Seddulbahir Fortress, which was built in 1656 under the patronage of Hatice Turhan Sultan, the mother of Sultan Mehmed IV, was heavily damaged during the Battle of Çanakkale. It remained in a state of disrepair and was used as a military area until recently. After a restoration process lasting more than 25 years, the castle was opened to visitors on March 18, 2023.
The extensive academic research project, initiated in 1997 in partnership with Koç University and Istanbul Technical University, evolved into a conservation and repair project with a focus on academic studies, including detailed documentation and projects within the same institutions between 2005 and 2009. The project was recognized as a pioneering effort by ÇATAB (Çanakkale Wars Gallipoli Historical Site Presidency). The restoration and reuse practices, initiated in 2015 with the participation of the Scientific Advisory Board, were completed in 2023.
Academic Research and Restoration Project
The restoration applications, initiated in 2015, are based on three main criteria. These include reinforcing sections at risk and those showing signs of previous demolitions (such as the West and South Towers), prioritizing archaeological conservation over reconstruction to protect archaeological layers and different periods (e.g., Military Barracks), and partially reconstructing certain areas using new materials to accommodate the structure’s new use (e.g. northwest wall).
Throughout the restoration process, new information and construction techniques have come to light, leading to intervention proposals based on on-site observations and examination of archive documents. Additionally, a project developed in collaboration with KOOP Architecture and Museum Exhibition Works was selected to re-purpose the castle through an invited competition in 2016. The project aligns with the predetermined criteria set by the Scientific Advisory Board. The Seddülbahir Castle Re-use Project’s main objectives are to restore the destroyed Bab-? Kebir and create a new museum building. Historical documents and archaeological excavations at the castle’s entrance revealed the architectural remains of the main gate, Bab-? Kebir, which suffered heavy damage during World War I and no longer exists today.
Design Goals and Architectural Decisions
The design goals were to preserve and showcase the surviving ruins of the castle, revive the original main entrance, and reflect the grandeur of Bab-? Kebir. Instead of rebuilding the missing mass with the same materials, a decision was made to create a natural and lightweight silhouette that would mirror a part of Bab-? Kebir’s shape and the main wall line on which it stands. A wooden design was chosen for this purpose, distinguishing it from the original parts and allowing for easy dismantling. This transformation restored Bab-? Kebir to its monumental entrance status.
The architectural language with wooden elements was used to create a band indicating the upper level of the destroyed dendans in the East Tower and in completing the dome in the domed structure. To bridge the height difference between Bab-? Kebir and the castle courtyard, to offer a panoramic view at the entrance, and to incorporate contemporary functions, a new museum building was designed in the location of former military buildings. The outer shell of the new building was made with large blocks of limestone, the same material used in the castle’s construction, to minimize its impact on the silhouette. Additionally, a different interpretation of the original wooden beam-pistuvan system used in the castle walls was employed.
Project Info
Project Start Year: 1997
Construction Start Year: 2015
Construction Completion Year: 2023
Total Construction Area: 42,000 m2
Project Location: Seddulbahir, Canakkale
Survey, Restitution, Restoration Projects Author: Arzu Özsava?ç? (AOMTD)
Reuse Project Author: Burak Dolu (KOOP Architecture)
Scientific Advisory Board: Gülsün Tanyeli, Lucienne Thys-?enocak, Rahmi Nurhan Çelik, Feridun Ç?l?, Haluk Sesigür, Arzu Özsava?c?
