Segro and Pure DC are partnering on a new data center project in Paris, France.

Announced this week, the pair have formed a 50:50 joint venture to develop a fully fitted data center in Paris, targeting a pre-let with a global hyperscaler.

The powered site will see a 48MW data center developed. A 75MW grid connection has been secured.

Full details haven’t been shared, but the firm is known to be targeting two sites around Paris. One is in Le Bourget, a commune in the northeastern suburbs of Paris, with the company looking to develop a three-building campus on land that previously housed a H&M warehouse. The other site is southwest of Paris in Val-de-Marne, with the company looking to develop a 70MW project within the 15-hectare Petits Carreaux business park.

The project will see some £800 million ($1.06bn) invested – inclusive of the value of the land contributed by Segro for the development. Segro will contribute some £60 million ($80m) in cash.

The companies said construction will start once satisfactory planning permission has been received and lease commitments have been secured. The first phase is due to go live three years after construction starts, with final delivery a year after that.

David Sleath, chief executive of Segro, said: “This second joint venture with Pure DC builds on the momentum across our European data center platform and demonstrates how Segro can crystallise the significant value in its 3GW power bank through a repeatable, capital-efficient model.”

Sleath added that the Paris project is the company’s first data center development in continental Europe. The company is known to be targeting developments in France around Paris and Marseille, and previously outlined potential to develop in Italy, Germany, and Poland in key cities such as Frankfurt, Milan, and Warsaw.

Gary Wojtaszek, executive chairman and interim-CEO at Pure DC, added: “Large-scale powered sites in Europe’s leading metropolitan markets have become one of the scarcest and most strategically valuable resources in digital infrastructure. Demand for digital infrastructure across Europe is accelerating, but access to suitable sites with secured power and favourable planning positions in the FLAP-D markets remains the defining constraint. This makes the portfolio that Segro has assembled across Europe’s major metropolitan markets an exceptionally rare asset.”

Pure and Segro announced plans for a 30,000 sqm (322,915 sq ft) data center in the Park Royal area of London in May 2025. Located in Segro’s Premier Park, the facility will total 70MW of utility power and 56MW of IT capacity. The project got the greenlight from local officials in March 2026.

Sleath added: “Our first project together at Premier Park is progressing well, with planning approval secured ahead of schedule and active discussions underway with two global hyperscalers.”

LSE-listed Segro is a real estate investment trust and a major owner of data centers in the UK. Founded in 1920 and traditionally known for its industrial warehouse developments, Segro has been providing powered shells to data center customers for around 20 years, mostly centered around Slough to the west of London.

The company has previously said it has some 500MW of data center capacity in operation or development around Slough. Known data center customers include Amazon, CyrusOne, Equinix, Iron Mountain, Virtus, GTR, and Pure.

Segro is currently fighting off a potential acquisition by US real estate giant Prologis.

Pure was established in 2015 and is backed by funds managed by Oaktree Capital Management. The London-based company currently has more than 500MW of IT capacity in operation or development in markets across Europe, Asia, and the Middle East.

The Paris development would be Pure’s first French data center project. The company has developments across Europe in the Netherlands (Amsterdam), Finland (Seinäjoki), Ireland (Dublin), the UK (London), and Spain (Madrid).