Numerous investigations have shown that large fractions of the population experience reduced health, comfort and productivity (a bad quality of life) when working in certain office buildings (Bullinger et al., 1999; Engelhart et al.). Both building related exposures (described by indoor climate and functional and aesthetic design) and psychological stress-factors related to load and organisation of the work of occupants may contribute to the problems. There is a need for an assessment method for office buildings that includes measures of all the factors, which may have an impact on the occupant's health, comfort and productivity. and is sensitive, reliable and valid. Furthermore, the instrument must fulfil certain demands, such as being easy to administrate, time economic, and easy to understand for the subjects, criteria which few existing forms meet. The present instrument, a discomfort form for use in work environments, was developed with the aim that it may be used in ordinary office work places, covering various aspects of complaints related to the indoor environment.