Reuse Architectural Project Team: Y. Burak Dolu, Alper Karasu, Barancan Da??stan, Birsen Parlar Erkan, Dilara Öztürk, Elif Tu?ba Gürkan, Enes Pilavc?, Gamze Ye?ilda?, Koray Bayraktutan, Nurseray Sar?çay?r, Saleh Malek, Seçkin Maden
Survey, Restitution, Restoration, Archaeology, Measurement, Archive Projects Team: Lucienne Thys-?enocak, Rahmi Nurhan Çelik, Gülsün, Feridun Ç?l?, Haluk Sesigür, Arzu Özsava?c?, Deniz Özkan, Umut Almaç, Selin Gener, ?rem Nardereli, Nurdan Kuban, Günnur Çal??kan, Murat Alaboz, Günder Varinlio?lu, Arzu Öztürk, Carolyn Aslan, Bensen Ünlüo?lu, Gülay Karc?, Gün??l K?l?ç, Kemal Sümer, Senem Uyan?k, Tevfik Özlüdemir, Caner Güney, Banu Yüksel, Göksel Akkoca, Yelda Ademo?lu, Mehmet Erim, Bora Say?n, Serdar Erol, Bihter Özöner, Dursun Z. ?eker, Davut Erkan, Hasan Karata?, Ye?im Anadol, I??l Cerem Cenker, Ahmet Ersen, Marisa Laurenzi Tabasso
Interior Architecture and Display Arrangement Projects: Koop Architecture, Koruma Academy, Rabia ?engün, Aykun Haddeler, Nihan Demiral, Sezen Cezan, Tu?ba A?cabay, Betül Tu?çe ?zgi, Kübra Keskin, Aykun Haddeler, Sezen Cezan, Nihan Demiral, Hakan Ö?ütçü, Yasin Tosun, Y. Burak Dolu, Elif Tu?ba Gürkan, Gamze Ye?ilda?, Koray Bayraktutan
Construction Site Technical Team: Maksut Refik Dönmezler, Erdal Civelek, Rabia ?engün, Merve Çankaya, Enes Demirel, Özge Mutlu, Ebru Koçak, Burhan Kutucu, Ömer Can Kara, Bekir Can ?zmir, Seda Yalç?nkaya, Gizemnur Ba?, Serkan Elo?lu, Ergin Or, Zuhal Güler, Ahmet A?ar, Naz?m Soylu, Zeki ?ahbaz, Erol Bulut, Fadim Koçak, Hakan Demirarslan, Mehmet Fatih Okan, Esra Tunçer, Abdülmenaf Yaki?, Erol Usman, Erdal Aslan, Hakan Ö?ütçü, Yasin Tosun, M. Emin Alpayd?n
Control Organization: Gallipoli Historical Site Presidency of the Gallipoli Wars, Gökhan Gümü?da?, Asl?han Kervan, Ayd?n Karab?y?k, Aykan Özel, Emin Murat Özdemir, Marziye E?ki, Mehmet Akif Erdo?an, Mert Çatalba?, Mustafa Kafkas Dereli, Özge Alpayd?n, Özlem Co?kun, Serpil Sava?, Tolga Kaan Çakmak, Ümit Y?lmaz
Employer: Gallipoli Historical Site Presidency of the Gallipoli Wars
Competition Project: KOOP Architecture, Museum Exhibition Works
Landscape Project: caps.office, Mehmet Cemil Akta?, P?nar Kesim Akta?, ?eyma Kahraman, Gül?en Ayla Olgun
Lighting Design: Lightapp, Ali Ulgen, Zeycan Abay
Static Project: Arke Engineering & Architecture, Murat Alaboz
Mechanical Project: KDP Engineering, Mahmut Kaya, MNM Can Engineering, Melih Say?
Electrical Project: KDP Engineering, Selçuk Özdo?an, Nira Architecture Engineering, Handan Gürler Akçay
Infrastructure Project: Suheyla Kuru
Main Contractor: ABMA Construction Restoration
Subcontractors: Asmaz Wooden Frame Buildings, Sanlibayrak Steel, Met Construction, Fibula Architecture, Kar?nca Advertising, Temay Landscape, ERD Maritime, Sirac Electric, EF Air Conditioning, Atempo
Construction Site Management: Rabia ?engün, Merve Çankaya, Özge Mutlu
Journeyman: Vizier Hezer
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