The answer is El Callejón de NUGA, a 4,620 m² pedestrian promenade that now forms the living core of the development. A former service passage has been reimagined as an interior street connecting four surrounding roads: Paseo de la Castellana, Doctor Fleming, Félix Boix and Carlos Maurás. Crowned by a generous skylight that draws Madrid's sky down into the heart of the block, the alley now hosts restaurants with open-air terraces and three bars offering continuous service throughout the day. Opaque walls have given way to glazed elements, improving natural light and visual permeability, while terraces and shared spaces encourage movement and exchange between the block's constituent buildings.

"We wanted to transform the space surrounding the skylight by creating a new garden around it for users to enjoy, while also improving NUGA's environmental quality," says Jonathan Cañavate, Project Lead at Broadway Malyan.

"NUGA Castellana has now become the new dining hub in the north of the city, and all the other components of this large complex, residential, hospitality and offices, have been substantially revalued," says Jorge Ponce Dawson, Director of Broadway Malyan Madrid.