Latest update of the City Legislative and Administration Building revealed aluminum claddings are now installed on the building’s exterior. This is a trend in building construction nowadays as a viable and cheaper alternative to paint.
As seen in the pictures, workers are seen doing various activities in the work area. The central part (just above the City Tourism Office) is more likely a bridge or hallway with a view of the city hall grounds and the river, if I’m not mistaken. I think they will install glass walls on this part.
Meanwhile, ramps and main entrances are now visible on the section near Burgos Street. More pictures below. Just click each image for larger view.