Buildings

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This article may contain outdated information that is inaccurate for the current version of the game. It was last updated for 1.11.

Buildings represent the infrastructure and development of a province. Investing ducats into buildings can give steady returns over the decades and centuries to come.

Building slots[edit]

Starting with the Common Sense DLC each building now requires one free building slot. Some buildings can be upgraded as technology advances. These upgraded buildings don't require an additional slot. The amount of slots a province provides is mostly influenced by terrain and total development of the province:[1]

  • +1 for being a city
  • +2 if terrain is farmlands
  • +1 if terrain is grasslands
  • +1 if terrain is drylands
  • +0.1*Development.png total development of province, rounded down
  • -2 if non-core

Example: Paris

Total province development is 28Development.png, which gives (28 * 0.1 = 2.8 -> rounded down to 2) 2 additional building slots.
Paris = 1 (city) + 2 (farmlands) + 2 (total province development) = 5

The maximum amount of building slots a city can have is 16, although there are only 10 possible categories of buildings.[2]

Categories[edit]

In EU4 buildings are built in the provinces at the cost of ducats. There are three types of buildings:

Normal buildings[edit]

These represent common buildings that the player can construct in every province. Buildings are divided into seven categories: government, army, navy, production, trade, defense and taxation.

Each category contains various amounts of buildings. Most of the buildings have an advanced version, but some (for example University) take one slot and can't be replaced by something better. It's not necessary to build a basic building before constructing the more advanced version, although (as of 1.13), the cost of the basic building will be deduced from the cost of the advanced one.

Manufactories[edit]

Manufactories are proto-industrial buildings in that their unique function is the production of a specific class of trade good. For example, the weapons manufactory is only constructable on provinces that produce iron or copper.

Native buildings[edit]

Native American nations get a unique set of buildings that completely replace the usual buildings as long as they have a tribal government. All buildings can be built without technological requirements unlike normal buildings and their effects are different from the normal buildings. Any native buildings built except palisades will be lost when the government is reformed. Palisades are lost after the native country westernises.

Cost[edit]

All buildings cost time and ducats to build. This is subject to changes from modifiers and ideas. The ideas that reduce the cost of the building do not affect the build time.

Idea groups and policies that reduce building costs[edit]

Build cost.png Traditions Ideas Bonuses Policies
−25%

Portuguese idea 5: Royal Absolutism
−20%

Korean traditions Hausan idea 6: Sarkin Bayi
Incan idea 5: Mit'a System
Pueblo idea 2: Adobe Architecture
Client State ambitions
−15%

Armenian idea 2: Land Reclamation
Cherokee idea 1: Moundbuilders Legacy
Chickasaw idea 1: Moundbuilders Legacy
Creek idea 1: Moundbuilders Legacy
Finnish idea 4: Settle Middle Finland
Ladakh idea 4: Construction of Great Monasteries
Tverian idea 4: Tverian Architects
Orleanaise ambitions Aristocratic-Expansion: Manueline Architecture
−10%

Ajuuraan traditions
Chachapoyan traditions
Nizhny Novgorod traditions
Economic idea 2: Organized Construction
Anatolian idea 6: Anatolian Architecture
Chimu idea 3: Split Inheritance
Georgian idea 3: Restoration of Fortresses and Churches
Granada idea 5: Alhambra
Gutnish idea 1: Rebuild Visby
Mesoamerican idea 6: Pyramid Architecture
Mexican idea 1: Rebuilding Mexico
Polotskian idea 7: Forest of Europe
Silesian idea 3: German Settlers
Transylvanian idea 3: Transylvanian Saxons

Climate[edit]

Climate Build cost modifier
Temperate 0%
Tropical icon.png Tropical +15%
Arid icon.png Arid +15%
Arctic icon.png Arctic +50%

List of normal buildings[edit]

Category Type Normal buildings (tech required)
Government Administrative power.png Latin courthouse.png Courthouse (8) Latin town hall.png Town hall (22) Latin university.png University (17)
Local unrest.png-3 Local unrest

Gold Icon.png Cost:200
Time Icon.png Time:12 months

Replaces courthouse

Local unrest.png−5 Local unrest
Gold Icon.png Cost:400
Time Icon.png Time:12 months

