Bennett Freehill to showcase Passivhaus excellence at UK & Ireland Passivhaus Conference 2025

Bennett Freehill’s position at the forefront of sustainable design and Passivhaus excellence will be showcased prominently at the UK & Ireland Passivhaus Conference, taking place this week from 7-8 October at the ICC Belfast.

Cormac Freehill will deliver two keynote presentations that demonstrate our firm’s deep expertise in delivering complex, high-performance sustainable buildings.

The first presentation will focus on the innovative MEP systems and Passivhaus design approach behind Weavers’ Hall student accommodation and the second will spotlight the redevelopment of DAERA Greenmount and Loughry College Campus’. The pioneering SWC Erne Campus will also be showcased at the conference.

These presentations underscore Bennett Freehill’s leadership in sustainable design, particularly. Our track record of delivering Ireland’s largest Passivhaus projects, combined with our ability to navigate the complex technical challenges of retrofit and new-build Passivhaus developments, positions us as the go-to consultancy for organisations committed to achieving net-zero and beyond.

The conference platform provides an opportunity to share our learnings and innovations with the wider Passivhaus community, reinforcing our commitment to advancing sustainable building practices across the UK and Ireland.

Read more about our Passivhaus and NZEB expertise.

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Paul O'Neill

MIET CEng MEng

Paul joined Bennett Freehill in late-2021 as part of the organisations drive towards technical excellence, an employee-focused culture, strategic growth and NZEB focus. 

A Chartered Engineer with 14 years’ experience in the construction and electrical industries, Paul has particular specialisms in electrical engineering, conservation, power generation and vertical transportation having worked on projects in the education, healthcare, hotels and office sectors. 

As electrical engineering design lead, Paul is responsible for technical delivery and project responsibility related to electrical engineering, and more critically, directing technical, quality and standards within the engineering teams.

Paul brings his passion for technical quality, buildability, progressivity and efficiency to the Bennett Freehill team.

Aaron McCarthy

MCIBSE CEng BEng

Aaron is a Chartered Engineer who specialises in sustainability and low carbon design, with detailed knowledge of passive design techniques and thermal modelling procedures.

Aaron joined Bennett Freehill in mid-2021, having previously gained 10 years’ experience as an Energy and Building Services design engineer within leading multi-national building services practices. Aaron brings extensive experience in managing and delivering large scale multi-disciplinary projects and has a wealth of experience in MEP Project Management.

Aaron is responsible for client liaison, technical delivery and management of design teams to ensure we meet our clients aspirations.

Aaron brings his passion and drive for successful project delivery through collaboration with clients and design teams.

In May 2022 Aaron was appointed as Partner.

Cormac Freehill

MCIBSE MIET CEng MSc BEng

A Chartered Building Services Engineer with over 15 years’ experience working with some of the UK’s foremost engineering companies, Cormac has been pivotal to the successful award and delivery of multi-million pound projects since being appointed to the role of Managing Director in June 2020 and rebranding the business as Bennett Freehill.

Cormac brings a new vision, new energy and fresh leadership to the team and is responsible for the strategic growth and development of the business, through supporting and undertaking marketing activities, and the training and development of our technically accomplished staff.  In the role of design team leader and client liaison Cormac ensures that the team delivers pioneering, pragmatic MEP design excellence for our clients. 

Cormac specialises in Passivhaus and Nearly Zero-Energy Building (NZEB) construction and is passionate about, and professionally skilled in, Renewable Energy Systems, Energy, Procurement, Design Management and Consulting Engineering.

Cormac Freehill

MCIBSE MIET CEng MSc BEng

A Chartered Building Services Engineer with over 15 years’ experience working with some of the UK’s foremost engineering companies, Cormac has been pivotal to the successful award and delivery of multi-million pound projects since being appointed to the role of Managing Director in June 2020 and rebranding the business as Bennett Freehill.

Cormac brings a new vision, new energy and fresh leadership to the team and is responsible for the strategic growth and development of the business, through supporting and undertaking marketing activities, and the training and development of our technically accomplished staff.  In the role of design team leader and client liaison Cormac ensures that the team delivers pioneering, pragmatic MEP design excellence for our clients. 

Cormac specialises in Passivhaus and Nearly Zero-Energy Building (NZEB) construction and is passionate about, and professionally skilled in, Renewable Energy Systems, Energy, Procurement, Design Management and Consulting Engineering.