Green space access — how it is calculated
The green score measures how accessible nature is around a given address. We combine distance to a large green area, local greenery within 300 m and 1 km, and actual green cover from satellite imagery.
Four components
Distance to the edge of a large park or forest. Proximity to Borisova Gradina, Vitosha, or South Park yields a high score.
Total area of all green polygons within 300 meters of the address. Small parks and gardens contribute here.
Same as above in a wider radius. Lower weight, as distance reduces daily usability.
Assessment of actual vegetation in both radii from satellite imagery, processed to distinguish real vegetation.
Typical score ranges
- 80–100Immediate proximity to Borisova Gradina, Vitosha, or South Park. Common for Lozenets, Dragalevtsi, Vitosha.
- 60–79Good local greenery but farther from a major park. Typical for Izgrev, Ivan Vazov.
- 40–59Small parks nearby but no major green area within reach.
- 0–39Dense development with minimal greenery. Typical for parts of Nadezhda, Ilinden, Krasna Polyana.
What we do not measure
We do not assess maintenance quality, presence of playgrounds or sports facilities, lighting, or safety. We measure only the physical proximity and density of green areas.
Data: OpenStreetMap green polygons + satellite vegetation index, updated annually.