Curved screens envelope Cielo, a 12-storey residential building in Maharashtra, India, designed by Mumbai-based architecture studio Sanjay Puri Architects.

Cielo sits on a compact 900-square-metre site in Nagpur, a central Indian city in the state of Maharashtra that experiences extreme heat for most of the year.

Sanjay Puri Architects has unveiled an apartment building in Nagpur, India

Local regulations allowed for a maximum buildable area of 3,600 square metres, with open spaces required along all four edges of the site.

In response to the spatial regulations and the hot climate, Sanjay Puri Architects placed a single 270-square-metre, four-bedroom apartment unit on each level to ensure ample cross-ventilation within each residence.

The building is covered in curved foam concrete screens

"Most new developments in the city do not take cognisance of the extremely hot climate," studio founder Sanjay Puri told Dezeen.

"Cielo is planned with shielded spaces and balconies to all rooms, resulting in…