The Brick Lane story is being reported as a local heritage dispute. It is actually a preview of a policy choice the UK government has been quietly making: when electricity is scarce, datacentres come first.
The proposed facility at the old Truman Brewery is relatively small by industry standards. It would consume about 5 megawatts of power at peak, which campaigners compare to the electricity needed by roughly 15,000 homes. Its main purpose is not to run AI chatbots. It is built to serve high-frequency financial trading, sitting close enough to the City of London that the milliseconds saved on data travel translate into real money for trading firms. The local council rejected it unanimously. The developer appealed. The Housing Secretary then took the decision away from the council entirely, meaning a government minister now decides whether it gets built. A ruling is expected by 17 August.
That intervention reflects a broader government position. The UK has designated datacentres as nationally significant infrastructure and is consulting on giving them priority access to the electricity grid, ahead of housing developments. Grid connection applications grew 460% in the first half of 2025 alone, driven mainly by datacentre projects. Around 140 datacentre schemes are currently waiting for UK grid connections, requiring a combined 50 gigawatts of power: more than the country's entire current peak electricity demand.
The housing cost of this is already visible. Since 2022, parts of west London reached full electrical capacity. New housing developments in Hillingdon, Hounslow, and Ealing were temporarily halted. At one point, some projects were told they would have to wait until 2037 for a grid connection. Short-term fixes eventually connected over 21,000 homes, but the underlying problem has not been solved. The London Assembly's planning committee found that datacentre electricity demand is a contributing factor to house-building delays across the capital, and warned that demand could rise by up to 600% between now and 2050.
Scotland is moving toward a freeze. The SNP's national council passed a motion to halt all new datacentre approvals in Scotland, and the Scottish government is now considering it. Campaign groups there have calculated that datacentres currently in the planning system could require between 4,700 and 5,200 megawatts of electricity: more than Scotland's entire winter peak demand. Ireland reached this point years ago. Dublin operated under a formal moratorium on new datacentres, during which they consumed roughly one-fifth of Ireland's total national electricity. The moratorium has only recently been lifted.
The Brick Lane case concentrates all of this into one decision. The site could hold 350 homes according to an alternative plan commissioned by the council. Instead, the current proposal offers 44 homes total, of which only six would be at social rent, in a borough with over 28,000 families on the council housing waiting list.
For business operators outside the tech sector, this matters for two reasons. First, if you operate or own property in areas where datacentres are being built, electricity grid constraints could affect your own expansion plans, whether that means building new facilities, electrifying your fleet, or connecting industrial equipment. Second, the government's decision to prioritise datacentres in planning and grid access is a signal about where public infrastructure investment is headed. Companies building or leasing physical space in the UK should factor grid availability into their site decisions now, not after they have signed a lease.
The government wants the UK to lead in AI. That is a legitimate goal. The problem is that it has not yet explained how it plans to build enough grid capacity to serve both the ambition and the millions of people who need homes. Until it does, every datacentre approval is a choice made at someone else's expense.