20 Mar

Irwin Completes M&E on Extended Arnold House in Tech-City, London

Irwin M&E recently completed the Mechanical and Electrical works for the redevelopment of Arnold House in the fast-growing ‘Tech-City’ area of London, working for client Gilbert-Ash. The former industrial building was extended upwards by adding 3 floors to the existing 4-storey building, to deliver 75,000 sq.ft. of new stand-out office and retail space.

Arnold House is located on the corner of Great Eastern Street and Holywell Lane in South Shoreditch, a hub for technology and media businesses. The project continues Irwin M&E’s strong track record in successful delivery of technologically advanced buildings, having also delivered the new Innovation Centre for 5G Technology at the University of Surrey – the first facility of its kind worldwide; and the STEM Building at the University of Surrey. 


“Arnold House was a really interesting project to work on” said Matthew Bowden, Irwin M&E Contracts Manager. “Delivered under a Design and Build contract, we used 3D Autocad to design the duct work which was prefabricated off site. This allowed us to implement just-in-time delivery to site, which was important as it is located on a very busy street with restricted access. This in turn meant a quicker turnaround and installation, with no bottlenecks on supplies. It was also preferable from a Health, Safety and Quality perspective as the duct work was prefabricated in a controlled factory environment and meant that a Hot Works permit was not required on site”.

Recycled lighting

“The project architect BuckleyGrayYeoman, incorporated traditional-style industrial lighting fixtures which acknowledged the building’s industrial past. We procured these high-bay lights from a recycling yard and installed them as impressive feature lighting in the building’s reception”.

Training & apprenticeships

Irwin M&E has a strong focus on training, both for employees and for apprentices. Working with Shoreditch Council, they employed 2 apprentices on site, one Mechanical the other Electrical, for the duration of the project.

Matthew commented “As a company we are committed to employing apprentices so that they can learn effectively on site, giving context to their accompanying studies, so we were particularly proud that one apprentice achieved his Level 2 NVQ in Plumbing and Heating while working on the project”. 

Building occupiers & facilities management

With the future building occupiers in mind, the Irwin team brought several innovations to the project design to simplify the running of the building for the Facilities Manager. These included centralising the air conditioning, giving the Facilities Manager overall control and changing the configuration of the service risers so that services would be easier to access. This avoided access hatches in the finished ceiling, making it more aesthetically pleasing. A winch was also installed for the stair-core feature light for ease of maintenance. 


Arnold House incorporated several sustainable technologies and attained a BREEAM Very Good certification. It also attained a WiredScore Gold Certification.

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