Crusader Kings III: Special Buildings Guide

Intro

This guide was created using data available from the ingame files (00_special_buildings.txt) as well as simply looking at the special buildings ingame. Some county names will be different depending on the start date.

You can find the txt file in

C:\Program Files (x86)\Steam\steamapps\common\Crusader Kings III\game\common\buildings

If you want more info about all CK3 buildings you can view the CK3 wiki here: https://ck3.paradoxwikis.com/Barony

Special Buildings

Special Buildings: Mahabodhi Temple (Gaya)

Effects:

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%


Special Buildings: Imam Ali Mosque (An-Najaf/Kufa)

Effects:

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%


Special Buildings: Great Mosque of Mecca (Mecca)

Effects:

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


Special Buildings: Great Mosque of Cordoba (Cordoba)

Effects: 

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


Special Buildings: Great Mosque of Djenne (Jenne-Jeno)

Effects: 

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%


Special Buildings: Great Mosque of Samarra (Samarra)

Effects:

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%


Special Buildings: Cologne Cathedral (Cologne)

Effects:

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


Special Buildings: Canterbury Cathedral (Canterbury/Kent)

Effects:

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


Special Buildings: The Prophetic Mosque (Medina)

Effects:

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


Special Buildings: Doge’s Palace (Venezia)

Effects:

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


Special Buildings: Walls of Genoa (Genoa)

Effects:

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


Special Buildings: Visby Ringmur (Visby/Gotland)

Effects:

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


Special Buildings: Walls of Benin (Benin)

Effects:

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


Special Buildings: Theodosian Walls (Constantinople) Uses Duchy Building Slot

Effects:

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%


Special Buildings: Aurelian Walls (Rome/Roma) Uses Duchy Building Slot

Effects:

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%


Special Buildings: The Colosseum (Rome/Roma)

Effects:

Holding
Building Construction Time: -10%
Realm
Army Maintenance: -5%


Special Buildings: Iron Pillar of Delhi (Indraprastha/Delhi)

Effects:

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%


Special Buildings: Iron Pillar of Dhar (Dhara)

Effects:

County
Levy Size: +15%
Development Growth: +0.1/month
Realm
Monthly Renown: +5%
Advantage: +5


Special Buildings: The Pyramids (Gizeh/Giza)

Effects:

County
Development Growth: +0.1/month
Realm
Monthly Renown: +5%
Short Reign Duration -20%


 

Special Buildings: Stonehenge (Salisbury/Wiltshire)

Effects:

Realm
Learning: +2
Faith Conversion Cost: -20%
Monthly Learning Lifestyle Experience: +15%


Special Buildings: Offa’s ♥♥♥♥ (Gloucester/Gloucestershire)

Effects:

Holding
Defender Advantage: +2


Special Buildings: Hadrian’s Wall (Whitehaven, Carlisle, Hexham, Bebbanburg)

Effects:

Holding
Building Construction Gold Cost: -10%


Special Buildings: Petra (Baidha-Petra/Negev)

Effects:

Holding
Tax: +0.8/month
County
Supply Limit: +25%
Holding Taxes: +10%
Development Growth: +15%/month
Development Growth: +0.1/month


Special Buildings: Buddhas of Bamiyan (Bamiyan/Bamian)

Effects:

County
Holding Taxes: +10%
Development Growth: +75%/month
Development Growth: +0.2/month
Realm
Diplomacy Per Level of Devotion: +1
Monthly Piety: +10%


Special Buildings: Alhambra (Granada)

Effects:

Holding
Defender Advantage: +2
Fort Level: +2
Garrison: +250


Special Buildings: Citadel of Aleppo (Halab/Aleppo)

Effects:

Holding
Defender Advantage: +2
Fort Level: +2
Garrison: +250
Realm
Prestige: +0.1/month


Special Buildings: House of Wisdom (Baghdad)

Effects:

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%


Special Buildings: The Tower of London (Lunden/Middle Seaxe)

