The more stringent climate targets of the state of Berlin require that both the heat supply is converted to renewable energies in the next few years and that the building envelopes are ambitiously renovated to make them more energy efficient. This poses great challenges for the state and districts as well as the real estate industry. At the same time, due to the tense situation on the Berlin housing market, there is a need for regulations to protect tenants, which is why the number of milieu protection areas in Berlin's districts has risen sharply. In these areas, which already contain a relevant proportion of old buildings which are in need of refurbishment, there are additional obstacles to climate protection measures that are in line with the objectives.

At the event, we want to explain why it is necessary to ambitiously refurbish the energy efficiency of these areas, that this can also be beneficial for tenants in the medium term, and that these areas therefore even represent an opportunity for socially acceptable energy efficiency refurbishments. The districts are an important actor here — what options do they have for action to promote ambitious climate protection in these areas and beyond in neighbourhoods in general without neglecting the protection of tenants?

In the seventh edition of Wandelwecker, our morning impulse for a social and ecological metropolis, we discuss this with two proven experts:

• Jörg Zander, District Office Charlottenburg-Wilmersdorf
• Dr. Julika Weiß, Institute for Ecological Economy Research (IÖW)