Recent trends in energy efficiency around the world and implementation of flexible housing are taking a big burst of development. Nanotechnology and thermal insulation materials along with photovoltaic panels will be explored in residential facilities. Needs for higher comfort and the socio-economic situation ask for research, use of eco systems and innovative solutions. The case study will be the collective residential building near the Swiss Diamond Hotel in Mother Teresa Square in Prishtina. Some of the proposed interventions will be manoeuvrings with flexible housing units, intervention on the facade with the nanotechnology insulating material as well as covering one part of the facility with photovoltaic panels. This research is based on analysing the location, facility use, orientation, surrounding site. The proposed concepts are in complete harmony with the reasonability of the investment. Applying these measures, besides economic, ecological and comfort benefits will also affect the adaptation of the building with the surrounding buildings.