Effects:

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%


Special Buildings: Notre-Dame (Paris/Ile de France)

Effects:

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%


Special Buildings: Brihadeeswarar Temple (Tanjavur/Cholamandalam)

Effects:

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


Special Buildings: Shwedagon Pagoda (Dagon)

Effects:

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


Special Buildings: Ananda Temple (Pagan)

Effects:

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


Special Buildings: The Friday Mosque (Isfahan)

Effects:

County
Holding Taxes: +20%
Development Growth: +25%/month
Development Growth: +0.2/month
Realm
Level of Devotion Impact: +50%


Special Buildings: Khajuraho (Chanderi)

Effects:

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%


Special Buildings: Palace of Aachen (Aachen)

Effects:

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


Special Buildings: Hagia Sophia (Constantinople)

Effects:

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%


Special Buildings: Dome of the Rock (Jerusalem)

Effects:

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


Special Buildings: Rammelsberg Mines (Goslar/Göttingen)

Effects: 

Holding
Tax: +5.0/month
County
Holding Taxes: +20%
Development Growth: +5%/month


Special Buildings: Kutná Hora Mine (Čáslav)

Effects:

Holding
Tax: +3.0/month
County
Holding Taxes: +10%
Development Growth: +5%/month


Special Buildings: Kremnica Mines (Turóc/Trenscen)

Effects:

Holding
Tax: +3.0/month
County
Development Growth: +5%/month


Special Buildings: The Falun Mines (Falene/Dalabergslagen)

Effects:

Holding
Tax: +2.0/month
County
Levy Size: +10%
Holding Taxes: +5%
Development Growth: +5%/month


Special Buildings: Schwaz Mine (Innsbruck)

Effects:

Holding
Tax: +3.0/month
County
Development Growth: +10%/month


Special Buildings: Argentiera Mine (Iglesias/Cagliari)

Effects:

Holding
Tax: +3.0/month
County
Development Growth: +10%/month


Special Buildings: The Kollur Mines (Ellur/Vengipura)

Effects: 

Holding
Tax: +5.0/month
County
Holding Taxes: +20%
Development Growth: +10%/month


Special Buildings: Siderokausia Mines (Ierrisos/Chalkidike)

Effects:

Holding
Tax: +3.0/month
County
Development Growth +10%/month


Special Buildings: Malinese Gold Mines (Somewhere in Mali? I can’t find the county) Effects taken from game files

Effects: 

Holding
Tax: +?/month
County
Holding Taxes: +10%
Development Growth: +5%/month


Special Buildings: Hall of Heroes (Decision Pagans can take)

Effects:

Holding
Levy: +150
Garrison: +75
Realm
Prowess: +1
Piety Per Knight: +0.1
Knight Effectiveness: +5%


Special Buildings: Generic University (Decision for Oxford, Cambridge, Bologna, Paduan, Napoli, others?)

Effects: 

County
Development Growth: +10%/month
Realm
Learning Per Level of Fame: +1
Renown: +0.2/month
Monthly Lifestyle Experience: +5%


Special Buildings: Al-Azhar University (Cairo)

Effects:

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%


Special Buildings: The University of Sankore (Tirakka)

Effects:

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%


Special Buildings: The University of Siena (Siena)

Effects:

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%


Special Buildings: Nalanda University (Pataliputra/Magadha)

Effects:

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%


Special Buildings: Sicilian Parliament (Palermo or Napoli) To build take decision as Sicilian King of Sicily. Gives the holding a modifier for 150 years

Effects:

Holding
Building Construction Time: -5%
Building Construction Gold Cost: -5%
Development Growth: +10%month


Special Buildings: Glass Monument Decision Requiring Lunatic Trait. Is called Greenhouse ingame files

Effects:

County
Tax: +1.0/month
Development Growth: +25%/month
Popular Opinion: +25
Realm
Health: +0.25
Prestige: +1.0/month

Written by: Helios

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