Built in 1737 by Hacı Abdülaziz Ağa, the Ağa Mosque represents a refined yet understated example of 18th-century Ottoman architecture in Milas. It's also known locally as the Hasır Mosque.
The structure follows a rectangular plan, distinguished by its stone arches and skillful woodwork—a small place of worship where you'll sense the modest sensibility of the 18th century. Unlike the grandeur of earlier Beylik-era mosques (such as Firuz Bey), this reflects a period when the Ottoman Empire had spread across every corner of Anatolia, with various local benefactors building worship structures throughout the provinces.
The minaret beside the mosque was added later, built in 1885 by Mehmed Bey and his mother Refia Hanım. Mehmed Bey was descended from the Abdülaziz Ağa line—the same family, spanning 150 years, continuing to enhance the same mosque.
A small fountain graces the courtyard, and nearby you'll find examples of traditional Milas houses and old bridges. Strolling through this quarter is rewarding if you want to experience the authentic street texture of traditional Milas.