The smoke-free Hallmark Hotel & Spa Istanbul is situated near the entertainment district of Istanbul, approximately 25 minutes' walk from the cobblestone Istiklal Street. Located in close proximity to the Military Museum and Cultural Site Command, the 4-star hotel boasts American cuisine served at the onsite American-style restaurant.

The hotel is about 45 km from Istanbul Sabiha Gokcen International airport and 2.4 km from such cultural venues as Pera Museum. The Hallmark is around 500 metres from Istanbul Lutfi Kirdar Convention & Exhibition Center and a stone's throw from Osmanbey 2 underground station. There is the Storied 16th-century Suleymaniye Ottoman Mosque 4.3 km away, and Harbiye bus station is a mere 5 minutes on foot from the property. This Istanbul hotel is located within a few blocks of Macka cable car station.

The Hallmark Istanbul welcomes guests to 46 rooms fitted with ironing equipment and air conditioning as well as a flat-screen TV with satellite channels. They are appointed with wardrobes and a writing table, and also feature a mini-fridge-bar, coffee and tea making equipment. A separate toilet and a shower, along with bathrobes and towels, are provided in the bathrooms.

The daily dining options include a buffet breakfast. Guests can try lunch, usually served at one of the on-site restaurants, for example at Hallmark. There is a bar serving Italian food 100 metres away.