Sustainability Consultancy – Meet the Team

Sustainability Consultancy – Meet the Team

We are very pleased to introduce you to the Hannan Sustainability team.

As Building Services Engineering Consultants sustainability has always featured at the heart of our design process.

Hannan provides a wide range of sustainability consulting services to support our clients to shape and define strategies to achieve site specific and corporate Sustainability targets including:

  • Net Zero Carbon
  • NABERS UK & Energy Performance Modelling
  • Building Certification
  • LCA and LCC Studies.
Name: Tim Bell
Role: Head of Sustainability
How did you end up working in sustainability?

A long time ago, I worked with my Dad in California, where we designed and built bespoke homes. It really piqued my interest in construction. From there I took an MSc In Construction Management and Economics at UCL, where sustainability was touched on, before moving into consultancy working on Life cycle costing projects. It just happened one day that I supported a project team on a BREEAM project and found the various subject areas to be very interesting. From there I haven’t really looked back, and my focus was fixed firmly on sustainability.

What do you enjoy the most about your job and what do you find the most challenging? 

The variety of project types makes the job interesting and certainly as more of our clients are looking at Net Zero and decarbonisation there is a wider variety of sustainability topics to focus on rather than purely certification. This allows us to add value. Managing several projects can be challenging whilst ensuring that what Hannan provides to our clients is of the very highest quality.

How has the industry changed since you first started your career?

Well it’s changed dramatically. I remember sitting in meetings 20 years ago and being asked ‘Sustaina…what?’ Now obviously, climate change, decarbonisation and net zero are everyday terms and key drivers for the built environment. Importantly all these issues are being discussed, taught in schools, highlighted in the media and the younger generation, on the whole, are much more aware of the situation we find ourselves in and keen to make a difference. The built environment is now defined by sustainability and developers and investors are motivated to deliver and invest in ‘green’ assets as tenants become more particular about the buildings they want to work in.

What changes do you foresee for the next 20 years?

Embracing innovation, sustainable supply chains and procurement, the continued rise of the circular economy and more focus on the economic and social impacts of sustainability such as community engagement. As the climate crisis becomes increasingly complex, customers will also be more cautious about their own carbon footprint and will question if a product is sustainably sourced or produced.

What do you enjoy doing in your spare time?

I try to live a relatively active lifestyle and have recently taken up Padel and play as often as my knees allow. I’ve basically got all the gear and no idea! Just being with my wife Sarah and daughter Esme. Long walks in Formby Pinewoods and on the beach with Indy our dog. And got to put it out there, I’m a lifelong LFC supporter so try to get to Anfield when I can and having grown up in California, I also have a great passion for baseball and American Football. 

Name: Charlotte Becker
Role: Graduate Sustainability Engineer
Which training route did you take?

I completed a BSc (hons) in Environmental Science and an MSc in Environmental Sustainability and Green Technology both at Keele University, before spending a year gaining industry experience working in environmental consultancy.

What do you enjoy about your job?

I enjoy the fact that I am able to apply my passion for the environment to projects that can produce real-world positive impacts such as preventing greenhouse gas emissions or making improvements to the local environment which can be very rewarding. I also enjoy the wide variety of tasks and projects I get to work on in the role of Graduate Sustainability Engineer, as well as being able to play a part in the transition towards sustainable development that encompasses all aspects of sustainability from material efficiency to ecological enhancement. 

What do you enjoy about working at Hannan Associates?

I enjoy the friendly and supportive atmosphere at Hannan Associates and being able to work with, and learn from, a range of different people who are very knowledgeable in their respective disciplines. I also enjoy the variety of training opportunities I have been given since working at Hannan Associates which have enabled me to develop my skills and understanding and have put me on a path to becoming a recognised sustainability professional.

What do you enjoying doing in your spare time?

I like to spend much of my spare time with my family and friends as well as staying active by going running and doing gym classes.

Name: Matt Dalley
Role: Senior Energy & Sustainability Consultant
How did you end up working in sustainability?

The Kyoto Protocol was signed in December 1997. In 1998, at the age of 16, I applied to study A-Levels in Environmental Science, Geography and Geology.  This led me to study for a degree in Environmental Protection and then read for an MSc in Sustainable Development.

What do you enjoy the most about your job and what do you find the most challenging? 

I enjoy seeing the evolution of sustainable building design and the finished building.
The challenge is changing the existing mindset of designers and contractors towards sustainability.

How has the industry changed since you first started your career?

Sustainability has gone from being a fringe concept to a core requirement. Clients and tenants now understand the climate issues and expect a high level of sustainability in their buildings.

What changes do you foresee for the next 20 years?

The move to zero carbon and the use of operational energy models / in-use energy data will become a driving factor in building design.

Any advice for people looking at starting a career in building services engineering?

A career in sustainability can be rewarding, but there are still many challenges. As with many things, the barrier of cost requires a compromise between sustainability and affordability.

What do you enjoy doing in your spare time?

Hiking/camping /DIY.

Hannan Sustainability Services


  • Sustainability Strategy (Building and/or portfolio level)
  • Net Zero Carbon Pathways
  • Bespoke Sustainability Framework & KPI development
  • Planning – Energy & Sustainability Reports
  • ESG and Sustainability Policy development 


Certification & Assessment

  • BREEAM Communities
  • CEEQUAL / BREEAM Infrastructure
  • LEED
  • WELL – Early stage advice
  • GRESB Consultancy
  • EPC


  • Operational Energy Modelling
  • Passive Design Analysis
  • Low Zero Carbon – Renewables Feasibility Studies
  • Embodied Carbon Assessments

Additional Services

  • Indoor Air Quality Plans
  • SBTI Consultancy Services
  • Life Cycle Costing Assessments
Please reach out to our team to discuss how we can support your organisation on your sustainability journey.
Tim Bell

Tim Bell

Head of Sustainability

Email: [email protected]
Phone: +44(0)161 337 2200

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