Abstract: Work place design is one of the major determinants of employee job performance in all organization. Matching work place design with employee necessities is very essential for obtain maximum contribution of employees towards organization objectives. There for it is need to identify the relationship and the impact of workplace design towards job performance. Hence the main focus of this study was to identify the relationship between workplace design and job performance. Operational level employees in a leading garment manufacturing organization of Sri Lanka were investigated by using a sample of 90 employees. Simple random sampling method is used to select the representative sample. A self-administrated structured questionnaire was used to collect data. Correlation analysis and multiple regression analysis were used to test the research hypotheses. Study confirmed that workplace design is significantly correlated with employee job performance. Findings of the study indicate that there is a strong positive relationship between workplace design and job performance of operational level employees.