... For sale Studio/ Open plan apartment, city of Sofia, Mladost-3, 33.36 sq.m, ...Construction type: High-rise building Year of construction: 1989 Year Heating: Central ...building Year of construction: 1989 Year Heating: central heating Exposure: East Bathrooms: 1 Balconies: ... For sale Studio/ Open plan apartment, city of Sofia, Mladost-3, 33.36 sq.m, ... For sale Studio/ Open plan Apartment, city of Sofia, Mladost-3, 33.36 sq.m,