Buildings

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This article is for the PC version of Stellaris only.

Planetary management

Buildings

Buildings

Common buildings

A building represents a collection of facilities scattered across a world that create Jobs that generate different kinds of resources that are not suitable to large-scale resource gathering. If a world's population is completely wiped out (either by resettlement or warfare), all existing buildings are removed.

Building slots[]

Buildings are constructed in a colony's building slots. A colony can have up to 12 building slots, although most of them are initially unavailable and the first one is dedicated to the colony's capital building. Additional building slots are unlocked by upgrading the capital building, constructing certain districts, researching technologies, and some civics. Ecumenopolises, Ring Worlds, Hive Worlds, and Machine Worlds start with all building slots unlocked.

Source (for planets and habitats)	Building slots	Stackable
Adaptive Ecology tradition	+1
Ceramo-Metal Infrastructure	+1
Durasteel Infrastructure	+1
Functional Architecture civic Constructobot civic	+1
Imperial capital	+11

Source (for planets only)	Building slots	Stackable
Tier I capital	+1
Tier II capital	+2
Tier III capital	+3
Tier IV capital	+4
Planetary housing district (each)	+1
Agrarian Idyll civic: Agriculture districts (each)	+0.25
Subterranean origin: Mining district (each)	+0.34
Masterful Crafters / Mastercraft Inc. civic: Industrial districts (each)	+0.34
Orbital Assembly Complex on planet: Habitation Modules (each)	+0.5 (max +2 total)
Resort Administration Governor's Palace	+5
Resort Capital-Complex Governor's Estates	+11

Source (for habitats only)	Building slots	Stackable
Habitat Administration	+1
Habitat Central Control	+2
Habitat System Control	+3
Housing orbitals with Tier I capital (each)	+0.5
Housing orbitals with Tier II capital (each)	+0.75
Housing orbitals with Tier III capital (each)	+1
Habitation districts (each)	+0.5
Industrial districts (each)	+0.25
Void Dwellers or Voidborne: Habitat resource district (each)	+0.25
Knights of the Toxic God: Order's Demesne (each)	+0.5 (+1 with )

Planetary build speed[]

The planetary build speed modifier reduces the time it takes to construct all buildings. This modifier can be very useful, as it also affects building upgrades, and higher level buildings often take longer to build. Note that this modifier actually increases the rate of construction, thus a 100% increase in build speed is equal to a 50% reduction in build time.

Source	Planetary build speed
Architectural Renaissance edict	+100%
Construction Templates technology	+50%
Nanite Entity governor trait	+40%
Standard Construction Templates tradition	+25%
Assembly Patterns technology	+25%
Assembly Algorithms technology (repeatable 5 times)	+10%
Master's Teachings: The Greater Good edict	+10%
Industrial Development resolution 3	+10%
Secrets of the First League empire modifier	+10%
Architectural Sense ruler trait	+10%
Architectural Interest governor trait	+10%
Brain Slug Host governor trait	+10%
Ecological Protection resolution 2	−5%
Subterranean origin	−10%
Ecological Protection resolution 3	−15%

Capital buildings[]

Main article: Planet capital

The capital always occupies the first building slot and provides some of the basic housing, amenities, defense armies, jobs that reduce crime, as well as other jobs which vary depending on empire authority and civics. Upgrading the capital is one of the ways of unlocking additional building slots. Capital buildings cannot be demolished, downgraded or disabled, and are automatically converted to the appropriate type if traded, ceded, or conquered by another empire with a different authority or if the planet designation is changed.

Unique buildings[]

Main article: Unique buildings

Unique buildings are buildings that can only be built a limited number of times per planet or empire, and typically contain effects beyond the creation of jobs. Many of them require the capital to have reached a certain level.

Regular buildings[]

Each regular building has up to 3 tiers, which determine its number of jobs, upkeep, construction time and cost. Tier II and III buildings require a capital of the same tier or above as well as a certain strategic resource for construction and upkeep.

If a world is conquered by an empire that uses a different set of buildings for the same primary resource, the existing buildings are converted into new ones of the same tier. Tiered buildings cannot be constructed on Thrall-World Thrall-Worlds.

