The built environment plays a significant role in global energy consumption and carbon emissions. Buildings account for over 40% of energy use and 36% of energy-related greenhouse gas emissions. While these figures highlight the scale of the challenge, they also point to a clear opportunity: thoughtful design and well-informed decisions can make a meaningful difference.
For anyone planning a new build or a renovation, this isn’t just a policy discussion -it directly affects how a building performs, how comfortable it feels to live in, and how much energy it uses over time.
The Scale of Change Ahead
Across Europe, ambitious targets have been set to reduce greenhouse gas emissions by 80–95% by 2050, compared to 1990 levels. Progress has been made, but the pace now needs to increase significantly.
This shift is already influencing how buildings are designed, upgraded, and assessed. Regulations are evolving, and expectations around energy performance are becoming more demanding.
What This Means in Practice
In practical terms, there is a growing focus on getting the fundamentals right from the outset. This includes:
- Prioritising the performance of the building fabric
- Reducing energy demand before introducing systems
- Designing with long-term durability and comfort in mind
- Taking a considered approach to upgrading existing buildings
For many projects, particularly renovations, improving what already exists can have the greatest impact. This often involves balancing performance improvements with the character and constraints of the building.
A More Informed Approach to Design
As expectations increase, so does the need for a deeper understanding of how buildings actually perform. Programmes such as the Building Performance (Energy Efficiency Design) at Technological University Dublin reflect this shift, supporting a more integrated and evidence-based approach to design.
This includes looking beyond individual elements and considering how materials, detailing, and construction methods work together as a whole.
Looking Ahead
The transition towards more sustainable buildings is ongoing, but the direction is clear. A performance-led approach – grounded in good design, careful detailing, and informed decision-making – will be key to delivering buildings that are efficient, comfortable, and built to last.
For those considering a project, whether a new build or the upgrade of an existing property, taking time to understand these aspects early on can make a significant difference to the outcome.
