Maslak Pavilion is located on the Buyukdere street, between Istinye and Tarabya joints in Maslak, Istanbul. Set in a wooded park with an area of 170,000 square metres, the Maslak Royal Lodges consist of the main Kasr-ı Hümâyün, the Mabeyn-i Hümâyűn with its adjoining Conservatory, the Çadır Köşk and Paşalar Dairesi.
Commanding a magnificent view over the Bosphorus strait and set amongst green woodland, the kasırs are outstanding examples of late 19th century Ottoman architecture.
Sultan Abdülhamid II had his study and bedroom in the Kasr-ı Hümâyűn, and it was here that he was informed of his accession to the Ottoman throne.
Today this building has been restored to its original state according to the evidence of contemporary documents, memoirs and photographs, and is now open to the public. The Mabeyn-i Hümâyűn, Conservatory and the small pavilion known as the Çadır Köşk have been similarly renovated and are now used as cafıs.
The extensive gardens have been landscaped and are now named the National Sovereignty Park.