The nature of work has changed and office designers are striving to find the ideal workplace design that meets the needs of knowledge workers. According to Thompson and Kay (2008) the issue of productivity is becoming of key interest in all sectors. In recent years, firms have begun to realise that a workplace environment that has been well designed is more likely to attract the highest calibre of worker and reduce staff attrition. (Gensler, 2005). A poorly-designed workplace can increase stress levels and negatively affect performance. As many as one- fifth of workplaces in the UK do not provide sufficient work place environments, and that at least one quarter of staff in the UK logged ‘serious’ complaints about factors such as poor layout, furniture, temperature and noise, among others (Myerson et al, 2011). Overall, British businesses are still considerably behind in creating workplaces that optimise employee satisfaction. (Arup, 2011). Improved workplace design can lead to a productivity increase Gensler (2005) and Bootle and Kalyan (2002) agree that billions of pounds are wasted each year due to the unproductive layout and design of some offices. There is a clear connection between the work environments and office users' productivity within the workplace. Most studies include the components of furniture, noise, lighting, temperature and spatial arrangements when considering that which affects productivity (Hameed and Amjad, 2009). However, there is no clear consensus as to which factors predominate. Employees of different generations respond differently to how their workplace environment is designed (Myerson et al, 2010). Almost 50% of today’s economy is knowledge-based and more workers are expected to be flexible, creative and communicative, (Greene and Myerson, 2011). The creation of work environments that result in satisfied and productive knowledge workers and end users requires information about user preferences concerning their work environments, and as the nature of work is changing, there is a need for updated research within this subject.

Method: This paper will be based on research carried out on knowledge workers in 7 substantial companies within London. Results: Some results are already known and these include: employees are most productive when under pressure and in a buzzy environment; colleagues, design of office and quality of IT are the greatest factors that make employees unproductive.