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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This article may contain outdated information that is inaccurate for the current version of the game.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 1.6.

A building is, by definition, a man-made structure used to support and shelter any kind of activity. There is, consequently, a wide variety of building types, each focused on performing a specific function.

Categories[edit]

In EU4 these buildings are built at the province level with the use of monarch points and ducats. They are categorized into three types.

Normal buildings[edit]

These are the buildings that the player will construct the most. They not only improve a province in six different sections but they can be built everywhere. Said sections are: government, army, navy, production, trade and fort.

These sections can be further divided into four basic buildings and two special buildings each. While the first kind can be built in conjunction with another section (e.g. province can have both temple and constable) the latter can only be built if there aren't any other kind of special building in said province (e.g. province can have College and Cathedral but not College and Mint). A line on the menu in game denotes the separation between the special, later buildings and the earlier ones.

Manufactories[edit]

Manufactories are proto-industrial buildings in that their unique function is the production of a specific good. One example is the farm estate, only constructable on grain-producing provinces. Note that once it is built, it cannot be dismantled.

Unique buildings[edit]

These are unique because any given nation can only have one of them. Similarly to Basic buildings, they can be constructed in the same province. Therefore, if all prerequisites are met and if the player is so inclined, then all unique buildings can be built in one place.

Cost[edit]

All buildings cost 10 Monarch Power, some time and some amount of money (ducats) to build. This is unless modifiers, ideas or otherwise change it. The ideas that reduce the cost of the building do not affect the build time or the Monarch Power cost, however.

Idea groups and policies that reduce building costs:

Build cost.png Traditions Ideas Bonuses Policies
−25%

Portuguese Ideas 5: Royal Absolutism
−20%

Korean Traditions Economic Ideas 2: Organized Construction
Pueblo Ideas 2: Adobe Architecture
−15%

Cherokee Ideas 1: Moundbuilders Legacy
Chickasaw Ideas 1: Moundbuilders Legacy
Creek Ideas 1: Moundbuilders Legacy
Aristocratic-Expansion: Manueline Architecture
Economic-Expansion: Revenue Farming
−10%

Anatolian Beyliks Ideas 6: Anatolian Architecture
Granada Ideas 5: Alhambra

There is also one idea which reduces the building power cost:

Build power cost.png Traditions Ideas Bonuses Policies
−20%

Quantity Ideas 6: Forced Labor

Normal and Special[edit]

Category Type Normal buildings (tech required) Special buildings
Gold Icon.png Cost / Time Icon.png Time (months) 50/12 75/12 100/12 150/12 250/24 500/24
Government Administrative power.png Latin temple.png Temple (5) Latin courthouse.png Courthouse (8) Latin spy agency.png Spy Agency (11) Latin town hall.png Town Hall (14) Latin college.png College (16) Latin cathedral.png Cathedral (18)
Tax income.png+1 Tax income Local revolt risk.png−1 Local revolt risk

Local tax modifier.png+10% Local tax modifier

Local tax modifier.png+20% Local tax modifier

Local spy defence.png+25% Local spy defense

Local tax modifier.png+25% Local tax modifier

Local defensiveness.png+10% Local defensiveness

Local revolt risk.png−1 Local revolt risk

Local tax modifier.png+50% Local tax modifier
Local spy defence.png+25% Local spy defense

Tax income.png+3 Tax income

Local revolt risk.png−1 Local revolt risk
Local missionary strength.png+3% Local missionary strength

Army Military power.png Latin armory.png Armory (4) Latin training fields.png Training Fields (8) Latin barracks.png Barracks (11) Latin regimental camp.png Regimental Camp (13) Latin arsenal.png Arsenal (16) Latin conscription center.png Conscription Center (18)
Local manpower modifier.png+25 Manpower increase

Regiment recruit speed.png−5% Local recruitment time

Local manpower modifier.png+25 Manpower increase

Regiment recruit speed.png−5% Local recruitment time

Local manpower modifier.png+25 Manpower increase

Local manpower modifier.png+10% Local manpower modifier

Local manpower modifier.png+20% Local manpower modifier Local manpower modifier.png+50 Manpower increase

