T he mosque is a multi-functional place for Muslims. Apart from being a means of worship for Muslims, educational facilities and social facilities can also be carried out in mosques. Therefore, the design of the Great Mosque of Singkawang City wants to realize the concept of being a center for Islamic development where the function of this great mosque will be equipped with Islamic center facilities, equipped with facilities that have local levels and are oriented towards direct da'wah development operations. The purpose of designing the Great Mosque of Singkawang is as a place of worship for Muslims, a center of worship with the standards of a great mosque in accordance with applicable provisions and regulations, as well as being able to serve worship activities for the people of Singkawang City. In addition, making the Singkawang Great Mosque an icon for the city of Singkawang and realizing the design of the Great Mosque of Singkawang City that is synergistic with its environment, which is able to represent locality values, social, cultural, environmental and economic conditions of the people of Singkawang City.