
Review of the live talk: New economic efficiency through portfolio refurbishment
As part of our live talk, together with our partners Engel & Völkers Commercial Berlin and the DENEFF (Deutsche Unternehmensinitiative Energieeffizienz e. V.), we shed light on how energy-efficient refurbishment is much more than an ecological statement today - it is a key lever for economic success.

Renovation pays off - ecologically and economically
Investing in energy efficiency not only saves up to 80 % of the final energy requirement, but can also increase the value of the property by up to 30 %. However, the approach is crucial: Sound planning, individual advice and the targeted use of state subsidies can make grants of up to 35% possible - and thus make many refurbishments economically viable in the first place.
CO₂ costs as an economic driver
A key topic of the talk was the dynamic development of CO₂ prices: Experts expect a significant increase from 2027 - a development that will increasingly make energy-efficient refurbishment an economic necessity. Legal requirements such as energy efficiency classes and CO₂ cost allocation are also increasing the pressure on owners to take action.
Refurbishment as a shared responsibility
The talk made it clear that the transformation of the building stock is a task for society as a whole. Not only owners, but also cities, administrations, investors and political decision-makers have a role to play. Together with DENEFF and Engel & Völkers Commercial Berlin, we are focusing on education, transparency and clear impetus for sustainable action.
We are happy to provide you with a compact summary of the most important key messages from the live talk. Request it here now.
We thank all participants for their great interest!

Are you interested in taking part in our talk as a guest or would you like to invite our experts? Please send us an email to: events@purpose-green.com
or
You have a property and want to talk to our experts - book a non-binding initial consultation here now.
More articles
About Purpose Green
Your property - our next project!
We look forward to hearing from you.
Purpose Green is one of the leading German climate tech companies based in Berlin, transforming the building sector with comprehensive end-to-end solutions for energy-efficient refurbishment and ESG-led asset management. Purpose Green is the only company in Germany to offer a holistic, modular, combinable approach for the real estate sector: its own Green+ portal links intelligent software solutions with specialist ESG and energy consulting as well as operational construction management.
Real estate owners, managers and institutional funds thus receive tailored support in the transformation of apartment buildings, residential and commercial buildings as well as office buildings - both at individual property and portfolio level. In this way, Purpose Green enables individual sustainability goals to be achieved efficiently, CO₂ emissions to be significantly reduced and properties to be future-proofed in terms of value retention and sustainable value appreciation.
Purpose Green was founded in 2023 by Okitonga Memba and the brothers Lucas and Lennart Christel. Backed by leading early-stage investors such as Speedinvest, Atlantic Labs and Fifth Wall, Purpose Green is driving sustainable change to decarbonize the real estate sector.