Tier	Upkeep	Cost
I	−2	360 400
II	−5 −1	480 600 50
III	−8 −2	600 800 100

Tier I	Tier II (Requires Tier II capital})	Tier III (Requires Tier III capital})	Effects per tier	Strategic resource	Properties
Research
Research Labs	Research Complexes Exotic Materials Labs	Advanced Research Complexes Multi-Dimensional Studies	+2 Researchers Researchers Brain Drones Calculators	Exotic Gases	Resort World Resort World Gestation World
Unity
Administrative Offices	Administrative Park Colonial Bureaucracy	Administrative Complex Galactic Bureaucracy +1 High Priest	+2 Administrators Bureaucrats Managers Stewards	Rare Crystals	Individualist Spiritualist Holy Covenant Level 5
Temple	Holotemple Holographic Rituals	Sacred Nexus Consecration Fields +1 High Priest	+2 Priests Priests Prosperity Preachers Haruspexes +5% Spiritualist ethic attraction	Rare Crystals	Either: Spiritualist Holy Covenant Level 5
Sacrificial Temple	Grim Holotemple Holographic Rituals Additional upkeep: −1	Temple of Grand Sacrifice Consecration Fields +1 High Priest Additional upkeep: −1	+1 Death Priest +1 Mortal Initiate +5% Spiritualist ethic attraction	Exotic Gases	Death Cult
Synaptic Nodes	Synaptic Clusters Clustered Synapses	Confluence of Thought Confluence of Thought	+2 Synapse Drones +2 Housing (unchanged per tier) +1 Maintenance Drone (unchanged per tier)	Exotic Gases	Hive Mind
Uplink Node	Network Junction Colonial Bureaucracy	System Conflux Galactic Bureaucracy	+2 Coordinators	Rare Crystals	Machine Intelligence Rogue Servitor
Organic Sanctuary	Organic Paradise Idyllic Architecture		+10 Bio-Trophies	Exotic Gases	Rogue Servitor Converts to Housing buildings instead.
Amenities
Holo-Theatres	Hyper-Entertainment Forums Hyper-Entertainment Forum		+2 Entertainers Warrior Culture: ➡ Duelists	Exotic Gases	Gestalt Consciousness
Trade Value
Commercial Zones	Commerce Megaplexes Interstellar Economics		+2 Clerks +1 Trader +1 Trader	Rare Crystals	Gestalt Consciousness
Food
Hydroponics Farms			+3 Farmers Farmers Agri-Drones Anglers and Wet world: 3 ➡ +2 Anglers		Hydroponics Farming technology Machine World Resort World Resort World
Housing (Tier II upkeep: −3 −1)
Luxury Residences	Paradise Dome Idyllic Architecture		+3 Housing +5 Amenities +1 Housing (unchanged per tier)	Rare Crystals	Gestalt Consciousness Shared Burdens Habitat unless: Void Dwellers or Voidborne
Communal Housing	Utopian Communal Housing Idyllic Architecture		+5 Housing +3 Amenities +1 Housing (unchanged per tier)	Rare Crystals	Shared Burdens Habitat unless: Void Dwellers or Voidborne
Hive Warren	Expanded Warren Anti-Gravity Engineering		+3 Housing +5 Amenities	Rare Crystals	Hive Mind
Drone Storage	Upgraded Drone Storage Micro-Replicators		+4 Housing +3 Amenities	Rare Crystals	Machine Intelligence

Military buildings[]

Military buildings produce defense armies and are vital for the protection of a world. Once constructed they are always placed at the top of the buildings order to be the last buildings destroyed by orbital bombardment. Fortresses also contain an FTL inhibitor if the FTL Inhibition technology has been researched. Upgrading Strongholds into Fortresses requires the Global Defense Grid technology, as well as a Tier II capital or above.

	Building	FTL Inhibitor	Regular jobs	Upkeep	Cost	Description
	Stronghold		+2 Soldiers Soldiers Warrior Drones	−1	240 400	A planetary stronghold housing a substantial garrison force to protect the world from invasion and rebellion.
	Fortress		+4 Soldiers Soldiers Warrior Drones	−1 −1	360 600 50	A massive fortress complex with an expanded garrison and training facilities for soldiers.

Law enforcement buildings[]

Law enforcement buildings produce defense armies and Unity and, most importantly, reduce Crime or Deviancy.

