Southall Data Centre Redevelopment Approved by Ealing Council

Key Points

• The Southall Industrial Estate on Trident Way, one of West London’s largest industrial estates, is set to be demolished.
• The redevelopment includes four data centre units, a central pavilion, and office spaces.
• The site will also have four industrial buildings, two power-generating substations, smaller workshops, and logistics facilities.
• The project is expected to create over 1,120 permanent new jobs and around 460 construction jobs annually during building.
• Developer GTR London is investing £300,000 in off-site flood risk mitigation and has agreed to a £20 million planning gain contribution.
• Of the £20 million, £6 million is earmarked for Ealing Council’s data centre training and skills strategy.
• The new site will cover over 156,000 square metres of data centre floor space with an additional 21,759 square metres of traditional industrial space.
• Environmental benefits include a 79.4% biodiversity net gain with 153 new trees planted and the use of excess heat to power a local heating network.
• Planning was approved by Ealing Council on 22 October 2025.
• Data centres have been classified as critical national infrastructure by the government as of September 2024.

What Does the Southall Industrial Estate Redevelopment Involve?

As reported by the Local Democracy Reporting Service via BBC News, the redevelopment of the Southall Industrial Estate involves the demolition of existing warehouses and workshops located on Trident Way. In their place, four large data centre units will be constructed, alongside a central pavilion designed as a café and amenity hub and office spaces for management and staff. Additionally, four industrial buildings ranging from 11.3m to 15.5m in height will form part of the new estate. The site will also include two substations, a District Heating Network building, internal roads, parking facilities, and significant landscaping featuring a new Green Link and canal-side public realm.​

GTR London, the developer behind the project—which purchased the site from Royal London Asset Management for £315 million—is leading the redevelopment. The demolition phase is expected to last around one year, followed by an estimated four-and-a-half years of construction work.​

How Many Jobs Will the Redevelopment Create?

The project promises significant employment benefits, as highlighted by several sources including The View from W5 and Harrow Online. It is projected to create more than 1,120 permanent full-time equivalent jobs, substantially increasing the approximately 410 to 530 positions currently supported by the estate. In addition, around 460 construction roles per year will be generated during the build phase.​

What Financial Contributions Are Being Made for the Local Area?

Developer GTR London has made a substantial planning gain agreement valued at £20 million. Of this total, £6 million is specifically allocated for Ealing Council’s data centre training and skills strategy to prepare local residents for emerging jobs in this growing sector. An additional £300,000 will be used for off-site flood risk mitigation, demonstrating attention to environmental and safety concerns. Furthermore, about £6.6 million will be invested in a Data Centre Skills and Training Strategy, and £750,000 will support a Local Economy Management Plan.​

Why Are Data Centres Being Classified as Critical Infrastructure?

According to The View from W5, the government classified data centres as “critical national infrastructure” in September 2024, placing them alongside utilities and emergency services. This reflects their vital role in supporting the digital economy, cloud computing, and data storage vital to society’s functioning.​

What Environmental and Design Considerations Are Included?

The redevelopment incorporates significant environmental enhancements. The project targets a Biodiversity Net Gain of approximately 79.4%, including the planting of 153 new trees and the introduction of rain gardens to improve local ecology. The urban greening factor will be 0.17, ensuring greener spaces within the industrial zone. The excess heat produced by the data centres will be reused to power a local heat network that serves the industrial units, possibly linking to broader heat networks involving neighbouring councils. Solar panels covering 1,000 square metres will also be installed on the industrial buildings.​

What Is the Scale of the Data Centre Complex?

Per reports by UK Property Forums and Harrow Online, the four data centre units will collectively offer over 156,000 square metres of data centre gross internal area (GIA). Along with this, there will be over 21,750 square metres of traditional industrial floor space on site. One of the industrial buildings has been specifically designed as a logistics and distribution centre. The pavilion building will serve as the central hub, offering office spaces and support facilities, marking the entrance to the new estate.​

How Does This Development Fit Into West London’s Data Centre Cluster?

West London is increasingly becoming a hotspot for data centre development, with locations such as Park Royal, Hayes, and Slough hosting multiple centres. The data centre cluster supports London’s digital infrastructure needs with this project in Southall adding significant capacity. Recent approvals, including three data centres at Hayes Bridge Retail Park granted by hillingdon/hillingdon-council/">Hillingdon Council, echo this growth trend.​

What Are the Transport and Access Provisions?

The Southall site redevelopment will include 315 car parking spaces, incorporating 48 disabled parking spots, and about 120 cycle parking spaces split between long and short stay. The internal road network is planned to facilitate smooth movement within the estate. These measures highlight the project’s commitment to accessibility and sustainable transport options.​

Have There Been Any Challenges Mentioned?

With the rapid expansion of data centres, there are rising pressures on local electric networks in West London, which may slow other redevelopment projects. The estimated annual electricity consumption by the Southall data centre site is projected at over 1.6 million megawatt-hours, entirely sourced from renewable energy via the National Grid. This aligns with regional goals of sustainable power use in digital infrastructure.​

The Southall Industrial Estate’s transformation into a state-of-the-art data centre campus marks a significant milestone in West London’s infrastructure development. The project balances industrial intensification, environmental responsibility, and community benefits, reflecting the high priority London places on digital infrastructure. Developer GTR London’s investment and the local council’s supportive planning framework together set the stage for this modernisation to boost jobs, skills, and connectivity in the area.