Seoul Districts Push Tighter Data Centre Rules
Seoul’s data centre boom has triggered a regulatory dispute. All 25 district heads are moving to tighten construction rules while South Korea pushes ahead with a major AI build-out. The clash matters because it could slow permits in the capital region, where most capacity already sits.
Why Local Officials Want More Control
On 13 August, the heads of all 25 Seoul districts agreed to ask the Seoul Metropolitan Government for tougher rules on new data centre projects. Yeongdeungpo-gu said the plan would require architectural reviews and restrict data centres in residential areas.
District officials want more power to assess local impact before permits are granted. They also want changes to the Building Act. Those changes would let local governments reject data centres in semi-residential, semi-industrial and commercial zones.
That push reflects growing resistance across Seoul, Incheon and Gyeonggi Province. Local media cited 17 delays or cancellations among 33 data centre projects pursued in the region in 2024 and 2025.
The tension is practical, not abstract. According to the Seoul city government, data centres are treated as telecommunications facilities. That classification limits local governments’ ability to block them across about 88% of Seoul. District officials say current rules give them too little discretion over projects in dense neighbourhoods.
Residents are pressing the same case. They cite electricity use, water use and possible pressure on property values. In Geumcheon-gu, disputes between residents and developers have escalated into criminal complaints and countercomplaints.
Cho Yu-jin, mayor of Yeongdeungpo-gu, said residents are increasingly worried about data centres in densely populated areas. He said urgent legal changes are needed so district governments can decide on permits.
What Does the Policy Clash Mean for Investors?
The bigger issue is that Seoul is tightening the local gate just as the state is opening the national pipeline. According to Korea Herald reporting, the central government is backing 8.4 gigawatts of AI data centre capacity from 2029. SK, GS and Naver are among the named companies in that programme.
Separately, SK plans to expand nationwide data centre capacity by 10 gigawatts by 2035. That makes the policy direction clear: the build-out will continue, but site selection may shift.
Lawmakers are already focusing on resource constraints. Rep. Na Kyung-won said there were not enough estimates for water demand tied to the planned facilities. Rep. Kim Tae-seon said a 1,000-megawatt data centre in Ulsan would use about 26,000 tons of water a day, citing the National Assembly debate.
Minister of Climate, Energy and Environment Kim Sung-whan said the government will compile and report provisional water-demand estimates as soon as possible. He also noted that usage varies sharply by facility.
South Korea’s data centre expansion now faces a local permitting test as much as an energy test.
For investors, the message is straightforward. Seoul data centres remain strategically important, but future projects may face tighter zoning, longer approvals and stronger scrutiny of power and water access. Watch for Seoul ordinance changes, Building Act revisions and any shift in where hyperscalers and utility-linked developers choose to build next.
Quick answers
All 25 Seoul district heads want stricter construction rules because current law classifies data centres as telecommunications facilities, limiting local governments’ ability to block them across roughly 88% of Seoul. Residents have raised concerns over electricity use, water consumption and property values.
The South Korean central government is backing 8.4 gigawatts of AI data centre capacity from 2029, with SK, GS and Naver named as key participants. SK separately plans to expand nationwide capacity by 10 gigawatts by 2035.
According to the National Assembly debate cited by Rep. Kim Tae-seon, a 1,000-megawatt data centre in Ulsan would use approximately 26,000 tons of water per day, highlighting resource constraints lawmakers say have not been fully assessed.
