Low Energy Apartment Futures (LEAF) was a European-wide project aimed at improving the energy efficiency of apartment blocks. The project ran from March 2013 to March 2016 and was funded by the EU’s Intelligent Energy Europe programme and local organisations in each country.
The aim of the project was to overcome a number of key barriers to retrofitting these properties such as the limitations of Energy Performance Certificates (EPCs) and difficulties associated with buildings under multiple ownership.
During the course of the project the LEAF partners worked towards energy efficiency retrofit with 24 case study buildings across six European countries. The lessons from these case studies helped to identify the barriers and successes experienced by multi-occupancy buildings during the retrofit process.
To further support retrofit in multi-occupancy buildings LEAF developed toolkits that provide a step-by-step approach to retrofitting apartment blocks, incorporating:
- A ‘technical toolkit’ to identify appropriate energy improvements. Based on EPCs, the toolkit provides supporting information to aid decision-making. In France and the UK, the tool also enables EPCs from individual properties to be assimilated together to provide a whole-property approach, including recommendations for communal areas.
- An ‘engagement toolkit’ providing other information and guidance to progress installations such as obtaining legal agreements for communal measures, securing finance and guidance on planning permission.
The lessons and findings arising from the project have been used to produce a set of local, national and European policy recommendations. These recommendations are designed to help increase retrofit in multi-occupancy apartment buildings by reducing the barriers.
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