Nusretiye Mosque Restoration

Nusretiye Mosque is located in the Beyoğlu district, in the Kılıç Ali Paşa neighborhood, on Meclis-i Mebusan Avenue, in the 139th sheet, on the 2499th island, on the 6th parcel. Although originally designed on the historic coastline of the Bosphorus and by the sea, the building has lost this characteristic over time due to the infilling carried out until the present day. Nusretiye Mosque is also known among the public as Tophane Mosque because it is situated in the Tophane district.
Nusretiye Mosque, commissioned by Sultan III. Selim, was built by Sultan Mahmud II to replace the Tophane-i Amire Arabacılar Kışlası Mosque, which burned down in the Firuzağa fire of 1823. The construction of the mosque began in 1823 and was completed in 1826, with a grand ceremony held for its inauguration. Nusretiye Mosque consists of a substructure, ground floor, and gallery floor. The substructure is not designed for worship purposes but rather to ensure the mosque, built by the seaside, has a sturdy foundation. To the west of the structure is the royal gallery, and to the east is the muezzin gallery. Additionally, adjacent to the mosque, there is a timekeeper's lodge, and in the courtyard, a fountain and ablution facility can be found.

The substructure floor is accessed through the wooden stairs in the last congregation porch of the mosque and also from under the eave of the entrance to the imperial pavilion in the outdoor area. The basement floor, with a herringbone wall structure, is covered with intersecting cross vaults. Tension iron bars connecting the arches to the piers are present.

The structural walls of the mosque are constructed using cut ashlar stones. In the last congregation section, as well as in the balconies beneath the Imperial Pavilion with eastern and western porticos, supporting columns and railings are made of Marmara marble. The floors are covered with hexagonal (şeşhane) bricks. The upper surfaces of the ashlar stones in the mosque's interior are clad with marble up to a height of 5 meters, and window and door thresholds are also made of Marmara marble. Window frames are intricately carved from Marmara marble using the baroque technique, adorned with baroque motifs.
Within the mosque's prayer area, wrought iron is used for the window railings. Brass and bronze embellishments are present at the corner areas with brass ornamentation at the pin locations. The window railings of the Imperial Pavilion use cast brass. The wooden roofs of the Imperial Pavilion and the muezzin gallery are constructed using the pitched roof technique and covered with lead. There is an entrance to the Imperial Pavilion from inside the mosque, and an external entrance with a steep staircase. The load-bearing components of the Imperial Pavilion are entirely made of oak, and all plastered surfaces are done using the "bağdadi" technique.