The department is concerned with planning and urban fields of Makkah, Madinah and the Holy Sites and all other engineering affairs which are in the interest and comfort of the pilgrims and visitors. 

In this regard, the department conducts several studies and researches related to  land use, housing, transport, facilities and services provided for the pilgrims to improve their efficiency and to participate in setting solutions for the different problems and phenomena of Hajj and Umrah. To that end, the department conducts researches and studies of the different requirements of the increasing number of pilgrims and visitors and how to provide them with  comfort and safety to perform their rituals in ease and tranquility in Makkah, Madinah, and the Holy Sites.