Chapelcross data centre objections top 1,000 in 48 hours

Chapelcross data centre objections have been reported above 1,000 within 48 hours as opposition builds to the proposed hyperscale campus near Annan.

The surge in Chapelcross data centre objections is the first major development since the £16.5 billion scheme entered planning at the end of September. Application 26/1649/PIP seeks Planning Permission in Principle for eight data-centre buildings, a training centre, industrial units, a substation and associated infrastructure.

The timing makes the Chapelcross data centre response more significant. Scotland is preparing national planning and spatial guidance for hyperscale data centres after MSPs agreed in September that decisions on such applications should not be made until that work is completed.

What the Chapelcross data centre objections are about

For the Chapelcross data centre, Forbes Scotland reported on 6th October 2026 that more than 1,000 objections had been lodged in 48 hours. Other campaign material now says thousands of people have made their views known.

The Chapelcross data centre application remains open for public comment, with published application listings giving 29th October 2026 as the consultation deadline. The public register does not expose a simple independently verifiable live objection total in the sources checked by Planning Geek, so the 1,000 figure should be understood as a reported count rather than a council-certified total.

That caveat does not reduce the importance of the reaction. A proposal of this scale was always likely to attract scrutiny, but the speed of the response shows that electricity demand, landscape impact and the use of rural land have moved quickly from technical planning issues into a wider political argument.

Planning Geek first reported the Chapelcross data centre application when it entered planning. The new development is the scale of the public opposition and the way that opposition now intersects with Scotland’s national data-centre policy review.

The application is for permission in principle

Application 26/1649/PIP seeks Planning Permission in Principle for a data-centre-led campus on land north of the former Chapelcross nuclear power station.

The developer, CX Tech, describes a campus of about 55 hectares with up to 162,000 square metres of data-centre floorspace across eight buildings. It also proposes a training centre, industrial space, power infrastructure, access, landscaping and supporting works.

The developer presents the project as a long-term strategic investment with around 750 construction jobs, about 540 permanent direct jobs and 40 apprenticeships in each construction year. Subject to consent and investment decisions, phased construction is proposed from 2027 to 2035.

The headline power figure is often described as 1GW. The more detailed material points to about 120MW for each of eight data-centre buildings, which totals 960MW. The 1GW description is therefore a rounded statement of potential scale rather than evidence of a final secured electricity connection.

Power supply is becoming the central planning question

The opposition campaign focuses heavily on energy demand. The Scottish Greens say the campus could use about 7 million MWh of electricity a year and compare that with the annual consumption of more than two million homes.

Those comparisons are campaign claims, but the underlying planning question is real. At Planning Permission in Principle stage the council still has to be satisfied that the proposal can be accommodated within the infrastructure and environmental framework that governs the site.

The Scottish Greens’ objection template points to NPF4 Policy 18 and argues that the application does not yet identify the specific generation projects that would supply the campus, their contracted capacity or the eventual balance between dedicated renewable generation and grid supply.

The developer says the site benefits from an adjacent 132kV Grid Supply Point and access to renewable generation. Its project website also says the campus is intended to operate as a net-zero technology campus using renewable and low-carbon energy sources.

For planning purposes, those competing claims have to be tested against the application evidence. The question is not whether one side describes the project as green and the other as damaging. It is whether the submitted infrastructure, climate and environmental evidence is robust enough for the decision-maker to rely upon.

Environmental assessment is no longer optional at this scale

Scotland tightened the environmental assessment position for large data centres in September. The new direction requires environmental impact assessment for data-centre proposals above 50MW where they fall within the relevant Schedule 2 development descriptions.

Chapelcross is far beyond that threshold. CX Tech says an extensive Environmental Impact Assessment has been submitted, covering matters including environment, transport, ecology, noise, water and climate.

Campaigners have seized on parts of that material. The Scottish Greens say the developer’s assessment identifies a moderate adverse and significant greenhouse-gas effect. They also question the extent to which the proposal should be treated as brownfield redevelopment, arguing that much of the land affected is agricultural rather than previously developed.

The developer describes the scheme as a redevelopment opportunity associated with the former Chapelcross energy site and says the campus is designed to align with the UK Green Building Council framework.

Those are precisely the sorts of issues an EIA process is supposed to expose. Submission of an Environmental Impact Assessment is not a finding that impacts are acceptable. It provides the information that must then be tested through consultation, technical review and the planning balance.

Holyrood has changed the policy context

The political backdrop is unusual. On 16th September 2026, the Scottish Parliament agreed an amended motion on hyperscale data centres.

The final motion called for national planning guidance, robust environmental standards and a clearer definition of hyperscale development. It also said that no planning or consenting decisions on such applications should be made until that work is completed.

The motion is not itself a new statutory planning prohibition. It does, however, create a clear political expectation while the Scottish Government prepares national guidance.

That matters at Chapelcross because the developer’s website has targeted Planning Permission in Principle by December 2026, while ministers have committed to producing the new national planning and spatial guidance by the end of the year.

The likely practical effect is that the application will be examined in a moving policy environment. Any decision will need to account for the guidance that applies when the council reaches determination, not simply the position when the application was lodged.

Community response may shape the evidence rather than decide the vote

Large objection numbers can carry political weight, but planning decisions are not referendums. A thousand objections do not automatically require refusal, just as a smaller number would not make the proposal acceptable.

What matters is the substance of the representations. Concerns about grid capacity, landscape character, agricultural land, air quality, greenhouse-gas emissions, noise, traffic, biodiversity and water use can all be material where they connect to the development plan and relevant technical evidence.

The same applies to claimed benefits. Jobs, investment, training, regeneration and strategic infrastructure can carry weight, but they have to be considered alongside the impacts and the policy framework.

For applicants, the lesson is simple: high-profile projects need evidence that answers the likely objections before they become committee headlines. For objectors, detailed representations tied to policy and evidence are more useful than repeating the same general objection hundreds of times.

The brownfield argument is likely to remain contested

One of the sharper disputes concerns how the site should be characterised. The developer describes the campus as an opportunity to reuse land associated with Chapelcross’s industrial and energy history and says the proposal is based on roughly 55 hectares of brownfield land.

Campaign groups dispute that description and say much of the proposed development area is farmland north of the former power station rather than the previously developed nuclear site itself.

That is not merely a semantic argument. Site status can affect the planning narrative, the weight attached to redevelopment benefits and the assessment of landscape and land-use effects.

The planning authority will ultimately need to work from the defined red-line application site, its planning history and the actual land affected by development, rather than broad descriptions used by either supporters or opponents.

What happens next?

The application remains at assessment stage. Published records show it was received on 21st September and validated on 28th September 2026.

Public comments remain open until the end of October according to the current application listings. Technical consultees and the council’s planning officers will also need to work through the Environmental Impact Assessment and supporting documents.

The Scottish Government’s forthcoming hyperscale data-centre guidance is likely to become a material part of that process if it is issued before determination.

For now, the new story is not that Chapelcross has been refused or delayed. It has not. The important development is that the application has moved rapidly into a high-profile planning dispute, with more than 1,000 objections reported within two days and national policy still being written around it.

The CX Technology Campus website sets out the developer’s case. The Scottish Parliament motion records the national policy debate, while the application should continue to be checked against Dumfries and Galloway Council’s live planning register.