Heating network in licensed entities
This API provides access to subject P3770 of Poland's Local Data Bank (Bank Danych Lokalnych, BDL), covering heating network data for licensed entities under housing economy and municipal infrastructure statistics. It offers yearly territorial time series spanning the national, voivodship, and gmina levels, with administrative units identified by TERYT codes. The dataset is maintained by Statistics Poland (GUS) and forms part of the broader BDL system, which aggregates official statistics across many thematic domains. It is useful for analyzing the development and distribution of district heating infrastructure across Polish regions and municipalities over time.”}HOUSING ECONOMY AND MUNICIPAL INFRASTRUCTURE › HEATING SYSTEM MANAGEMENT. Local Data Bank (BDL) subject P3770: yearly territorial series for Poland (voivodship to gmina level), units keyed by TERYT ids.
Trust score
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Data schema (8 fields)
Click a field to see example values.
| Field | Type | Description |
|---|---|---|
| variable_idVariable id | string | GUS variable code identifying the measured heating network series.GUS variable id selecting the measured series of subject P3770 (the n1/n2 dimension combination): 744856= length of heating transmission and distribution network [km]; 744857=length of connections to buildings [km]. |
| unit_levelUnit level | integer | Territorial aggregation level, from country (0) down to gmina (6).Territorial aggregation level: 0=Poland, 1=macroregion, 2=voivodship (województwo), 3=region, 4=subregion, 5=powiat, 6=gmina. |
| year | integer | Reference year of the yearly data value.Reference year of the value (yearly series, back to 1995 for the oldest subjects). Filters server-side via the API's year parameter. |
| unit_idUnit id | string | 12-digit BDL territorial unit identifier.12-digit BDL territorial-unit id (macroregion+voivodship+region+subregion+powiat+gmina+type digits). An equality filter pins the unit server-side (unit-parent-id). |
| unit_nameUnit name | string | Name of the territorial unit.Name of the territorial unit. |
| teryt_tercTeryt terc | string | TERYT TERC territorial code for voivodship, powiat, or gmina.TERYT TERC territorial code derived from the unit id (2 digits = voivodship, 4 = powiat, 7 = gmina incl. type digit; empty for NUTS-only units). |
| value | number | Measured value of the heating network indicator.Measured value of the heating network indicator. |
| attr_idAttr id | integer | GUS attribute code flagging data quality or annotation.GUS value-attribute id (data quality/annotation flag). |
Schema captured from bdl 6 days ago.
Query the data
Pick columns and a sort, then fetch a live preview straight from the source. Choose an API-filterable column (marked ▾) under “Where” to pick from its list of values.
Sample data (8 records)
| variable_id | unit_level | year | unit_id | unit_name | teryt_terc | value | attr_id |
|---|---|---|---|---|---|---|---|
| 744856 | 6 | 2017 | 011212001011 | Bochnia | 1201011 | 9.5 | 1 |
| 744856 | 6 | 2018 | 011212001011 | Bochnia | 1201011 | 9.5 | 1 |
| 744856 | 6 | 2019 | 011212001011 | Bochnia | 1201011 | 9.5 | 1 |
| 744856 | 6 | 2020 | 011212001011 | Bochnia | 1201011 | 9.5 | 1 |
| 744856 | 6 | 2021 | 011212001011 | Bochnia | 1201011 | 9.5 | 1 |
| 744856 | 6 | 2022 | 011212001011 | Bochnia | 1201011 | 11 | 1 |
| 744856 | 6 | 2023 | 011212001011 | Bochnia | 1201011 | 11 | 1 |
| 744856 | 6 | 2024 | 011212001011 | Bochnia | 1201011 | 11 | 1 |
Live sample captured at profiling time — values may have changed upstream.
Verification Status
Using the API
Configuration
- Base URL
- https://bdl.stat.gov.pl/api/v1/subjects/P3770
License
- ✓ Redistributable
- ✓ Attribution required
Query examples
curl -s 'https://bdl.stat.gov.pl/api/v1/data/by-variable/744856?unit-level=6&page-size=10&format=json&lang=en'Yearly values of variable 744856 ( length of heating transmission and distribution network [km]) per territorial unit. Filters: unit-level=0–6, year=YYYY, unit-parent-id={12-digit unit id}; page-size ≤ 100. Anonymous limits: 5 req/s, 100 req/15 min.
Machine-readable & source
Embed this badge in a README or wiki — it always shows the latest verification state and quality tier.