Local development cost−20% Local development cost

Gold Icon.png Cost:300
Time Icon.png Time: 12 months

Army Military power.png Latin barracks.png Barracks (6) Latin training fields.png Training Fields (16) Latin regimental camp.png Regimental Camp (8) Latin conscription center.png Conscription center (22)
Local manpower modifier.png+50% Local manpower modifier

Gold Icon.png Cost:100
Time Icon.png Time:12 months

Replaces barracks

Local manpower modifier.png+100% Local manpower modifier
Gold Icon.png Cost:300
Time Icon.png Time:12 months

Land forcelimit.png+1 land force limit

Gold Icon.pngCost:200
Time Icon.pngTime:12 months

Replaces regimental camp

Land forcelimit.png+2 land force limit
Gold Icon.pngCost:400
Time Icon.pngTime:12 months

Navy Diplomatic power.png Latin dock.png Dock (8) Latin drydock.png Drydock (24) Latin shipyard.png Shipyard (6) Latin grand shipyard.png Grand Shipyard (19)
Naval forcelimit.png+2 Naval force limit

Gold Icon.pngCost:200
Time Icon.pngTime:12 months

Replaces dock

Naval forcelimit.png+4 Naval force limit
Gold Icon.pngCost:400
Time Icon.pngTime:12 months

Shipbuilding time.png-50% Local shipbuilding time

Local ship cost.png-10% Local ship cost
Local ship repair.png-25% Local ship repair
Gold Icon.pngCost:300
Time Icon.pngTime:12 months

Replaces shipyard

Shipbuilding time.png-50% Local shipbuilding time
Local ship cost.png-20% Local ship cost
Local ship repair.png-50% Local ship repair
Gold Icon.pngCost:300
Time Icon.pngTime:12 months

Production Administrative power.png Latin workshop.png Workshop (6) Latin counting house.png Counting house (24)
Local production efficiency.png+50% Local production efficiency

Gold Icon.png Cost:100
Time Icon.png Time:12 months

Replaces Workshop

Local production efficiency.png+100% Local production efficiency
Gold Icon.png Cost:400
Time Icon.png Time:12 months

Taxation Administrative power.png Latin temple.png Temple (4) Latin cathedral.png Cathedral (19)
Local tax modifier.png+40% Local tax modifier

Gold Icon.png Cost:100
Time Icon.png Time:12 months

Replaces temple

Local tax modifier.png+60% Local tax modifier
Local missionary strength.png+3% Local missionary strength
Gold Icon.png Cost:300
Time Icon.png Time:12 months

Trade Diplomatic power.png Latin marketplace.png Marketplace (4) Latin trade depot.png Trade Depot (17) Latin stock exchange.png Stock exchange (22)
Local trade power.png+50% Local trade power

Gold Icon.png Cost:100
Time Icon.png Time:12 months

Replaces marketplace

Local trade power.png+100% Local trade power
Gold Icon.png Cost:200
Time Icon.png Time:12 months

Replaces Trade depot

Local trade power.png+125% Local trade power
Gold Icon.png Cost:400
Time Icon.png Time:12 months

Defense Military power.png Latin fort01.png Castle (1) Latin fort02.png Bastion (14) Latin fort03.png Star Fort (19) Latin fort04.png Fortress (24)
Fort level.png+2 Fort level

Gold Icon.pngCost:200
Time Icon.pngTime:30 months
Gold Icon.pngMaintenance: 1/month (50% when Mothballed)

Replaces Castle

Fort level.png+4 Fort level
Gold Icon.pngCost:400
Time Icon.pngTime:30 months
Gold Icon.pngMaintenance: 2/month (50% when Mothballed)

Replaces Bastion

Fort level.png+6 Fort level
Gold Icon.pngCost:600
Time Icon.pngTime:30 months
Gold Icon.pngMaintenance: 3/month (50% when Mothballed)

Replaces Star Fort

Fort level.png+8 Fort level
Gold Icon.pngCost:800
Time Icon.pngTime:30 months
Gold Icon.pngMaintenance: 4/month (50% when Mothballed)

List of manufactories[edit]

All manufactories cost 500 Gold Icon.png ducats, take 60 months to build, and provide +1.00 Local goods produced goods produced.

