holding
- Tax: +2.0/month
County
- Holding Taxes: +20%
- Development Growth: +20%/month
- Development Growth: +0.2/month
Realm
- Piety: +0.5/month
- Monthly Renown: +5%
- Tyranny Gain: -10%
- Clergy Opinion: +5
Ananda Temple (Pagan)
Holding
- Tax: +3.0/month
County
- Development Growth: +20%/month
- Development Growth: +0.1/month
Realm
- Learning: +2
- Monthly Piety: +5%
- Control Growth Factor: +10%/month
- Popular Opinion: +5
The Friday Mosque (Isfahan)
County
- Holding Taxes: +20%
- Development Growth: +25%/month
- Development Growth: +0.2/month
Realm
- Level of Devotion Impact: +50%
Khajuraho (Chanderi)
Holding
- Tax: +1.5/month
County
- Holding Taxes: +20%
- Development Growth: +20%/month
- Development Growth: +0.1/month
Realm
- Monthly Piety Per Powerful Vassal on the Council: +5%
- Different Faith Opinion: +10
- Faith Conversion Cost: -20%
Palace of Aachen (Aachen)
County
- Development Growth: +0.2/month
Realm
- Prestige Per Powerful Vassal on the Council: +0.1/month
- Monthly Renown:+5%
- Tyranny Gain: -20%
- Clergy Opinion: +5
- Powerful Vassal Opinion: +5
Hagia Sophia (Constantinople)
County
- Development Growth: +20%/month
Realm
- Learning: +2
- Intrigue Per Level of Fame: +2
- Piety Per Knight: +0.1
- Monthly Renown: +5%
- Number of Knights: +2
- Knight Effectiveness: +20%
Dome of the Rock (Jerusalem)
Holding
- Tax: +3.0/month
County
- Holding Taxes: +30%
- Development Growth: +30%/month
- Development Growth: +0.2/month
Realm
- Martial Per Level of Devotion: +1
- Monthly Piety Per Knight: +3%
- Monthly Renown: +5%
- Knight Effectiveness: +20%
- Control Growth Factor: +10%/month
Rammelsberg Mines (Goslar/Göttingen)
Holding
- Tax: +5.0/month
County
- Holding Taxes: +20%
- Development Growth: +5%/month
Kutná Hora Mine (Čáslav)
Holding
- Tax: +3.0/month
County
- Holding Taxes: +10%
- Development Growth: +5%/month
Kremnica Mines (Turóc/Trenscen)
Holding
- Tax: +3.0/month
County
- Development Growth: +5%/month
The Falun Mines (Falene/Dalabergslagen)
Holding
- Tax: +2.0/month
County
- Levy Size: +10%
- Holding Taxes: +5%
- Development Growth: +5%/month
Schwaz Mine (Innsbruck)
Holding
- Tax: +3.0/month
County
- Development Growth: +10%/month
Argentiera Mine (Iglesias/Cagliari)
Holding
- Tax: +3.0/month
County
- Development Growth: +10%/month
The Kollur Mines (Ellur/Vengipura)
Holding
- Tax: +5.0/month
County
- Holding Taxes: +20%
- Development Growth: +10%/month
Siderokausia Mines (Ierrisos/Chalkidike)
Holding
- Tax: +3.0/month
County
- Development Growth +10%/month
Malinese Gold Mines
Effects taken from game files
Holding
- Tax: +?/month
County
- Holding Taxes: +10%
- Development Growth: +5%/month
Hall of Heroes (Decision Pagans can take)
Holding
- Levy: +150
- Garrison: +75
Realm
- Prowess: +1
- Piety Per Knight: +0.1
- Knight Effectiveness: +5%
Generic University (Decision for Oxford, Cambridge, Bologna, Paduan, Napoli, others)
County
- Development Growth: +10%/month
Realm
- Learning Per Level of Fame: +1
- Renown: +0.2/month
- Monthly Lifestyle Experience: +5%
Al-Azhar University (Cairo)
County
- Development Growth: +20%/month
- Development Growth: +0.1/month
Realm
- Diplomacy Per Level of Fame: +1
- Learning Per Level of Fame: +1
- Renown: +0.2/month
- Monthly Lifestyle Experience: +10%
The University of Sankore (Tirakka)
County
- Development Growth: +20%/month
- Development Growth: +0.1/month
Realm
- Martial Per Level of Fame: +1
- Learning Per Level of Fame: +1
- Renown: +0.2/month
- Monthly Lifestyle Experience: +10%
The University of Siena (Siena)
County
- Development Growth: +20%/month
- Development Growth: +0.1/month
Realm
- Intrigue Per Level of Fame: +1
- Learning Per Level of Fame: +1
- Renown: +0.2/month
- Monthly Lifestyle Experience: +10%
Nalanda University (Pataliputra/Magadha)
County
- Development Growth: +20%/month
- Development Growth: +0.1/month
Realm
- Stewardship Per Level of Fame: +1
- Learning Per Level of Fame: +1
- Renown: +0.2/month
- Monthly Lifestyle Experience: +10%
Sicilian Parliament (Palermo or Napoli)
- To build take decision as Sicilian King of Sicily.
- Gives the holding a modifier for 150 years
Holding
- Building Construction Time: -5%
- Building Construction Gold Cost: -5%
- Development Growth: +10%month
Greenhouse
I have only seen this in the game files
County
- Tax: +1.0/month
- Development Growth: +25%/month
- Popular Opinion: +25
Realm
- Health: +0.25
- Prestige: +1.0/month
More Guides:
- Crusader Kings III – Border Gore and You
- Crusader Kings III – Ultimate Guide for Playing Tall & Wide
- Crusader Kings III – How to Revive Zunism (Easy & No Exploits)
- Crusader Kings III – How to Take Down a Kingdom Quick
- Crusader Kings III – Defusing Vassal Factions Guide
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