Is Passive House Enough? Pei Lee on Truly Sustainable Architecture

Posted on 24th August, 2026

What makes a building genuinely sustainable and is reducing energy use enough? We sit down with Pei Lee, Architect, Certified Passivhaus Designer and Sustainability Lead at Oran Architecture, to discuss Passive House design, building performance and the wider meaning of sustainability in architecture.

 

Check out the video HERE

 

Pei explores the relationship between energy efficiency, materials, adaptability and longevity, and asks whether our existing buildings may be just as important as the new ones we create.

 

We also discuss the challenges of upgrading Scotland’s traditional buildings, the environmental cost of green technologies and whether sustainable design risks becoming unaffordable.