The Water Building Design course is a civil engineering building design course in the field of water, especially drainage and irrigation. In this course, students are given design assignments using an assisted lecture system. There are two independently structured tasks regarding the settlement drainage master plan and irrigation area planning. The task of designing residential drainage buildings is to start from creating a drainage network system, calculating drainage time, calculating the area of the cutoff area, calculating the runoff coefficient to obtain the discharge, dimensions and depiction of the required channel work and water structures. The tasks of designing irrigation buildings include: irrigation network systems and patterns, irrigation demand discharge, channel dimensions, and depiction of channel work and required auxiliary buildings. Assistance is carried out face to face, either directly or online. Assessments are carried out to determine the achievement of course learning outcomes through structured assignment reports provided.