On average, we spend 90% of our time indoor particularly at work and a healthy work space is essential to that feeling of wellbeing. In a typical building, lighting accounts for up to 40% of energy consumption. Allowing more natural light to penetrate the building and controlling both the light and heat components of power consumption, will result in significant reductions. However, using natural light doesn´t come without some issues. Glare, overheating, variability and privacy issues can all cause problems. Daylight is a basic human need, which is highlighted by the provision of transparent and translucent surfaces to all occupied spaces that we see around us. In many cases, the drive to create healthier, more occupant-conscious buildings works hand in hand with the requirement for greater energy efficiency. This article presents illumination of indoor workspace using daylight lighting. Measured values were compared with values calculated by simulation program Velux Daylight Visualizer 3.