G Hub is a new-generation mixed-use project by Mar GYO, part of the Mar Yapı group, on Halkalı Avenue in Sefaköy, Küçükçekmece, fronting the E-5 highway. Located on the same site as a full-scale private hospital and within walking distance of a university and the Sefaköy metrobus stop, it is positioned as one of the city’s health-tourism hubs. The project brings together 84 medical residences of 74–86 m², designed for health travellers and patients on long-term treatment, and 79 residences of 74–83 m² for professionals and students, together with a large living and shopping area. Apartments are delivered fully furnished, and floor plans include 1+1, 1.5+1 and 2+1 layouts. Residents benefit from electronic card-controlled garage entry, stretcher access, 24/7 security, on-call health professionals and an intercom system. The residences sit above the G Hub Life Center, a two-level open-air shopping mall with restaurants, cafés, shops and a gym, offering everything from fitness to healthcare under one roof.