CGI of new data centre building in Data Centre in Longcross Park, Surrey.

Longcross Data Centre One, Surrey

Client: Ark Data Centres

Ark Data Centres - Designing and operating data centres which empower businesses to work from anywhere in the world.


Chertsey, Surrey


90 weeks

Contract value



2023 to 2025

The brief:

Section 3 of this project includes the construction of the Energy Centre, Ancillary Building, Data Centre, and Substation. The data halls and array of secure rooms provide a building total of 16.8MW. Sweet Projects are undertaking all the civils elements, including slabs, construction of the Energy Centre and Ancillary block. As Principal Contractor we are overseeing the whole delivery of the Data Centre build, M&E installation, including back-up generators. H&MV are constructing the main substation and running the main power cable to site on behalf of Ark. BladeRoom are constructing the data hall structure & JCA are installing the M&E installation. 

Key challenges:

  • Challenging programme and key date deliveries for Alliance Partners
  • Site constraints from Neighbours
  • No on-site parking during the build
  • Ground conditions not ideal in wet conditions

The solution:

  • Close collaboration and engagement amongst the Alliance Partners
  • Weekly co-ordination meetings with Neighbours
  • Local offsite parking with a shuttle bus
  • Programming of key activities during Summer months

As a trusted and key partner of Ark Data Centres, Sweet Projects go above and beyond in challenging the status quo and enabling us and our clients to push the boundaries of the possible in the delivery of our projects, keeping us at the forefront of Data Centre provision in the UK.

- Andy Garvin - Chief Operating Officer, Ark Data Centres