Land forcelimit.png+2 Land force limit
Regiment recruit speed.png−25% Local recruitment time

Local manpower modifier.png+50 Manpower increase

Local manpower modifier.png+50% Local manpower modifier
Land forcelimit.png+2 Land force limit

Navy Diplomatic power.png Latin dock.png Dock (4) Latin drydock.png Drydock (8) Latin shipyard.png Shipyard (11) Latin grand shipyard.png Grand Shipyard (13) Latin naval arsenal.png Naval Arsenal (16) Latin naval base.png Naval Base (18)
Local trade power.png+0.33 Local trade power

Local ship repair.png+25% Local ship repair

Shipbuilding time.png−10% Local shipbuilding time

Local ship repair.png+10% Local ship repair

Naval forcelimit.png+1 Naval force limit Shipbuilding time.png−10% Local shipbuilding time

Local ship cost.png-10% Local ship cost

Naval forcelimit.png+2 Naval force limit

Shipbuilding time.png−10% Local shipbuilding time

Naval forcelimit.png+2 Naval force limit

Shipbuilding time.png−10% Local shipbuilding time
Local ship repair.png+50% Local ship repair

Production Administrative power.png Latin constable.png Constable (5) Latin workshop.png Workshop (8) Latin counting house.png Counting House (11) Latin treasury.png Treasury (14) Latin mint.png Mint (16) Latin stock exchange.png Stock Exchange (18)
Local production efficiency.png+20% Local production efficiency Goods produced nationally.png+0.2 Goods produced Inflation reduction.png+10% Yearly inflation reduction Local regiment cost.png-20% Local regiment cost Local production efficiency.png+50% Local production efficiency Goods produced nationally.png+0.5 Goods produced

Inflation reduction.png+10% Yearly inflation reduction

Trade Diplomatic power.png Latin marketplace.png Marketplace (4) Latin trade depot.png Trade Depot (8) Latin canal.png Canal (11) Latin road network.png Road Network (13) Latin post office.png Post Office (16) Latin customs house.png Customs House (18)
Local trade power.png+2 Local trade power Province trade power modifier.png+25% Local trade power modifier

Trade value.png+1 Trade value

Local trade power.png+1 Local trade power

Trade value modifier.png+25% Trade value modifier

Province trade power modifier.png+25% Local trade power modifier

Local movement speed.png+10% Local movement speed

Local trade power.png+3 Local trade power

Province trade power modifier.png+50% Local trade power modifier

Local trade power.png+10 Local trade power

Trade value.png+2 Trade value

Fort Military power.png Latin fort02.png Earth Rampart (3) Latin fort03.png Star Fort (9) Latin fort04.png Tenaille (14) Latin fort05.png Star Bastion (20) Latin fort06.png Redoubt (24) Latin fort07.png Fortress (29)
Local missionary strength.png+0.1% Local missionary strength

Supply limit.png+0.5 Supply limit
Fort level.png+1 Fort level

Local missionary strength.png+0.1% Local missionary strength

Supply limit.png+0.5 Supply limit
Fort level.png+1 Fort level

Local missionary strength.png+0.1% Local missionary strength

Supply limit.png+0.5 Supply limit
Fort level.png+1 Fort level

Local missionary strength.png+0.1% Local missionary strength

Supply limit.png+0.5 Supply limit
Fort level.png+1 Fort level

Local missionary strength.png+0.1% Local missionary strength

Hostile attrition.png+1 Attrition for enemies
Fort level.png+2 Fort level

Local missionary strength.png+0.1% Local missionary strength

Hostile attrition.png+2 Attrition for enemies
Fort level.png+2 Fort level

Note: The icons show the buildings in the western style.

Manufactories[edit]

All manufactories cost 500 Gold Icon.png ducats, take 60 months to build, and provide Goods produced nationally.png+1 goods produced.

