One of the elements of the ‘SER energy agreement’ concluded by the Netherlands Social and Economic Council (SER) is concerned with energy efficiency in the current private housing stock. Over the past few decades there have been many programmes in this area, and a number of measures have certainly been implemented. To say that these have been overwhelmingly successful in securing the Dutch government’s climate policy targets for the built environment would be an exaggeration, though. The pace of change has been too slow. The Netherlands Society for Nature and Environment (Natuur & Milieu) asked CE Delft to estimate the impact of a package of measures for improving the energy performance of existing dwellings, comprising incentives up to the year 2020 and an obligatory label C or better thereafter. The data in this brief report are derived largely from the dashboard model ‘New instruments for the existing housing stock’ developed by CE Delft in collaboration with ECN.