Special buildings – CK3 Wiki
Holding effects
County effects
Realm effects
Barony
Required innovation
Description
Aurelian Walls
-
+3
Fort Level
-
+50%
Garrison Size
-
+500
Garrison
-
+10%
Monthly Development
-
+0.2
Monthly Development
-
+50%
Hostile Raid Time
-
+15%
Duchy Levy Size
-
+15%
Duchy Holding Taxes
Rome
Always constructed
The Aurelian Walls were built during the reign of the Roman Emperors Aurelian and Probus. To this day they provide formidable defense, completely enclosing the seven hills of Rome.
Doge’s Palace
-
+3
Fort Level
-
+10
Defender Advantage
-
+100%
Levy Size
-
+100%
Garrison Size
-
+50%
Holding Taxes
-
+30%
Monthly Development
-
+0.3
Monthly Development
-
+50%
Hostile Raid Time
Venezia
Always constructed
- Republican Government
The Doge’s Palace acts as the residence for the government of the Republic of Venice. An impressive structure, it houses multiple chambers dedicated to things such as the Council, Senate, administration, and justice.
Hadrian’s Wall
−10%
Building Construction Gold Cost
Bebbanburg
Carleol
Hexham
Whitehaven
Always constructed
Hadrian’s Wall was built during Roman times to keep the northern Picts out of the province of Britannia. Nowadays it serves no defensive purpose, but the stones make for a cheap and convenient source of building material!
House of Wisdom
-
+20%
Holding Taxes
-
+20%
Monthly Development
-
+0.2
Monthly Development
-
+2
Learning per Level of Fame
-
+10
Different Culture Opinion
-
+15%
Cultural Fascination Progress
-
+15%
Monthly Lifestyle Experience
-
−20%
Faith Creation and Reformation Cost
Baghdad
Always constructed
The House of Wisdom contains a vast collection of books, and the scribes therein work tirelessly both day and night to translate even more great works of literature. The sources vary from Greek, Persian, Indian and many more — truly, it contains the entire world’s knowledge! A shining beacon of human knowledge! And comfortably far from the illiterate horsemen of the steppe…
Iron Pillar of Delhi
-
+10%
Monthly Development
-
+0.1
Monthly Development
-
+5%
Monthly Prestige
-
−5%
Army Maintenance
-
+10%
Heavy Cavalry Toughness
-
+10%
Heavy Infantry Toughness
Indraprastha
Always constructed
The mighty Iron Pillar of Delhi stands as a symbol to the glory of King Chandragupta II, though subsequent rulers have also etched their names into it. Despite having stood for a long time, there’s no trace of rust – a testament to the skill of Indian ironsmiths!
Offa’s Dyke
+2
Defender Advantage
Chester
Clifford
Clun
Gloucester
Hereford
Shrewsbury
Wigmore
Always constructed
Offa’s Dyke, which is a long ditch flanked by a wall of earth, was constructed by the Anglo-Saxon king of Mercia to defend the border towards Wales. This raised earthwork offers an advantage to whoever stands on the side of the wall, as any attackers have to fight an uphill battle from the ditch.
Palace of Aachen
+0.2
Monthly Development
-
+5%
Monthly Renown
-
−20%
Tyranny Gain
-
+5
Clergy Opinion
-
+5
Powerful Vassal Opinion
-
+0.1
Monthly Prestige per Powerful Vassal on the Council
Aachen
Always constructed
The Palace of Aachen was chosen by Charlemagne to be the center of power of the Carolingian Empire. It served a both political and religious purpose, and is still an excellent place for hosting important gatherings.
Petra
+0.8
Monthly Tax
-
+10%
Holding Taxes
-
+15%
Monthly Development
-
+0.1
Monthly Development
-
+25%
Supply Limit
Baidha-Petra
Always constructed
The city of Petra is a true wonder of the ancient world. Carved directly out of naturally occuring rose-tinted rock, the city stands as a curiosity that intrigues even the mightiest sultan.
