This study examines the planning and control process of refurbishment projects. The methods of achieving integration in the process is the main focus of this study. The integrative mechanisms employed by refurbishment project organisations and their influence on planning performance were analysed. The integrative mechanisms include the involvement of the key participants in decision-making, lateral relations, planning and control procedures, communication skills and knowledge and information technology. This study also highlights the influence of the complexity and uncertainty of the refurbishment projects on the integrative mechanisms used in the process. In addition, this study examined how the organisation structure of the construction firms influences the extent to which the integrative mechanisms were used in the planning and control process. Both qualitative and quantitative data were used in this study. A preliminary questionnaire survey was initially conducted, followed by semi-structured interviews with planning and control managers of refurbishment contractors. A final postal questionnaire, developed and then refined from the interview data, was distributed to the planning and control managers of refurbishment contractors. A total of 67 completed questionnaires formed the data base for the quantitative analysis. This study concludes that the choice of the integrative mechanisms to be used in the planning and control process should be based on the nature of the complexity and uncertainty of refurbishment projects, the organisation structure of construction firm and the levels of planning performance required.