A data center that could offer up to 50,000 sqm (538,195 sq ft) in floorspace was approved for construction on the Haslemere Heathrow Estate located in west London, UK.

The Hounslow Council approved the application on Thursday August 6th, which calls for the construction of three data center buildings totaling on top of a land parcel currently occupied by a series of industrial warehouses called the Heathrow Estate.

A planning document shows that the data center would require 64MW of electricity, offering 48MW of IT load at a targeted PUE of 1.35.

The project was put forward by a company called Brixton (Heathrow Estate) Ltd, which is related to California-based real estate investment firm Kennedy Wilson.

The firm previously applied to build a 73MW data center campus outside Slough, which is west of Hounslow and home to the UK's largest cluster of data centers by capacity.

The company’s December 2025 application states that Brixton (Heathrow Estate) is “not an operator of data centers and that a “specific operator will then bring forward their bespoke scheme via the reserved matters process.”

“The Heathrow Estate is failing to maximize its potential. Redevelopment as a data center could lead to a wide range of local benefits, including significant [Community Infrastructure Levy] payments, higher Business Rates income, and the creation of skilled jobs in the local area,” said the company on its project website.

Hounslow is located in west London, close to Heathrow Airport.