Manufactory Type Tech Trade goods
Farm estate.png Farm Estate Administrative power.png 6 Grain.png Grain
Weapons manufactory.png Weapons Manufactory Military power.png 11 Copper.png Copper, Iron.png Iron
Naval equipment.png Naval Equipment Manufactory Diplomatic power.png 12 Naval supplies.png Naval Supplies, Fish.png Fish, Salt.png Salt
Trade company.png Trade Company Diplomatic power.png 12 Ivory.png Ivory, Tea.png Tea, Chinaware.png Chinaware, Slaves.png Slaves, Spices.png Spices, Fur.png Fur
Plantations.png Plantations Administrative power.png 13 Coffee.png Coffee, Cotton.png Cotton, Sugar.png Sugar, Tobacco.png Tobacco, Cocoa.png Cocoa
Textile manufactory.png Textile Manufactory Administrative power.png 15 Wool.png Wool, Cloth.png Cloth
Refinery.png Refinery Diplomatic power.png 20 Wine.png Wine, Sugar.png Sugar

Unique[edit]

All unique buildings cost 1000 Gold Icon.png ducats and take 12 months to build, except for the March which costs only 500 Gold Icon.png ducats.

Building Type Tech Province requirements Effect
Latin embassy.png Embassy Diplomatic power.png 6 Diplomat.png+1 Diplomat, Enemy core creation.png+10% Hostile core-creation cost
Latin march.png March Military power.png 8 Is a core.
Borders another nation.
Dismantled if reqs. not met.
Costs only 500 ducats. Local manpower modifier.png+500 Manpower increase, Hostile attrition.png+1 Attrition for enemies, Local defensiveness.png+200% Local defensiveness
Latin fine arts academy.png Fine Arts Academy Administrative power.png 12 Stability cost modifier.png−5% Stability cost modifier
Latin university.png University Administrative power.png 17 Technology cost.png−5% Technology cost
Latin glorious monument.png Glorious Monument Administrative power.png 19 Prestige.png+1 Yearly Prestige
Latin admiralty.png Admiralty Diplomatic power.png 19 Has a port. Navy tradition.png+0.5 Yearly navy tradition, Free leader pool.png+1 Leader(s) without upkeep
Latin war college.png War College Military power.png 19 Army tradition.png+0.5 Yearly army tradition, Free leader pool.png+1 Leader(s) without upkeep
Latin royal palace.png Royal Palace Diplomatic power.png 20 Is capital.
Government is a monarchy.
Icon legitimacy monarchy.png+0.1 Yearly Legitimacy
Latin grain depot.png Grain Depot Administrative power.png 24 Is a core.
Produces Grain.png Grain.
Land forcelimit.png+10% Land forcelimit modifier, Land maintenance modifier.png−10% Land maintenance modifier
Latin tax assessor.png Tax Assessor Administrative power.png 27 Is capital.
Tax Base Icon.png base tax ≥ 10
Inflation reduction.png+0.05 Yearly inflation reduction

Building strategy[edit]

Considering that buildings come with administrative, diplomatic or military power and 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]

  • Given that most of the effects are cumulative and depend on base tax, one should consider prioritizing the most valuable provinces in terms of buildings construction.
  • Trade-based provinces follow a rule similar to the previous one, where construction of diplomatic buildings comes with a great profit the earlier started.
  • Fortification of all the provinces might not be the best choice. One should always assess pros and cons before making any decisions.
  • The time needed to generate a profit should be a consideration; some may be too poor to ever generate a profit, depending on where you are in the game.
  • As of 1.7 it is now possible for Portugal to get a combined -75% reduction to Build cost and -20% to Monarch point cost for buildings through Portugal's national idea (-25%), an economic idea (-20%), along with both expansion build cost policies (both -15%) and, a Quantity idea for Monarch point cost (-20%). This allows for some insanely cheap buildings.
  • You should always keep in mind that you should only invest your monarch points in buildings if they aren't needed anywhere else. If you are lacking in technology and/or ideas, you should rather try to keep up there than invest in buildings.
Province mechanics
Management
TaxProductionTariffsBuildings
Economy
Concepts