AET help with the reconfiguration of a 1950’s office building in Holborn

AET help with the reconfiguration of a 1950’s office building in Holborn

Completed in December 2020, the 20 Red Lion Street redevelopment existing of a 1950’s office building in the heart of Holborn, included a single-storey extension to the roof, an extension to the office plate to the rear by 3.5m, and an extensive internal reconfiguration.

Using AET Flexible Space’s underfloor air conditioning system has allowed the project team to maximise floor to ceiling heights, natural light, and the adaptability of the office space.

Working closely with M&E consultants, The GDM Partnership, AET’s CAM-C underfloor air conditioning system was specified to serve the newly built sixth floor. To ensure floor to ceiling heights were maximised a 200mm high raised access floor was installed within which AET’s unique TU350 slim line Fantiles™ were installed.

Due to the proximity of the CAM unit to the exterior of the building, a perimeter return air path was used to maximise the supply air path. The sixth floor is glazed on three sides, meaning that solar gain was high, and that maximum air supply was needed to effectively regulate the temperature of the space.

The C-35 Conditioned Air Module (CAM) is fed by an externally located, high efficiency heat pump which enables it to produce cool and warm air as and when required. The floor void is divided into supply and return air channels. Conditioned air is introduced into the space by the, floor recessed, Fantile™ units with spent, room air, drawn back to the CAM unit via passive, return grilles, which are also installed within the raised access floor.

Fresh air is then ducted into the return air path from a centralised air handling unit where it mixes with the room air, filtered and reconditioned helping the system to achieve high standards of indoor air quality. The newly built sections at 20 Red Lion Street has received an ‘Excellent’ BREEAM rating.

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AET Flexible Space

AET Flexible Space

AET Flexible Space is a leading global provider of Underfloor Air Conditioning (UfAC) systems.

By using the plenum beneath a raised access floor as the ventilation zone, duct and pipework can be virtually eliminated and commercial space...
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