After every tremor in Greece or Turkey, home groups come to life with the same question. And almost always with the wrong one. People ask from what is their building. It is far more important in Sofia when
Which buildings in Sofia are risky?
The buildings with masonry structures and reinforced concrete frames, built before 1987, bear the greatest risk in an earthquake in the capital. Then the stricter design norms in earthquake areas come into force. The condition of the specific building, not only the type of construction, is also decisive.
Find your building
| Period and type | What does it mean |
|---|---|
| Masonry buildings before 1987. | Highest risk group in Sofia |
| Reinforced concrete frames before 1987. | Also in the risk group on the report |
| Panel blocks | Outside the risk group |
| Built after 1987. | Designed according to stricter norms |
| New construction | Current norms, documented construction |
The ranking comes from a report by „Softplan“ based on a World Bank study.
Why exactly 1987.
Design norms in earthquake areas are significantly tightened precisely then. A building erected a year earlier was designed to requirements that would not be accepted today.
This does not mean that every old building is dangerous. It means that with her, the answer is not read by the year, but by the documents.
The three things that bring down the stability of any building
Regardless of the construction, three factors degrade the behavior of the building in an earthquake:
- Walls removed. An owner who „only expands the daily“ often takes a carrier element. In buildings without skeletal construction, almost every wall works.
- Redeveloped parterres. Shops with wide storefronts on the first floor weaken the building exactly where the load is greatest.
- Lack of survey. Many inputs do not allocate funds for constructive analysis – and owners have no idea what state they live in.
These interventions are not visible from the street. They affect the entire building, including your apartment three floors above.
What to check before you buy
- The year of construction. In a building before 1987, ask for construction documents, not assurances.
- The conversions. Ask about the ground floor and neighboring apartments, not only about yours.
- The constructive survey. Few inputs have it – and the lack itself is information.
Frequently asked questions
Which buildings are the most dangerous in an earthquake in Sofia?
According to the report, based on a World Bank study, masonry structures and reinforced concrete frames built before 1987 are the most risky. However, the condition of any particular building can change the picture – weigh the remodeling, maintenance and moisture on the structure.
How do I know if my building is sustainable?
The only reliable answer comes from a constructive survey carried out by a qualified engineer. The year of construction and the type of construction give a first orientation, but do not replace inspection. Ask the house manager if the entrance has such an inspection.
Is new construction safer?
The new buildings are designed according to current norms and have a documented structure without decades of undocumented repairs. This is a serious advantage, but not an automatic warranty – weighs both the quality of execution and the reliability of the builder.
See what's behind the walls
Seismic resistance is not visible in the photos in the ad. It is read in the project. Explore global Build projects in Sofia and contact us at +359 878 730 730 – we will show you the constructive solution of each building.