At Calum Duncan Architects, we are committed to low-carbon design. Calum is a Passivhaus Trust certified Passivhaus designer and will lead you through the process. We specialise in energy-efficient residential and non-residential buildings and retrofit existing buildings to the EnerPHit standard. Our approach enhances comfort while drastically reducing energy use and carbon emissions.
Passivhaus and EnerPHit
Passivhaus is a globally recognised standard for ultra-low-energy buildings, emphasising insulation, airtightness, and minimising heating demand. EnerPHit applies these principles to retrofits, achieving significant energy savings while accommodating existing structures. Scotland is now considering a Passivhaus-equivalent standard, reinforcing the importance of this approach.
Our Services
We work with clients on:
- New Builds – Designing residential and non-residential buildings to meet Passivhaus standards.
- Retrofits – Upgrading existing buildings to EnerPHit levels of efficiency.
Our Approach
We prioritise reuse, low-carbon, low toxin materials, and thoughtful design to minimise environmental impact. By integrating Passivhaus and EnerPHit principles, we future-proof buildings while exceeding current energy performance standards. We acknowledge that Passivhaus is not always the answer, but understand how to make the best choice to suit the brief.
Get in Touch
We’d love to hear from you if you’re planning a new build or retrofit and want to achieve the highest energy efficiency.