The research project ZenN, Nearly Zero Energy Neighbourhoods, aims to reduce energy use in existing buildings and neighbourhoods. The residential areas that are participating in the project and in conjunction with the renovation of these areas a number of specific measures will be implemented.

The three main challenges in connection with the near-zero renovation of existing buildings faced by the ZenN project are: 1) Technical challenges, 2) Financial challenges and 3) Property structure challenges.

The project's goals are to: 1) demonstrate the feasibility of innovative low energy renovation processes for buildings at the neighbourhood scale, 2) identify, optimize and disseminate the most promising management and funding methods to facilitate large-scale implementation, 3) develop, improve and launch ambitious replication plans at several scales (local, regional etc.).