What the F(Gas) do we do now?

Reducing refrigerants in the built environment – an industry perspective.

Understanding the commercial impact of F-Gas

On this page, you will find a research white paper that showcases opinions and facts from across our industry about the changing commercial and financial impact of refrigerants in our buildings.

Collated into an easy-to-digest white paper aimed at commercially-minded readers, the paper draws on conversations with developers, architects, engineers and asset managers to understand current levels of awareness around F-Gas, practical challenges, and where momentum for change is beginning to build.

Contributors include The Crown Estate, Hilson Moran, The Langham Estate, TfL Property Group and SKArating. 

With increasingly stringent regulations, evolving sustainability best practices, and heightened financial and asset scrutiny, F-Gas and forever chemicals are now critical considerations. They directly impact the environment, building compliance and asset value.

Read ‘What the F(Gas) do we do now’ to stay ahead in the conversation.

Download the full white paper

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White Paper

What the F(Gas) do we do now?

Explore how F-Gas regulation and refrigerant risk are reshaping commercial decisions across the built environment, from compliance and cost to stranded assets. Download for insight.

Why is F-Gas being phased out?

F-Gas is the most dominant synthetic refrigerant in the UK, existing as both liquid and gas in traditional HVAC systems. 

The three main reasons F-Gas is being phased out: 
  1. They are often thousands of times more potent than CO2, with incredibly high Global Warming Potential (GWP).
  2. They stay in the atmosphere for a long time, meaning once they leak, they are there for centuries.
  3. Even small leaks have a huge impact. Despite all containment measures, leaks occur operation, servicing and disposal.

Because F-Gases are so potent, legislators in Europe are strictly phasing them out. This is expected to happen in the UK very soon, in favour of natural refrigerants, such as carbon dioxide and propane.
 
The goal is to minimise the use of harmful synthetic refrigerants like F-Gases as much as possible.

Why F-Gas changes matter to asset owners 

Building services are making their way into conversations in investment decisions because:

Refrigerants are now a material investment risk. There is a growing disconnect between accelerating F‑Gas regulation and the continued specification of refrigerant-heavy systems across commercial portfolios. This means that buildings delivered or refurbished today risk becoming:

  • Partially non‑compliant within 5–7 years
  • More expensive to operate and service
  • Red-flagged in investment, refinancing or disposal processes
 

This creates unplanned capital reinvestment and erosion of asset value — regardless of original capex savings.

What we’re hearing across the industry

The following insights are drawn from conversations with industry contributors.

Why F-Gas changes matter in building design 

Refrigerants have long been treated as a purely functional part of building services, essential but largely considered ‘the default’.

That perception is rapidly shifting, as they are no longer a peripheral technical issue and now pose direct commercial and compliance risks, sitting at the intersection of design quality, regulatory compliance, operational costs, and asset value.

Key considerations for building design when working with F-Gases now include:

  1. Refrigerants as a stranding risk by design. Specifications made today could create non-compliant outcomes within a single refurbishment cycle.

  2. Building fabric optimisation first, system selection second. Too many projects start with system selection rather than first looking at the building fabric to see what natural improvements can be made.

  3. The refrigerant knowledge gap and whole-life accountability. Consultants risk being positioned as reactive rather than strategic, with specifications revisited late as regulation tightens or asset strategies change.

front cover of the 'What the F(Gas) do we do now?' white paper on lime colour background, the paper has a red cover and is stacked like a pile of paper.

Download to understand:

  • What we’re seeing in the market
  • How the industry is responding
  • What needs to change 

Further insight and reading on F-Gas phase-out

How The Crown Estate is decarbonising its assets

Retrofitting Our Reality Episode 3 cover featuring Faraby Farid against a City of London construction backdrop, promoting a live sketch session on designing heritage buildings to last another 100 years

Faraby Farid, Technical Lead for Real Estate Developments and Energy Strategy at The Crown Estate, speaks with Artus Air’s CEO, Rebecca Stewart, to explore how retrofit, system design and long-term asset thinking can help future-proof heritage buildings.

Watch or listen here

Suggested further reading

For readers looking to explore the themes discussed in more detail, the following resources provide further insight into regulation, asset risk, and refrigerant strategy across the built environment.

Regulation and policy

Asset risk and investment

Design and retrofit guidance

Refrigerants and systems

Contributors

This paper draws on insights from across the built environment sector.

  • Andrew Cooper, Managing Director, Edge APM
  • Faraby Farid, Senior Engineering Manager, The Crown Estate
  • Elina Grigoriou, Director, EG Consulting and Ska Rating Ltd
  • Richard Groves, Sustainability & Net Zero Professional,  The TfL Property Group
  • Richard Hillyard, Head of Sustainability, The Langham Estate
  • Paul Oliver, Consultant, Artus Air
  • Marie-Louise Schembri, Sustainability Director, Hilson Moran

What’s your next project?

No matter what stage your project is at, we want to hear from you. Finding a solution to your challenge is our priority.

Our Patents

This product is protected by the following patents and other pending patent applications:

  • GB 2528890
  • US 1118793
  • AU 2015295067
  • JP 7138280
  • EP 3175180
  • GB 2569943
  • US 11378284
  • AU 2018390371
  • JP 7220858
  • CN 111868391
  • EP 3714168

 

The Trademark ‘Artus’ is registered as GB 3220151.

The following designs are registered: GB 6350052 to GB 6350063 and EM 15052307-0001 to 0012