Property description

Hallmark House is a striking mixed-use building in the Maboneng area of Johannesburg, originally a diamond polishing factory that was reimagined by renowned architect David Adjaye. Today, it blends a boutique hotel, residential apartments, restaurants, creative spaces, and nightlife into a single, design-forward urban hub. The building is known for its industrial aesthetic—exposed concrete, moody interiors, and strong African design influences—reflecting the character of inner-city Johannesburg. 

The rooftop—now often referred to as The Twenty Twenty Club—is one of its standout features. Located about 15 floors up, it offers sweeping 360-degree views of the Johannesburg skyline, making it a popular spot for sunsets, social gatherings, and nightlife. The space combines a wraparound bar, contemporary design, and a lively atmosphere, often hosting DJs, events, and art displays. It’s widely regarded as one of the city’s most iconic rooftop venues, where the gritty energy of downtown Jozi meets a more polished, stylish experience. 

Overall, Hallmark House is less just a building and more of a cultural hub—its rooftop in particular captures that spirit, offering a place where views, music, art, and city life all come together. ted 15 Floors up in the Sky in downtown Johannesburg - A place with 360 Views Twenty Club at Hallmark is where do