The Hadim Ibrahim Pasha Mosque, Silivrikapi

This is an example of the first stage of single-domed mosques in which Sinan managed to widen the interior space by adding two buttresses to each side wall. It prefigures the octagonal based dome plan Sinan was later to realise. The smooth passage from the walls to the dome is ensured by trompes invisible from the outside. This mosque’s plan bears a striking resemblance to that of the Bali pasha Mosque, the dates of which are not clearly established.