TGA designed environmental control systems that make best use of the inherent qualities of the buildings in order to control temperature and humidity for the benefit of visitors, artefacts and the building itself whilst using as little energy as possible and minimising the impact on the building fabric.

Durham Cathedral Open Treasure

Wins at the Durham Environment Awards


(Built Environment Award, Craftsmanship Award and Outstanding Award 2018)


Durham Cathedral Open Treasure

Wins a whole host of awards including:

RIBA North East Award 2018, RIBA North East Conservation Award 2018, RIBA North East Building of the Year 2018 and RIBA National Award 2018.

TGA Consulting Engineers LLP were employed by the Dean and Chapter of Durham Cathedral to work as part of a team led by Purcell Architects on major projects to redevelop their exhibition spaces.

Phase 1a of Open Treasure was carried out to relocate the Cathedral Shop out of it’s former location in the Great Kitchen. Phase 1b of Open Treasure has created a series of major gallery / exhibition spaces which will be used for the display and interpretation of the collection of treasures held by the Cathedral as well as for the display of visiting exhibitions. Works also include the development of a new energy centre and a new substation to serve the whole Cathedral precinct all located within the mediaeval buildings of Durham Cathedral in its’ World Heritage site.

In order to achieve all of this TGA carried out extensive modelling of the environments in various spaces and explored means by which such design criteria could be achieved with the minimum impact on the historic fabric and the aesthetic qualities of the buildings.

Bourne Estate

Overall Housing Design Awards 2018 and also Commended in the Royal Town Planning Institute ‘Excellence in Planning to Deliver Homes – large schemes category’.

The regeneration of the Bourne Estate in Holborn, London, was awarded Overall Winner and the NHS 70 Winner of the Housing Design Awards 2018.

TGA had undertaken detailed options and studies to assess the most efficient means of energy generation with central plant being considered. The adaption and extension of some existing district heating schemes was also considered to maximise the application of combined heat and power technology and to reduce the carbon emissions from both new and existing stock.

Hitachi Rail Europe

Wins ‘North East Project of the Year’ and ‘Regeneration’ at the RICS Awards.

TGA Consulting Engineers were commissioned by Merchant Place Developments to design the mechanical and electrical engineering services for this £75m project, including the £32m new assembly building.

This has involved significant liaison between TGA, Hitachi Rail Europe and specialist suppliers of equipment which will be installed and operated within the factory building.

TGA have also been responsible for the development of the services infrastructure both to the Hitachi Rail site (including power supplies for the building and for the test track, the latter at 132kV) and the wider Merchant Park site.

Premier Inn Newcastle Co-op

Winner of the ‘Regeneration’ award 2017 by Constructing Excellence.

TGA were engaged by Interserve Developments and Construction to act as M&E Consulting Engineers for the £17m renovation and conversion of the former Co-operative Department Store and Headquarters on Newgate Street in Newcastle. The development included converting the existing building into a new Premier Inn Hotel along with a series of restaurant and shop units at ground floor including Turtle Bay and Cabana. A gymnasium was also provided at basement level. The design and construction teams were challenged by Premier Inn to meet current Building Regulation standards with respect to carbon emissions. This was achieved through careful design and selection of equipment alongside the supply chain.


BIM Level 2

TGA developed an internal management system fully in accordance with PAS 1192-2 Level 2. This followed an 18-month 4 Stage Accreditation process with QA International that was backed by UKAS (UK Accreditation Service). With support from BIMCert and Growth Accelerator, the Staged Certification allowed TGA to introduce systems that were specific to the services provided and ultimately, resulted in a certification scheme that actually provided useable systems and processes rather than ‘check boxes’.

The staged scheme consisted of four separate certificated stages, with each one having to be passed prior to moving to the next. An outline of the scheme is below: –

Stage 1 – Management Manual, Capability Assessment & Training Plans

Stage 2 – Operating Procedures & Operational Records

Stage 3 – Project Application & Project Evidence

Stage 4 – Final Assessment, Procedures / Activities & Certification

TGA have now adopted the management system as part of the ISO9001 Accreditation and therefore no longer hold a specific ‘BIM’ accreditation.

The wide-ranging benefits of ISO 9001 are why the quality management standard has been implemented by millions of organisations across the globe.

Maintaining a quality-led philosophy is exactly why ISO 9001 is stipulated within tenders. With buying authorities seeking to establish that their suppliers are reliable, asking for an internationally recognised standard eliminates the need to assess every single potential supplier. Having an ISO 9001 certificate saves you work too, allowing you to skip many lengthy pre-qualification questions.

ISO 14001 enables organisations of all sizes to benefit from new business opportunities and demonstrate their environmental credentials. Recognised internationally, the standard provides a straight-forward approach to using less energy resource and reducing waste.

By becoming more resource efficient, you will save money from reducing waste and usage. According to research by Defra, this resulted in a payback period from implementation in just 3 months.

In fact, being ‘green’ has never made more sense, with ISO 14001 certification being a proven business winner. With David Cameron stating he wants to be part of the “greenest government ever”, this has led to the standard often being stipulated in tenders. It’s also often a requirement within supply chains.

ACE represents the business interests of its members and the consultancy and engineering industry in the UK. It is the leading business association in this sector, counting around 650 firms – large and small, operating across many different disciplines, as its members.

Our members are some of the world’s leading consultancy and engineering businesses. Renowned for the quality and excellence of their work, they regularly win awards for engineering innovation and achievement.

Participating in the CHAS scheme helps both suppliers and buyers. Suppliers show compliance with important parts of health and safety law (the core criteria described in the CDM regulations). On achieving compliance a supplier is approved to work for all of CHAS’ buyers. (Some Buyers may require “Accredited” Status) Inconsistencies are reduced where some suppliers may be judged compliant by one buyer but not another. CHAS gives guidance on any weaknesses in a supplier’s safety management, including how they can improve. Being a CHAS supplier or buyer saves both time and resources.


A Low Carbon Consultant Design Specialist can:

  • Confirmin Part L2A Compliance against all 5 compliance Criteria
  • Advise on energy efficiency and conservation.
  • Advise on and design low carbon and renewable technologies.
  • Use passive design technologies to make the best use of shade and natural ventilation.
  • Deliver the information needed to manage the building effectively and ensure that it continues to perform to its design intent after handover.