How to object to a data centre

When the diggers come for a glen, a field, a hillside, the law gives ordinary people one real lever: the planning objection. It is far stronger than a signature, and almost anyone can pull it. This guide shows you how — plainly, wherever you live in the UK.

Does it actually work?

Yes — though let's be honest about the odds. Most applications get approved. But data centres have been stopped: a 213MW proposal in Edinburgh's South Gyle was refused, and a London borough's approval of "Europe's largest data centre" was challenged and unwound. What changes outcomes is not volume alone but well-evidenced objections grounded in planning policy — and lots of them. A hundred thoughtful, individual letters are a force a council cannot wave away. And even where permission is granted, organised pressure wins conditions, protections and concessions that silence never would. The fight is worth having.

What you're facing

A modern AI data centre is not an office or a warehouse. The largest are hyperscale — vast halls of computers consuming the power of a small town, cooled by enormous quantities of water, generating few permanent jobs, and often built speculatively before any customer is named. Not every data centre is harmful: a modest one on a brownfield site, reusing an existing building and its waste heat, sited where the grid can bear it, can be reasonable. The question is never simply "data centre: yes or no?" It is the right development, in the right place, at the right scale, for a real need — and whether the community that carries the cost sees any benefit.

That distinction is the heart of it. Your objection is strongest when it is not anti-technology but pro-place: when it shows, specifically, why this proposal, here, at this scale, is the wrong one.

Reading the application: warning signs

You don't need to be a planner to spot a concerning proposal. When you open the documents, look for these — each is a legitimate, material thing to raise:

• No named end-user. "Speculative" or "outline" applications ask you to accept a vast industrial site on trust, with no operator committed. If the need isn't proven, that is a planning objection in itself.
• Vague or missing water figures. If the application won't say how much water it will draw — especially in a stressed catchment — that silence is the story.
• Hand-waved energy. Claims of "renewable supply" with no binding mechanism, or no honest account of grid reinforcement and who pays for it.
• Greenfield, when brownfield exists. Building on farmland, moorland or green belt while disused industrial land sits empty nearby.
• Scale that dwarfs the place. Buildings measured in tens of metres and hundreds of MW dropped beside a village.
• Heritage or habitat in the footprint. A scheduled monument, listed setting, ancient woodland or protected species on or near the site.
• "Phase one." A modest first phase that quietly establishes the principle for a far larger build later.

What counts — and what doesn't

Councils can only weigh material planning considerations. This is where most objections fail: people write passionately about things the planning system is not allowed to consider, and those points are simply set aside. Aim your fire where it lands.

Your jurisdiction

The grounds for objecting are the same across the UK — but where you send your objection, how long you have, and who decides differ. Before anything else, settle one question:

Write a strong objection

The anatomy is simple. Keep it clear, specific, and in your own words:

1. Heading — your name and address, the application reference, the site address, and the word OBJECTION.
2. One opening line stating that you object and why, in a sentence.
3. Your grounds — one short paragraph each, every one a material consideration, the strongest first. Tie each to harm you can describe.
4. Local knowledge — the thing only you can say. The lane that already floods. The bats over the field. The view from the school. This is what makes a real objection, not a template.
5. A clear ask — that the application be refused, or that specific protections be required.

Four grounds, worked

Beyond the objection

• Get your neighbours to object. Numbers count. Share the deadline, the reference, and these grounds — but urge everyone to write in their own words.
• Work with your council — parish, community or town. In Scotland they are statutory consultees; everywhere they carry local weight.
• Write to your councillor and your MP / MSP / MS / MLA. Ask them to call the application to committee, or to speak.
• Ask to speak at the planning committee. Most allow objectors a few minutes. Prepare, be specific, be calm.
• Reach the media when the moment is right — local press first. A clear story with real people moves things.
• Judicial review is the last resort — a challenge to the lawfulness of a decision, not its merits, on a tight time limit. Take legal advice early; communities have used it (Havering, the Lammermuirs) to real effect.

Your objection checklist

Appendices & useful links