If "Serdia" was a typo for the country :
Today, SERDIA’s name is largely forgotten outside architectural and housing history circles. However, its estates remain home to thousands of Portuguese families. In the 2010s–2020s, several SERDIA-built neighbourhoods (especially and parts of Olivais ) received municipal rehabilitation funds to address decay, improve energy efficiency, and install elevators. serdia
SERDIA was established under (September 19, 1947). Its capital was divided between: If "Serdia" was a typo for the country