In this episode of Klimatic Scale, Dash speaks with Sarah Perumalla, who leads innovation at DIEAG, a Berlin-based real estate developer that excels in high-value buildings and district projects.
Sarah takes us inside a specific 1.4 billion project where the goal from day one was full energy self-sufficiency. She shares the key challenges and how innovation was managed to keep the project on track.
👉 Listen to find out how DIEAG prefers to work with startups.
This is one of the episodes of the Urban Chapter of Klimatic Scale, where we talk to innovators in the built environment, real estate, and construction. We show the toughest challenges and the best working solutions.
1:00 Intro and cities of tomorrow
5:00 Energy self-sufficiency at district scale
9:00 Innovation challenge example: deep geothermal
12:00 25 stakeholders to the same table
17:00 How DIEAG works with startups
25:00 What startups get wrong when approaching real estate developers
P.S. This episode was recorded in August 2025.
Connect with Sarah if you want to continue the conversation!
