Located merely 1.7 km from Cagaloglu Hamami Public Bath, the comfortable The Old Ottoman Castle Aparthotel Istanbul provides guests with luggage storage and a restaurant. The 3-star recently renovated aparthotel features air-conditioned rooms, currency exchange and a lift in European Side with Istanbul's old center, with classic sights like opulent Topkapı Palace, the Blue Mosque, and Hagia Sophia, a mosque famed for its Byzantine mosaics.

This Istanbul hotel has a prime setting just 13 minutes' walk from the 85-metre-tall fire-watch Beyazit Tower, while natural sights like the historical urban Gulhane Park are approximately a 20-minute walk away. There is the Holy mosque "Hagia Sophia Museum" only 1.8 km from The Castle Istanbul. The accommodation is a short way from Istanbul Photography Museum, while Vezneciler-İstanbul Üniversitesi tube station lies about a 15-minute stroll away. The nearest bus stop is Kumkapi, located a mere 150 metres away, and Sirkeci train station is 2.2 km away.

The Old Ottoman Castle Aparthotel has 14 rooms, comprising a balcony and a dining area. A flat-screen TV with satellite channels, along with tea and coffee-making facilities, are offered. Furnished with a writing desk, they also have sound-proofed windows. Featuring comforts such as a hair dryer and bath sheets, the private bathrooms are fitted with a walk-in shower and a separate toilet.

Old castle restaurant is an ideal place to enjoy Turkish dishes and views of the city. The rooftop bar is ideal for a relaxing drink. It also welcomes guests with complimentary wireless internet and a happy hour.