Building	Jobs	Upkeep	Cost	Requirements	Description
Precinct Houses	+2 Enforcer	−2	360 400	Gestalt Consciousness Thrall-World Thrall-World	Monuments to law and order. Enforcers are based here.
Hall of Judgment	+5 Enforcer	−1 −1	480 600 50	Colonial Centralization technology	A massive complex dedicated to courts and law enforcement.
Sentinel Posts	+2 Hunter-Seeker Drone	−2	360 200	Gestalt Consciousness	These are the outposts from which Patrol Drones scan the Consciousness for signs of deviancy and malfunction.

Refinery buildings[]

Refinery buildings produce strategic resources. They are less efficient than the extraction buildings that require planetary features, but refineries can be built on planets without those features. They cannot be built on Resort Worlds, Thrall-Worlds, or Gestation Worlds.

Building	Jobs	Upkeep	Cost	Requirements	Description
Chemical Plants	+1 Chemist Chemist Chem-Drone	−3	480 500	Volatile Material Plants technology	The unpredictable and sometimes unstable Volatile Motes are produced here artificially. No open flames are permitted within a five kilometer radius of the plants.
Exotic Gas Refineries	+1 Gas Refiner Gas Refiner Refinery Drone	−3	480 500	Exotic Gas Refining technology	These advanced refineries work day and night to produce exotic gases.
Synthetic Crystal Plants	+1 Translucer Translucer Lensing Drone	−3	480 500	Rare Crystal Manufacturing technology	Nearly identical to the real thing, the crystals produced here are of the highest quality.
Kha'lanka Crystal Plant	+3 Translucers Translucers Lensing Drones	−3	800 1000	Whispers in the Stone archaeology site	The discovery of new crystal manufacturing techniques, far below the surface in the city of the Kha'lanka lithoids, has effectivized artificial crystal manufacturing through oxidation of rapidly growing silicon-based cell clusters.

Nanotech buildings[]

Nanotech buildings are unlocked via the Nanotech tradition tree. They cannot be built on Resort Worlds or Thrall-Worlds.

Building	Effects	Upkeep	Cost	Requirements	Description
Nanite Research Facility	+3 Nanotech Researcher	−8 −1	480 800 50	Nanotech tradition tree	Conducting research at a nanoscopic scale brings a whole new perspective on the universe.
Nanite Research Complex	+6 Nanotech Researcher	−10 −2	600 2000 100	Aggregation Systems tradition	How peculiar it is that the infinitely small and the infinitely big look so much alike.
Nanotech Cauldron	+15 Alloys	−30 −3	480 800	Molecular Reconfiguration tradition	Operating at a molecular level, the swarm can easily reconfigure mineral structures into sturdy alloy lattices.

Other buildings[]

Building	Effects	Upkeep	Cost	Requirements	Description
Resource Silos	+5000 Resource Storage Capacity +5000 with Construction Templates +1 Clerk Clerk Maintenance Drone	−1	180 200	Resort World Resort World Thrall-World Thrall-World Gestation World	Massive resource silos and storage facilities where large quantities of resources can be safely kept.
Nanite Transmuter	+2 Exotic Gases +2 Rare Crystals +2 Volatile Motes	−5 −1	600 1000	Nanite Transmutation technology Resort World Resort World Thrall-World Thrall-World	This factory mass-produces a variety of rare resources using extremely advanced nanites. A Nanite Deficit will halt production.
Slave Huts	+8 Housing	−1	240 200	Thrall-World Thrall-World	Crude dwellings for the planet's enslaved population.
Overseer Residences	+2 Slave Overseer job +2 Housing	−1	240 200	Thrall-World Thrall-World	These homes are reserved for the relatively privileged slave overseers.

Fallen empire buildings[]

Fallen empire buildings can only be constructed by Fallen Empires. They are the most effective buildings in the game and unlike other buildings they are cheaper to upgrade than to build and their upkeep remains unchanged. They are not converted if the world is conquered by an empire lacking the technology to build them and can also be repaired if ruined. There are two ways for other empires to gain access to fallen empire buildings. They cannot be built on Thrall-World Thrall-Worlds, and most cannot be built on Resort World Resort Worlds.

