What is sectional completion? Where the construction contract splits the works into sections or parts, usually to be started at different times, there will be multiple completion dates set by the employer in respect of those different parts of the works. This is known as sectional completion. Advantages and disadvantages of sectional completion Sectional completion is to the employer’s advantage in that it allows it to use parts of the development earlier than it could if it had to wait for the whole development to be completed, because in that case, the contractor would continue to have possession of and occupy the whole site until all the works were completed. For example, in a residential development, this would mean that the employer can begin showing and selling the units as they are completed, rather than having to wait for the whole development to be finished. Sectional completion can therefore allow the employer to begin recouping some of its build costs earlier. Sectional completion can also be useful in a refurbishment project, because it can allow occupiers to be decanted