[en] This paper contains the results of the monitoring program for Engelsby, which consists of two eight-storey buildings with five apartments on each floor, making a total of 40 apartments per building. The monitoring started spring 1999 and will continue until May 2000. The monitoring contains hourly data for the temperatures in 18 apartments, the relative humidity in 14 apartments and the climatic data. Heat allocation meters have been set up on the radiators in 15 selected apartments and has been monitored periodically. Also the gains from solar collectors on the rooftop of one of the buildings in Engelsby, have been monitored periodically. The daylight levels inside some selected apartments will be measured in May 2000, where also a questionnaire will be given to the tenants and then evaluated. (au)