The Colosseum
−10%
Building Construction Time
−5%
Army Maintenance
Rome
Always constructed
The Colosseum is one of the largest amphitheaters ever built and has hosted countless spectacles such as gladiatorial combat, animal hunts and even reconstructed sea battles. Its construction was started by the Roman emperor Vespasian in AD 72 and was completed in AD 80 under his successor, Titus.
Despite its vibrant history, its primary use today is for harvesting marble and bronze for use elsewhere.
The Pyramids
+0.1
Monthly Development
-
+5%
Monthly Renown
-
−20%
Short Reign Opinion
Gizeh
Always constructed
The pyramids, most prominently the one of Cheops, stand as wonders of the ancient world. Vast and impressive, they enhance the image of any ruler who controls them.
Theodosian Walls
-
+5
Fort Level
-
+100%
Garrison Size
-
+1000
Garrison
-
+300%
Holding Taxes
-
+20%
Monthly Development
-
+0.3
Monthly Development
-
+50%
Hostile Raid Time
-
+300%
Levy Size
-
+15%
Duchy Levy Size
-
+15%
Duchy Holding Taxes
Constantinople
Always constructed
The Theodosian Walls were built during the reign of Emperor Theodosius II in the early 5th century, but they still remain some of the most formidable fortifications built by human hands.
Walls of Genoa
-
+2
Fort Level
-
+25%
Garrison Size
-
+10%
Holding Taxes
-
+10%
Monthly Development
-
+0.2
Monthly Development
-
+50%
Hostile Raid Time
-
+5
Defender Advantage
Genoa
Always constructed
The Walls of Genoa were built in the 9th century after the city was granted significant autonomy. The walls, together with the protection of the coastline, allow the area to develop and prosper.
Iron Pillar of Dhar
-
+0.1
Monthly Development
-
+15%
Levy Size
-
+5%
Monthly Renown
-
+5
Advantage
Dhara
- None
- Always constructed in 1066
The Iron Pillar of Dhar is constructed from the molten-down arms of an entire army. The craftsmanship is truly astounding, bringing glory upon the dynasty which holds it.
Stonehenge
-
+2
Learning
-
+15%
Monthly Learning Lifestyle Experience
-
-20%
Faith Conversion Cost
Salisbury
Always constructed
Stonehenge is an ancient, mystical structure that has inspired many a scholar. Even today, in these enlightened times, learned men from all around Britain flock to study it. What truly is its purpose?
The Tower of London
-
+6
Fort Level
-
+6
Defender Advantage
-
+750
Garrison
-
+5%
Holding Taxes
-
+10%
Monthly Development
-
+0.1
Monthly Development
+30%
Dread Gain
Lunden
Battlements
The Tower of London is a castle that serves as both a vital fortification and a prison. The central tower is called the ‘White Tower’ and houses the ruling class. The position of the Tower of London means that it’s vital to the defense of the entire County.
Visby Ringmur
-
+1
Fort Level
-
+25%
Garrison Size
-
+15%
Holding Taxes
-
+15%
Monthly Development
-
+0.2
Monthly Development
-
+50%
Hostile Raid Time
-
+5
Defender Advantage
-
+5
Popular Opinion
Visby
Battlements
The Visby City Wall protects the city from external threats such as raiders or Danes. It also efficiently keeps out tax collectors sent by the Thing of Gotland! To get to the riches within, assailants must first deal with a plethora of towers all manned by archers.
Walls of Benin
-
+2
Fort Level
-
+50%
Garrison Size
-
+20%
Holding Taxes
-
+75%
Monthly Development
-
+0.2
Monthly Development
-
+50%
Hostile Raid Time
-
+5
Defender Advantage
-
+50%
Levy Size
Benin City
Battlements
The Walls of Benin are a massive series of earthworks (Iya in the Edo language), that encircle the entirety of Benin. The walls are built of a ditch and dike structure, with an inner moat and an exterior rampart.
