It is a magnificent mosque located in the center of Beykoz both with its wooden structure and with its decoration. 18 By Bostancıbaşı Mustafa Ağa. it was built in the century. The name of the mosque comes from there. The mosque, which was previously said to have been destroyed, was very well restored in 2006. The mosque has a masonry and square plan. The lectern, pulpit, interior ceiling and women's enclosure are made of wood. The mosque is a single mineral and a single honor. There is a fountain in the garden. Lord, I wish you to be pleased with those who built the mosque and made the effort, by 0n, we have realized our prayer in this mosque, may Allah accept it, God willing, on Wednesday, April 16, 2025, 12 20 beykoz6