It is located in the northwest corner of Enderun Square, which forms the third courtyard within the Topkapı Palace complex. It consists of two rooms adjacent to a long hall built on a square ground floor and a few rooms that were later added to them. Based on the information given by Tayyarzade Ata Bey, it is stated that the building was built by Yavuz Sultan Selim for the preservation of the holy relics, but the similarity with the basement floor of the Tiled Pavilion from the reign of Sultan Mehmed the Conqueror and the presence of the name of the Fâtih in some wooden works that still exist show that the building was built in his time . The building has undergone some changes over time with repairs, modifications and additions. When the sacred relics were transferred to the Ottomans, they were first placed in the Harem-i Hümâyun, but later the Sultan accepted the people who came to meet with him, the Has Room next to the sultan where the sultan rested, and the Has Room, which formed a square planned quartet with the long hall, the Has Room Pavilion and the sultan’s winter room also known structure, especially II. During the reign of Mahmud, it was completely allocated to holy relics and was called as Hırka-i Saâdet, Emânât-ı Mukaddese or Sacred Relics Department. XVII and XVIII. In the 19th century Ottoman sources, it was mentioned as Hırka-i Saâdet Odasi. At the beginning of the century, Tayyarzâde Ata called the circle with expressions such as “ridâ-yı şerif beyt-i münîfi” and “Hırka-i saâdet beyt-i mebrûkesi” (Târih, I, 93 et al.).
The Mansion Mansion, which constitutes the original of the Department of Sacred Relics, sits on a square ground floor, one of which is thought to have been used as the Hasodalılar Ward, and the others are covered with barrel vaults. From here, a forty-step ladder led to the apartment. The ground floor of the lower floor is 9.5 m from the Enderun courtyard. far below. The fringe and furrow systems of the Golden Horn façade of the building were later deteriorated and a terrace and a double-row domed colonnade and porticoes covered with cross vaults were built, so the lower floor, which was a ward, was closed and took the appearance of a basement.
The circle is approximately 23.5 × 23.5 m from the outside. in size and consists of a sofa with two parts and two rooms separated by a wide arch. Outer walls are generally 1.5 m. around, the axis walls separating the rooms and the hall are approximately 3.10 meters. The wall between the Hall and Destimâl Room is 1.90 m. and it differs from the others. The Has Room Pavilion is covered with four domes. Of these, the dome of the original Has Room (Throne Room) in the corner where the cardigan-i saâdet is located is approximately 16.70 m from the floor, the others are 15 m. is high. From Enderun Square to here, on the pediment III. It is entered through a flat arched door with the word-i tawhid with Ahmed’s line. On two marble plates placed symmetrically on the outer wall covered with tiles on both sides of the door, the words “cihan mâliki hakān-ı emced” are written on the right and “Shari’ah sâliki Sultan Ahmed” on the left. The hall is covered with two domes with a luminous lantern, which are provided with pendentives divided by a wide arch; Since there is a marble fountain with fountain in the middle of the domed unit in the front, it is called “sofa with fountain”. At the back of the hall, which reaches a width of 9 meters, its height is 44 cm. And its width is 5.40 m. There is a bench. From the floor in the middle of the front floor and showing the direction of Qibla, it is understood that this place was used as a mosque by the officials. The walls of the hall are covered with tiles up to the level of the arch stirrups. Herbal, geometric, çintemani, baklava, etc. tiles in the form of large panels of motifs XVI-XVIII. belongs to the centuries. The upper part, arch and domes of the hall are decorated with pencil work imitating tile patterns. Some items such as the Kaaba door, the golden gutter of the Kaaba, keys and Companions’ swords are exhibited here.
The first room, which is located in the east of the hall and is a reception hall where the sultan met with the landlords in Enderun, is called “arzhâne”, and it is also said that the governor called the sultan’s son as “my lion”. There are four windows in the rim of the dome that covers the space. Walls XVI-XVIII. It is covered with Iznik tiles dating back to the centuries, and in the inscription surrounding the place, 38-44. His verses were written. Today, the name-i saâdet, the step-i saâdet, the seal of life, the dendân-ı saâdet, the beard-ı sharifs, the soil of the grave and some other relics are exhibited in the archive. From a door on the southeast facing wall of the arcade, one passes to the section called the Treasure of Sacred Relics (Arms Treasure).

The room adjacent to the Arzawan is named as the Special Room, because the throne of the sultanate is located here. XVIII. It is seated on a pulley with twelve arched windows with a dome, which was raised in the 19th century and took its current form and is higher than the others, and it has a lighthouse on top of it. It is accepted that the flat was built or repaired by the masters brought from Egypt by Yavuz Sultan Selim due to the Mamluk style stalactites seen at the transition from the corners to the dome rim. Renovated in 1916