Juma Mosque Khoja Ahror Vali (Djami Mosque) Juma Mosque Khoja Ahror Vali is a basis of the ensemble Registan which is located near Chorsu square. It is a unique Friday mosque in Tashkent of courtyard type among existed ones in Central Asia in times of late Middle Ages. The main building is a cubic volume blocked by a dome with four windows in a low drum. The eastern wall which is directed into the yard is cut through by a big arch. The dome is formed on sphero-conic sails. The mosque is represented by form of an extended rectangle.
The basis of the mosque was put in the IXth century, followed by the Arab conquest of ancient Tashkent, in those times it was called by Chach. Ubaydulla Khoja Ahror arrived to Tashkent in 1432, a famous public figure of the Timurid era. Khoja Ahror ordered to erect a considerable Friday mosque and madrasah in ancient Tashkent mahalla Gulbazar. So, on the old basis which remained from the first Tashkent mosque of Yahya ibn Asad period, in the middle of the XVth century appeared a peculiar cube with a dome and with an open arch overlapping on the east region..
The considerable damage of the main mosque was caused by the strongest earthquake in 1868. At that time the cathedral mosque stopped working for twenty years. In 1888 the mosque was restored on means of the Russian emperor Alexander III so was named as "Tsar's mosque". Notably, it is the third-largest Friday mosque in Uzbekistan. It yields only to Bibi-Khanym in Samarkand and Kalyan in Bukhara.
In due time it was possible to see a cube of Juma Mosque Khoja Ahror Vali all around, and especially – from well-known Chorsu bazaar in Tashkent. Nowadays the architectural complex which surrounded Juma Mosque Khoja Ahror Vali is almost totally destroyed. The restored building of Kukeldash madrasah and a dome of a mahalla Gulbazar mosque has only remained.