Clean air and energy

• Replacement of solid fuel appliances in over 28 000 households.

• Installation of electrostatic filters and promotion of alternative sources (air conditioners, gas, pellets).

• Projects for financing: LIFE IP Clean Air, OP “Environment”.

Sustainable mobility and transport

• Purchase of electric vehicles and charging stations.

• Metro expansion and new tram lines.

• Development of cycle paths, pedestrian zones and Park & Ride systems.

• Low emission zones by 2025

Green infrastructure and land use

• Project “Green Ring” – 32 km green corridor connecting parks and neighborhoods.

• “New Forest of Sofia” – 125,000 trees on 225 dekas.

• “Green Sofia” – renovated over 1465 spaces between blocks.

• Shared parks in schools and kindergartens.

Water Resources Management

• Main source: dam. Iskar (80% of the water for the city).

• Digital monitoring and sensor systems for water quality.

• Civic initiatives – “Fountains in Bulgaria”, “Rivers of Sofia”.

• Center for Biodiversity on River. Iskar.

Waste and circular economy

• Mechanical-biological treatment plant (410,000 t/year).

• Biowaste plant – compost and electricity.

• Online recycling platform (waste.sofia.bg).

• Volunteer initiatives – “Caps for the Future”, textile recycling.

Climate and energy efficiency

• Target: -40% greenhouse gas emissions by 2030 , climate neutrality by 2050 g.

• Investments: 463 million euros in energy efficiency, RES and smart infrastructure.

• Renovated 114 buildings (2017–2020) with saved 44.8 million kWh per year.