It contained a mosque, a school for children, a fountain, a medresse consisting of sixteen rooms, a guesthouse of eight rooms, a stable, a larder, a store house and a caravanserai. It now consists of five sections: mosque, madrasah (theological school attached to a mosque), the tomb of Sinaneddin Yusuf Paşa and the tomb of İbrahim Ethem Paşa.

Mosque

The diameter of the dome of the mosque is 10 m. There are two huge minarets having one balcony (sherefe) each. The decorative niche (mihrab) and the marble pulpit (mimber) reflect the formats of the Classical Ottoman Architecture. It is one of the few premier structures preserving the traces of the past on the Anatolian side of Istanbul. While the structure offers a distinct aesthetic view with a porch that covers the last prayer section, there is a twenty-cornered fountain located on the seaward side of the mosque.

Other Structures

The other sections of the mosque could not be reached until today. The Madrasah (religious school) is composed of 16 rooms that is being used as a health clinic today, the tomb of the two sons of Mihrimah Sultan, the tomb of the Osman Aga, son of Rustem Pasa-Grand (Grand Viziers of the Ottoman Empire), and the tomb of Sinan Pasa,  Admirals of the Navy  (Kaptan-ı Derya) are the structures that have stood until today. The other building in the complex is a Quranic primary school (Sıbyan Mektebi), which consisted of a domed porch and classroom. The tabhane (hostel) disappeared during the fire in 1772 and the inn and kitchen have also been completely cleared away.

Its construction was continued from 1562 to1565 and it had a a large amount of damage during an earthquake in 1719. The complex is composed of a large mosque, madrasah (theological school attached to a mosque), Ottoman elementary-primary school (Sıbyan Mektebi), tomb, bath and bazaar.

Mosque

The diameter of the dome of the mosque is 20 meters, and the height is 35 meters. It has an area of approximately 1000 square meters in the middle of the mosque. It has a rectangular-shaped marble pulpit (minber), and the stained glass of the windows strengthen the aesthetic appeal of the mosque. It has only one minaret with a single sherefe (minaret balcony), and that falls outside of the profile of the Sultan Mosques which were built by the architect Sinan. In 1719, the upper part of the minaret collapsed during an earthquake and was rebuilt. After discovering the extnet of the destruction of the domes in this earthquake, it is doubtful that central dome with many windows was rebuilt in a way of consistent with its original character.

Other Buildings

A building with covered by three domes in the complex is called the Ottoman elementary-primary school (Sıbyan Mektebi). The building just next to it is the tomb of Güzel Ahmet Paşa. In the courtyard of the complex there is a marble fountain.  The inner courtyard consists of 19 rooms and two eyvans, a vaulted room with one side open to a courtyard. There are twin baths (çifte hamam) that were active until the first quarter of the 1900s.

In the complex there was a madrasah and bazaar that do not exist today. Some of the 63 shops in the bazaar are located near the northern wall of the courtyard.