| Key | Value |
| addr:city | Piecki |
| addr:city:simc | 0486296 |
| addr:housenumber | 5 |
| addr:postcode | 11-710 |
| addr:street | Leśna |
| building | yes |
| building:levels | 2 |
| office | forestry |
| old_name: -1945 | Kleinort |
| old_name:1945-1967 | Sosnówka |
| source | Starostwo Powiatowe w Mrągowie |
| source:addr | piecki.e-mapa.net |
| start_date | 1883 |