Copenhagen has a declared goal of becoming the world's first CO2-neutral capital by 2025, and therefore the “public urban development subsidies” in the years ahead will increasingly be channeled into energy renovation, where the "admission ticket" for the aid, in popular terms, will be to increase the existing energy label a minimum of two characters.

For the selected building it’s examined how the municipal energy goals best is met: This includes replacement of windows, exterior facade insulation, interior insulation of facades, insulation of floor constructions, technical insulation of the existing building installations, ventilation recycling and finally adding solar cells.

It’s described what incremental improvements each work entails and what challenges each work represents. Furthermore, the inner insulation is treated in more detail with respect to choice of materials, dimensions, assembly, and geographical orientation to decide whether the method safely can be applied or whether as a consequence moisture build up can be foreseen.

The thesis has shown that the energy target can be achieved by carrying out the proposed renovation and renewal works, and it’s possible to minimize the interior insulation of masonry to the top floor where the masonry is only one and a half brick thick, and the benefit thus is highest in energy terms.

The heat demand thus is reduced from 252 MWh / year to 115 MWh, which corresponds to approximately 55%.

Economically it’s viable to carry out the planned work, but with big difference in profitability measured as described in the building regulations BR2010 Sec. 7.4.1 § 1