Greater London Authority warns housing developers about a potential ban on new housing until 2035, citing a growing number of data centers consuming electricity
West London has been running out of grid headroom for years: the UK's data center stock is set to grow from 477 facilities by roughly another hundred within five years, with more than half concentrated in London and neighboring counties per Barbour ABI's pipeline count. Microsoft, Amazon and peers have already turned to repurposing old power stations and industrial sites because land and power are 'heavily constrained' across markets.
The Greater London Authority's warning formalizes what later coverage confirmed: the government ended up prioritizing AI data centers over housing in Europe's biggest data center hub, while locals in Potters Bar mounted their own challenge to Equinix's $5B data center plans. The GLA message to developers — upgrades might take more than a decade — makes electricity allocation an explicit planning constraint on homes.
First-order effects
Developers in west London now face the prospect of no new housing approvals until 2035, because data centers are absorbing the electricity capacity those homes would need.
Second-order effects
With the government already favoring data centers over housing in London, housebuilders lose the policy tiebreaker and must compete for whatever grid-connected sites remain — pushing them toward the same industrial land Microsoft and Amazon are targeting.
Third-order effects
If power allocation keeps deciding what gets built, city planning splits into two camps: jurisdictions like London that ration homes to make room for compute, and the backlash model seen in the US, where bans have topped 500 and New York and Texas joined the pushback.
The trend: Grid electricity capacity is becoming the binding constraint on urban development, forcing cities to explicitly choose between hosting AI data centers and building homes.
Much to unpack here... but the cascading effects of restricting housing development combined with the lack of modern electric infrastructure are going to have widespread economic implications for London. https://twitter.com/...
Everything going fine “Developers in west London face a potential ban on new housing projects until 2035 because the electricity grid has run out of capacity to support new homes, jeopardising house building targets in the capital.” https://www.ft.com/...
London is running out of electricity capacity because it's all being sucked up by data centres. Things are getting so bad that housebuilders in west London have been told they can't build new homes https://www.ft.com/... https://twitter.com/...
*Slightly mind-boggling* scoop: new building is getting blocked in west London because the electricity grid is at capacity. There may not be a fix for A DECADE or more. 🤯 w/@sjhmorris https://www.ft.com/...
“Pressure on the grid in west London has been particularly acute because a number of data centres have been built nearby in recent years” https://twitter.com/...
The other side to the levelling up argument: if you're having to build more and more infrastructure to sustain the amount of the economy that's in London, it might make sense to grow the economy somewhere else too https://www.ft.com/...