The architecture of the 13th century Anatolian Seljuk Period expresses a privileged process witnessing the formation of a new tradition. Crown doors, which have become a characteristic feature of architecture, are an important element of fiction where design power is combined with excellent craftsmanship for each building element. Constructed by the mighty vizier of the period, sahibinden Ata Fahreddin Ali, the portal of Konya Sahip Ata Mosque, which left its mark on the second half of the 13th century, is still today. It is a rare work that draws attention with its fountains that can come in good condition. In our research, which we started with the aim of transferring cultural continuity and this rich heritage to future generations, the decoration of the Sabils of the Mülk Ata Social Complex Mosque was examined in terms of technique, material, motif, composition, style, meaning and symbol. It is aimed to be a resource for today and next generations by documenting with photography, measurement and millimetric drawing. One of the most magnificent structures of the Anatolian Seljuk period with its design, decoration and writing program, the portal of the Sahip Ata Mosque is also the pioneer of the double minaret facade application. The fountains of the Sahip Ata Mosque were planned and decorated symmetrically on the minaret base rising from two sides, almost like a small portal made of monolithic stone. As a result, the decoration of the portal of the Sahip At Mosque, the fountain, consists of writing, geometric and rumi motifs that have the characteristic features of the period. It has been determined that the script and geometric ornaments dominate the rumi motifs and that there are some differences between the two fountains in terms of architectural details and decoration.