Nibiru, Romania’s first “seasonal city,” will be built in Costinești, Constanța County, stretching across an impressive 1.6 million square meters and redefining the traditional model of summer resorts.
The project blends large-scale entertainment, culture, retail and digital content infrastructure into a single urban ecosystem designed to operate at high intensity for over 150 days per year, extending the usual holiday season far beyond the summer months.
At the core of the development is Nibiru Arena, set to become the largest open-air club in the world, with a capacity of 30,000 people. Adjacent to it, a multifunctional venue for up to 150,000 spectators will host concerts, festivals, sporting events and large-format shows.
The urban layout also includes an open-air mall, a dedicated fashion district, an amusement park, a family zone, and dedicated areas for art, sports, gastronomy and education. Current estimates point to over 3 million visitors per season, with an average daily spend of 100–150 lei per person. The official opening is scheduled for July 2026.
The entire city will be connected through a visually striking promenade designed by architect Joshua Cox, known for SOLE DXB in Dubai. The design aims to turn Nibiru into a network of interdependent micro-economies and curated experiences.
Starting in 2026, Nibiru plans to host exhibitions, conferences, fashion shows, sporting competitions, and multi-day events, positioning itself as a year-round content engine rather than a traditional resort.
The city is also envisioned as a digital content platform, with dedicated filming spaces, creator studios, media infrastructures and partnerships with global brands. At the same time, it provides opportunities for HoReCa operators, local designers, artists, architects, athletes and entertainment professionals.
