Logistics and material delivery are important aspects in a building project where it has direct impact on the workflow and production schedule. Research on this subject has studied where one sees great opportunities for improvement. The research says that the delivery precision, construction site lay out plan and the productivity can be managed more efficiently and as a result canreduce construction costs up to 25-30%. This degree project examines and compares two building projects in Eskilstuna, one conversion (Högvakten 1) and a new construction (Kv. näven). The basis for the improvement work is of Toyota's production philosophy that has been studied and also known asLean production where great importance is put on streamlining production by removing unnecessary work that does not increase added value of the end product. Examination of the construction site plan for each project and interviews was carried out by internal/external staff to be able to create a better understanding of the different workplaces. To study productivity at the workplaces fieldstudies were done through taking time of different work tasks that were divided into different categories. This was done on two separate days for each workplace. The first occasion was when a material delivery occurred, and the second day was a day without material delivery.  Finally, a questionnaire was designed with different solutions that were developed with the help of theliterature study, the interviews and sitevisits. The survey shows what the different construction sites think about the solutions where the result is described with percentage and opinones.