Golden Gate of Kyiv
-
+2
Fort Level
-
+2
Defender Advantage
-
+250
Garrison
-
+10%
Holding Taxes
-
+10%
Monthly Development
-
+0.1
Monthly Development
-
+10%
Monthly Piety
-
+10%
Monthly Prestige
Kyiv
Battlements
Modeled and named after a gate in Constantinople, the Golden Gate of Kyiv serves as both an entrance to the city and a triumphal arch. The golden dome of the church, built on top of the gate, can be seen from afar and makes it a prominent symbol of Kyiv.
Heddal Stave Church
+1
Monthly Tax
-
+10%
Levy Size
-
+10%
Holding Taxes
-
+10
Popular Opinion
-
+10%
Monthly Piety
-
+5%
Monthly Renown
-
+1
Number of Knights
-
+20%
Knight Effectiveness
Túnsberg
City Planning
Heddal Stave Church is the largest stave church in Norway and has a beautiful wooden interior. Legend says the church was built by a mountain troll in merely three days.
Danevirke
+2
Defender Advantage
Hedeby
- (Slesvig)
Always constructed
The Danevirke is an extensive earthwork fortification build to prevent incursions from the continent into Danish territories and has been expanded multiple times since its original construction.
Roman Walls of Lugo
-
+1
Monthly Tax
-
+1
Fort Level
-
+10%
Garrison Size
-
+1
Learning
-
+5%
Monthly Renown
-
+1
Learning
-
+5%
Monthly Renown
Lugo
Always constructed
Built by the Romans long ago, the great Walls of Lugo remain an impressive sight. Pilgrims pass their five gates on the road to Santiago de Compostela, making the journey even more profound.
Rock of Gibraltar
-
+1
Fort Level
-
+2
Defender Advantage
+10%
Monthly Development
-
+1
Stewardship
-
+20%
Diplomatic Range
Algeciras
Always constructed
The monolithic Rock of Gibraltar overlooks a narrow strait that is the gateway to the Mediterranean Sea. It was one of the Pillars of Hercules in antiquity, considered to mark the end of the known world. Looking at it now, you cannot help but wonder what lies beyond.
Aljafería
-
+4
Fort Level
-
+6
Defender Advantage
-
+500
Garrison Size
-
+5%
Holding Taxes
-
+0.5
Monthly Control
-
+1
Diplomacy per Level of Fame
-
+5%
Monthly Renown
Zaragoza
- (Saraquastah)
Hoardings
- Always constructed in 1066
A great palace-fortress built on the Saría plain, the Aljafería is a testament to the power and wealth of Zaragoza. Imposing and splendid in equal measure; it is both an intimidating fortification and a pinnacle of Iberian architecture.
Farum Brigantium
Tower of Hercules
+1
Monthly Tax
-
-25%
Embarkation Cost
-
+25%
Naval Speed
A Corunnã
Always constructed
This ancient lighthouse is said to have been based on its more famous sister in Alexandria. Having guided seafarers for untold centuries, it remains important to Galicia’s coastal trade. Some claim that you can glimpse Ireland’s green coast from the top of this lonely tower, but gazing out, you see only endless sea.
City Walls of Toledo
-
+2
Fort Level
-
+25%
Garrison Size
-
+30%
Hostile Raid Time
-
+10%
Holding Taxes
-
+5
Defender Advantage
-
+10%
Monthly Development
-
+0.2
Monthly Development
Toledo
- (Madīnat al-Mulūk)
Always constructed
Originally built by the Romans in days of old, these massive walls were significantly expanded under the reign of Wabma, king of the Visigoths. The early Arabic rulers widened them even further, creating a defensive system fit for the City of Kings.
Alcázar of Segovia
-
+4
Fort Level
-
+6
Defender Advantage
-
+500
Garrison Size
-
+5%
Holding Taxes
-
+0.5
Monthly Control
-
+1
Martial per Level of Fame
-
+5%
Monthly Renown
Segovia(Cuellar)
Hoardings
Rising like the bow of a ship from a rocky crag, this fortress is an awe-inspiring sight. As majestic as it is impenetrable, it is the greatest of all castles in the kingdom of castles — Castille.