Manufactory Type Tech Trade goods
Naval equipment.png Naval Equipment Manufactory Diplomatic power.png 11 Naval supplies.png Naval Supplies, Fish.png Fish, Salt.png Salt, Tropical Wood.png Tropical Wood
Weapons manufactory.png Weapons Manufactory Military power.png 11 Copper.png Copper, Iron.png Iron
Textile manufactory.png Textile Manufactory Administrative power.png 11 Wool.png Wool, Cloth.png Cloth, Silk.png Silk, Dyes.png Dyes
Plantations.png Plantations Administrative power.png 14 Coffee.png Coffee, Sugar.png Sugar, Cotton.png Cotton, Tobacco.png Tobacco, Cocoa.png Cocoa, Grain.png Grain
Trade Company Trade Company Diplomatic power.png 14 Ivory.png Ivory, Tea.png Tea, Chinaware.png Chinaware, Slaves.png Slaves, Spices.png Spices, Fur.png Fur, Wine.png Wine

List of native buildings[edit]

All native buildings cost 50 Gold Icon.png ducats and take 12 months to build. You can only build one of each unique building per nation.

Normal native buildings[edit]

Building Type Effect
Native irrigation.png Irrigation Administrative power.png Local tax modifier.png+50% Local tax modifier
Native storehouse.png Storehouse Administrative power.png Local production efficiency.png+50% Local production efficiency
Native great trail.png Great Trail Diplomatic power.png Local manpower modifier.png+50% Local manpower modifier
Native three sisters field.png Three-Sisters Field Diplomatic power.png Local goods produced modifier+50% Local goods produced modifier
Native earthwork.png Earthwork Military power.png Local defensiveness.png+25% Local defensiveness
Native palisade.png Palisades Military power.png Fort level.png+1 Fort Level

Unique native buildings[edit]

Building Type Effect
Native ceremonial fire pit.png Ceremonial Fire Pit Administrative power.png Advisor cost.png-50% Advisor cost
Native longhouse.png Longhouse Administrative power.png Tax income.png+1 tax income
Native sweat lodge.png Sweat Lodge Diplomatic power.png Diplomatic reputation.png+1 Diplomatic reputation
Native fortified house.png Fortified House Military power.png Land forcelimit.png+10 Land force limit

Building strategy[edit]

Considering that buildings come with monetary cost, they should be carefully considered in terms of return of the investment. Thus said, the first step is to make sure when not to invest in a building type:

  • Diplomatic buildings when state has the most trading power in a certain node
  • Administrative buildings if the country has reached economic stability in its monthly income
  • Military buildings and fortifications while a large manpower pool is maintained and no rival countries are of similar power

General advice[edit]

  • A significant number of the buildings that can be built to the effort of increasing the amount of taxes, trade power, trade value and manpower in percentage values. As such, consider prioritising rich and strategic provinces, where they will likely benefit the most from such bonuses.
  • Fortification of all the provinces might not be the best choice. One should always assess pros and cons before making any decisions.
  • Consider taking Economic ideas if you wish to reduce the cost of building.
  • The time needed to generate a profit should be considerated; some provinces may be too poor to ever generate a profit, depending on where these are in the game.
  • The player should always keep in mind that he should only invest his money in buildings if it isn't needed anywhere else. When having high inflation or running deficits, the ruler should rather try to keep his money in it's own place than investing it in buildings.
  • When playing as native tribe and planning to migrate , it is not advisable to build a lot of buildings, since they will get destroyed when migrating to another province.
  • Colonial provinces that haven't yet become a colonial nation do not retain any buildings when they form a colonial nation
  • It is also important to keep in mind that the building will not be as efficient if the autonomy in the province is high - this will of course decrease over time, but it might be better to build buildings in provinces that already have low autonomy.
Province mechanics
Management CapitalCoreCultureReligionRebellionAutonomyList of provinces
Economy DevelopmentTaxProductionManpowerBuildings
Economy
Concepts BuildingsColonizationTradeTrade goodsTrade nodesTrade companyTariffsDevelopmentTaxProductionOverextensionWar exhaustion
  1. specified in terrain.txt and 00_static.modifiers.txt
  2. specified in defines.lua