If Ancient Relics is enabled, using the Reverse-Engineer Arcane Technology artifact action has a 5.9% chance (doubled with Archaeo-Engineers) to allow the empire to build a certain fallen empire building. Only one building can be constructed. If they are ruined they can be repaired, but if they are demolished they cannot be rebuilt.
If The Machine Age is enabled, empires with the Cosmogenesis ascension perk can unlock the technology to build or upgrade fallen empire buildings once they reach the required crisis level.

Tier I							Upkeep
	Building	Produces	Cost	Building	Produces	Cost	Upkeep
Reverse-engineerable
	Sky Dome	+20 Housing +20 Amenities +20 Bio-Trophies if Rogue Servitor	480 600	Empyrean Dome	+50 Housing +50 Amenities +50 Bio-Trophies if Rogue Servitor −5% Pop Upkeep	480 600	−10 −2
	Class-3 Singularity	+75 Energy +6 Technicians Technicians Tech-Drones	480 800 100	Class-4 Singularity	+200 Energy +6 Technicians Technicians Tech-Drones	480 800	−5 −1
	Nourishment Complex	+40 Food +6 Farmers Farmers Agri-Drones Anglers (if Wet world)	480 800	Nourishment Center	+150 Food +6 Farmers Farmers Agri-Drones Anglers (if Wet world) +5% Habitability	480 800	−15 −3
	Affluence Emporium	+6 Artisans Artisans Artisan Drones Artificers	480 800 100	Affluence Center	+6 Artisans Artisans Artisan Drones Artificers +10 Amenities +35 Consumer Goods	480 800	−15 −3 −2
	Hyper-Forge	+6 Metallurgists Metallurgists Foundry Drones Fabricators Catalytic Technicians Catalytic Drones	480 800 100	Auto-Forge	+6 Metallurgists Metallurgists Foundry Drones Fabricators Catalytic Technicians Catalytic Drones −5% Building and District Upkeep +25 Alloys	480 800	−30 −2
	Dimensional Replicator	+3 Exotic Gases +3 Rare Crystals +3 Volatile Motes	480 800	Dimensional Fabricator	+5 Exotic Gases +5 Rare Crystals +5 Volatile Motes +2 Dark Matter +2 Living Metal +2 Zro +2 Nanites	480 800	−30 −5
Non-reverse-engineerable
	Quantum Drilling Plant	+50 Minerals +6 Miners Miners Mining Drones Scrap Miners (if Shattered Ring) Scrap Miner Drones (if Shattered Ring}	480 800 100	Quantum Drilling Hub	+150 Minerals +6 Miners Miners Mining Drones Scrap Miners (if Shattered Ring) Scrap Miner Drones (if Shattered Ring}	480 800	−30 −5 −2
	Justice Complex	+6 Enforcer jobs	480 800 100	Ziggurat of Justice	+6 Enforcer jobs +10 Edict Fund −40 Crime	480 800	−15 −3 −2
	Shrinkspace Depot	+50000 Resource Storage Capacity	480 800	Extra-Dimensional Depot	+100000 Resource Storage Capacity	480 800	−15 −3
	Aspis Bastion	+6 Soldiers Soldiers Warrior Drones	480 600 100	Aspis Complex	Adds an FTL Inhibitor +6 Soldiers Soldiers Warrior Drones −10% Orbital Bombardment Damage	480 600	−15 −3 −2
	Galactic Commerce Hub	+4 Merchant jobs	480 800 100	Interstellar Commerce Nexus	+6 Merchant jobs +1% Trade value empirewide	480 800	−15 −3 −2
	Omnivident Administration	+6 Administrators Bureaucrats Managers Stewards	480 800 100	Omniscient Administration	+12 Administrators Bureaucrats Managers Stewards +20 Unity −10% Pop Housing Usage	480 800	−15 −3 −2
	Celestial Sanctum	+6 Priests Priests Prosperity Preachers Haruspexes	480 800 100	Celestial Cathedral	+12 Priests Priests Prosperity Preachers Haruspexes +20 Unity −10% Pop Housing Usage	480 800	−15 −3 −2
	Ephaptic Cluster	+6 Synapse Drones	480 800 100	Ephaptic Axon	+12 Synapse Drones +20 Unity −10% Pop Housing Usage	480 800	−15 −3 −2
	Fractal Coordination Point	+6 Coordinators	480 800 100	Quantic Coordination Point	+12 Coordinators +20 Unity −10% Pop Housing Usage	480 800	−15 −3 −2
	Molecular-Revitalization Institute	+1 Years Leader Lifespan +4 Medical Worker +2 Spawning Drone +2 Offspring Drone Destroyed if Machine Intelligence	480 800 100	Bioregeneration Institute	+2 Years Leader Lifespan +6 Medical Worker +3 Spawning Drone +3 Offspring Drone Destroyed if Machine Intelligence	480 800	−15 −3 −2
	Robot Manufacturing Nexus	+2 Roboticists Roboticists Replicators Destroyed if robots are outlawed	480 800 100	Robot Quantum Production Hub	+5 Roboticists Roboticists Replicators Destroyed if robots are outlawed	480 800	−50 −5 −1.5
	Virtual Bliss Plaza	+2 Entertainer jobs	480 800 100	Omni-Bliss Nexus	+6 Entertainer jobs +100 Amenities	480 800	−15 −3 −2
	Quantum Innovation Nexus	+1 Science Director +4 Researchers +6 Brain Drones +6 Calculators	480 800 100	Transcendentral Innovation Department	+1 Science Director +4 Researchers +6 Brain Drones +6 Calculators +20 Research	480 800	−30 −5 −2
Non-buildable
Can only be found on the capital of the Ancient Caretakers				Ancient Cryo-Chamber	+1 Trait point for organic species +1 Trait picks for organic species +10% Biology research speed		−50 −1
Can only be found on the capital of the Holy Guardians				Phased Empyrean Shrine	+3 Augur of the Shroud if fallen empire +6 Telepaths with Psi Corps +25% Administrator output without Psi Corps		−10 −3 −2
Can only be found on one of the systems of the Keepers of Knowledge				Master Archive	+10 Archivists if fallen empire +6 Science Directors +12 Brain Drones +12 Calculators +100 Research		−30 −5 −1

