The main aim of the thesis is to propose a conceptual design for drainige of sanitary wastewater and stormwater from the settlement Klanfari. The settlement is located north of the attractive tourist destination Crikvenica, and as such, it is exposed to the increase of residents during summer season. Currently, there is no sanitary or stormwater system built in the settlement, so the wastewater is being disposed individually by local households. Therefore, current system presents a big problem not only from a ecological standpoint but also it s economic cost-effectivnes. For the purpose of creating a conceptual design, program Urbano canalis 9.1 was used. The program was used to create a situation with sewage network and hidraulic budget for both systems. Thesis begins with an introduction in which the observed location is described, as well as some of it s most importatnt features, for the purpose of creating the system. Furthermore, future project for reconstruction and building of the system, to be funded by EU fonds, that is currently being planned, is explained. Also, the conceptual design includes detailed analisis of sewage objects and devices. Thesis includes a hidraulic and statistical budget of the system, budget for the pumps for sanitary collector and list of expenses for both systems. Second part of the thesis includes grafical attachments that consist of the draft of systems situation, longitudinal section of the main collectors and other details of the system.