Stellaris Add District Slots: Step-by-Step Guide
Stellaris players often run out of district slots when expanding across multiple planets. Adding new districts efficiently lets empires grow without hitting the administrative cap. This guide shows how to increase available slots while staying within the game’s 2026 mechanics.
Unlocking Extra District Slots
Research the Improved Administrative Efficiency technology first. Each level grants two additional district slots empire-wide. Follow up with the Galactic Administration tech for another three slots. Prioritize these research options early in any playthrough.
- Build the Administrative Park building on your capital planet
- Assign a Governor with the Industrialist trait for a 10% bonus
- Sign the Expansion Pact resolution in the Galactic Community
Planet Specialization Strategy
Reserve one planet as an administrative hub. Fill remaining slots with housing and amenities so pops remain productive. On resource worlds, delete unnecessary districts and rebuild after unlocking new tech to avoid wasted slots.
Mid-Game Expansion Checklist
Numbered steps for steady growth:
- 1. Complete Improved Administrative Efficiency (Tier 2)
- 2. Construct one Administrative Park per sector
- 3. Pass the Greater Administrative Capacity resolution
- 4. Reassign leaders to planets with the Bureaucrat trait
- 5. Check the outliner monthly to redistribute unused slots
Common Mistakes to Avoid
Do not overbuild city districts before unlocking extra slots. Excess housing lowers stability and reduces resource output. Keep one open district slot on each planet for emergency housing during sudden pop growth events.
Late-Game Scaling
After unlocking the Galactic Wonders ascension
perk, you gain five more slots per
After unlocking the Galactic Wonders ascension perk, you gain five more slots per planet. Combine this with the Adaptability tradition tree for a further 20% reduction in empire size from districts. This combination supports megastructure spam without administrative penalties.
Frequently Asked Questions
How many district slots can I add in one game?
Through repeated tech and resolution bonuses you can reach 45 district slots empire-wide by mid-game.
Does planet size affect district slots?
Yes. Larger planets start with more slots, but the empire-wide cap still applies regardless of individual planet size.
Can I remove districts to free slots?
You can demolish districts, yet the slot remains occupied until you research tech that explicitly increases capacity.
Do habitats count toward district slots?
Habitats use a separate housing system and do not consume standard district slots on planets.
What happens if I exceed the administrative cap?
Your empire incurs penalties to research speed and stability, making expansion slower and riskier.