1 Basighall, London.

At a glance

  • Project value – c. £30M
  • 207,000 sq.ft. Office
  • Client – Leonari
  • Decarbonisation Scheme
  • NABERS compliant
  • Design and Projects
  • Refurbishment
  • Detailed Design
1 Basinghall London Design and Projects Eteria Sustainable Engineering

Project brief

Eteria was appointed to develop a full Stage 4 design for the decarbonisation of the air conditioning and heating at this large commercial office building in central London. The client provided an initial concept design, which Eteria took forward to detailed design. The brief centred on delivering a future-proof, low-carbon strategy that would significantly reduce the building’s reliance on fossil fuels and align with net zero targets. Key elements of the scope included high-efficiency air handling units with heat recovery, the installation of roof-mounted air and water heat pumps, integration of buffer vessels, replacement of common area fan coil units, and the design of a new high-specification reception.

Challenges

One of the primary challenges was integrating the proposed systems with the building’s existing infrastructure in a way that minimised disruption to tenants while maximising operational and energy efficiency. This required a full thermal load assessment of the building to accurately size plant and risers. Careful consideration was needed to coordinate the phased installation of new plant alongside retained systems, avoiding downtime and ensuring compliance with landlord and tenant requirements. The project also demanded close coordination between Eteria, the contractor team, client stakeholders, architects, and other consultants to manage spatial constraints, logistics, and delivery risk on a live, occupied site.

Results

Eteria successfully delivered a fully coordinated Stage 4 design that ticked all the right boxes. The design has in principle offered a reduced operational carbon, enhanced the building’s environmental credentials, and set a clear path for full electrification of the site.

By taking a collaborative approach, the project team delivered a robust strategy that met the client’s objectives and future proofed the asset towards a Net Zero milestone.

1 Basinghall London Design and Projects Eteria Sustainable Engineering
1 Basinghall London Design and Projects Eteria Sustainable Engineering
1 Basinghall London Design and Projects Eteria Sustainable Engineering
1 Basinghall London Design and Projects Eteria Sustainable Engineering

We are focused on applying practical, forward-thinking technologies to improve the efficiency and sustainability of assets and their operations. Our goal is to support carbon reduction by using innovation blended with traditional practices to ensure a robust solution.

Evan Rodis

Owner and Director, Eteria