The carrying quality of the building site is no doubt the new city park. It is evident from related cases around the world, that apartment buildings in this type of location with apartments overlooking a park are highly desired, as the park greatly increases the quality of living by creating a mild microclimate. Thus the building is not divided into primary and secondary apartments; they all have a direct view of the park. In order to achieve the uninterrupted view of the park, the apartments were laid out in a split lamella that is sixty meters high, the maximum height allowed by urban zoning regulations and fifteen meters deep, the maximum depth that allows good lighting for the two-sided oriented apartments. Splitting the lamella in two parts allows the sunlight in the resident’s wellness area, located on the roof of a public program volume, to be equally distributed between the morning and the afternoon. The double-sided orientation of the apartments is very important in providing an effective sustainable scheme. Due to the specifics of use, it is more difficult to adapt the apartments to technological control of energy efficiency than to the public program. One of the more important conditions for achieving highly sustainable performance is good natural ventilation, which is implemented most easily by using double-sided apartments for cross ventilation. The double-sided orientation of the apartment buildings also allows views for the residents on all sides: long and open internal views, and also creates a greater sense of spaciousness. The volume of the public program below is also designed to be in constant contact with the park. The inclination of the outer walls of the entire lower volume creates a jutting roof over the entrances around the entire edge of the building. At the same time, people do not have a sense that they are standing under a roof due to the height of the edge of the flange. Cutting and opening the volume further inside allows daylight to enter deep into the facility and also opens a path for natural ventilation on the ground floor of the public program. The incision system is designed in such a way that the natural light is dispersed throughout the entire depth of the public program volume. The ground floor of the building becomes a kind of opened covered plaza with entrances to diverse public program. A new city “loggia”.
Concept proposal for: International competition for the architecture and program planning of project K 66 in Ljubljana, Slovenia, 2010.