One of the last times we went to Lisbon we stayed in an apartment with a terrace opposite this building. The whole façade is great, but hard to shoot as the street is narrow. From above however, the roof was in plain sight in all its glory.
In Porto skylights are of conical shape everywhere, but here we can see the more typical Lisbon skylight which looks like a little doll house on top of the house proper when seen from the outside. The dormers still have the traditional painted corrugated sheet metal siding on as well.
Lisboa, Rua do Jasmim.