The mosque is a work of Mimar Sinan, the chief Ottoman architect who served three consecutive sultans.
The name 'Yeni Cuma' translates to 'New Friday' in Turkish.
It is situated on an ancient site that previously hosted a Byzantine-era church.
The original social complex (külliye) was designed to provide infrastructure for travelers and the local poor.
The exterior stone construction is characteristic of Sinan's work, prioritizing structural stability in an earthquake-prone zone.
The Yeni Cuma Camii, also known as the Pertev Mehmet Paşa Mosque, is a 16th-century Ottoman structure located in the Karabaş neighborhood of İzmit. Commissioned by Pertev Mehmet Paşa, a vizier under Sultan Selim II, the complex was designed by the renowned imperial architect Mimar Sinan and completed in 1579. The site is historically significant for being built over the foundations of a medieval church. The mosque features a classic Sinan-style central dome supported by semi-domes and stone masonry. The broader complex originally included a library, a soup kitchen, and a caravanserai, though most of these ancillary structures have been lost over time. It remains a functional house of worship serving the local İzmit community. The mosque has undergone several restorations to mitigate damage caused by the region's high seismic activity, most notably following the 1999 earthquake. It stands as one of the most prominent examples of Classical Ottoman architecture in the Kocaeli province.
From the lower park area across the street to capture the full silhouette of the dome and minaret.
Visit during the shoulder hours between daily prayers to ensure the interior is quiet.
Take time to examine the exterior stone masonry, which showcases typical 16th-century Ottoman craftsmanship.
Respect the ongoing religious services by maintaining a quiet demeanor while observing the architecture.
Avoid entering or taking photographs of congregants during active prayer times.
Visitors should dress modestly; shoulders and knees must be covered. Women should wear a headscarf. Remove shoes before entering the carpeted prayer area.
