Sogukkuyu, according to the current administrative division of Ankara Province, is a village in the district of Nallihan settlement. The tomb is located in the southwest of the village, on a sloped land. It was built in a cruciform plan scheme and is covered by a single dome. Corner transitions are shaped by pendentives. Interior scheme was also reflected in the exterior mass. The material of the main mass is rough, nibbled stone. Switch systems and bricks also were used at the cover. The exact date of the construction is unknown, but the plan and its architectural features reflect the charecteristics of the transition period. This situation may reveal that the tomb was constructed at the end of the 14th or at the beginning of the 15th century. Its current situation suggests that since it lost its functioning, it has been neglected for a long time, though later it was used as a mosque after partial repairs and refurbishment. When existing tombs in Nallihan are taken into account it could be deduced that the Sogukkuyu tomb followed the tradition of Hodja Ahmed Yasawi, Haci Bektas Veil, Taptuk Emre, Yunus Emre and Mevlana and could belong to the sages that illuminated Anotolia such as Bacim. Sultan, Sheikh Omar, Sheikh Jafar Sadik and Hasan Dede. Due to the damage caused by natural ways and by human factors it has become almost demolished. Up to now the subject has not been investigated by any research, but this article analyzes its background, architecture, materials and decorative features in detail and in terms of the place and importance in the history of the Anatolian Turkish architecture. Our expectation is that experts and institutions restore those buildings as soon as possible to ensure the heritage to future generations.