Pre-FTL buildings[]

Pre-FTL buildings can be found on planets owned by pre-FTL civilizations. They have negligible output and no upkeep and are removed or converted if the civilization is conquered or discovers FTL.

Building	Produces	Jobs	Requirements	Description
Primitive Dwellings Early Colony	+6 Housing		Bronze Age – Renaissance Age	These small buildings provide a minimal amount of shelter, but they keep out the worst of the elements. Starting to optimize the space available, these hexagon shaped buildings can house what could moderately be called a colony.
Urban Dwellings Drone Storage	+24 Housing		Steam Age – Early Space Age	Cramped and often polluted jungles of concrete. A utilitarian solution for housing drones when they are undergoing their rest cycle. There are separate entrances and exits to maximize the hive's recharge process.
Primitive Factory		+2 Labourer/Factory Drone	Steam Age – Early Space Age	Primitive, inefficient factories spewing pollution while producing goods.
Primitive Mine		+2 Miner/Mining Drone	Steam Age – Early Space Age	Primitive mining tunnels that snake through the ground.
Primitive Farms		+10 Farmer/Agri-Drone	Steam Age – Early Space Age Lithoid	Primitive farmsteads working the soil for meager returns.
Primitive Power Plant		+2 Technician/Tech-Drone	Industrial Age – Early Space Age	A primitive and somewhat unreliable power plant that relies on coal or early atomic power.
Great Pyramid	+2 Food +2 Society Research		Observation event	A pyramid constructed by the local population to appease a deity descended from the sky.
Radio Telescope Array	Increased chance of gaining Awareness	+2 Researcher/Brain Drone	Observation event	An array of radio telescopes in pursuit of discovering intelligent alien life.
Gaia Seeders		+10 Content Terraformer	Habinte Unified Worlds	Perfected atmospheric controls maintaining this planets pristine status.
Grand Sapling	+2 Food from Farmers	+5 Content Terraformer	Habinte Unified Worlds	A titanic sapling, the result of centuries of floral research and manipulation, capable of feeding millions.
Hanging Cities	+20 Housing +5 Building Slots	+5 Content Terraformer	Habinte Unified Worlds	Cities covered in grand forests, bringing the inhabitants closer to nature.
Nature Preserve Lodge		+5 Content Terraformer	Habinte Unified Worlds	A retreat to enjoy this planet's beauty.