Dwelling stocks - Residential buildings sold to natural persons

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This API provides access to subject P1721 of Poland's Local Data Bank (Bank Danych Lokalnych, BDL), maintained by the national statistical office GUS. It contains archival yearly territorial series on dwelling stocks, specifically residential buildings sold to natural persons, filed under the Housing Economy and Municipal Infrastructure category. Data are broken down by administrative unit, from voivodship down to gmina level, with each unit identified by its TERYT territorial code. The dataset is part of the broader BDL API, which offers structured, machine-readable access to Poland's official local and regional statistics.HOUSING ECONOMY AND MUNICIPAL INFRASTRUCTURE › ARCHIVAL DATA. Local Data Bank (BDL) subject P1721: yearly territorial series for Poland (voivodship to gmina level), units keyed by TERYT ids.

Values of one variable across territorial units Documentation Open source record

Data schema (8 fields)

Click a field to see example values.

Field	Type	Description
variable_idVariable id	string	GUS variable id identifying the measured series: buildings, dwellings, or floor area.GUS variable id selecting the measured series of subject P1721 (the n1/n2 dimension combination): 395=buildings [-]; 396=dwellings [-]; 397=useful floor area of dwellings [m2].
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 recorded 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, e.g. town or gmina.Name of the territorial unit, e.g. town or gmina.
teryt_tercTeryt terc	string	TERYT TERC code identifying the 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	Numeric value of the measured series for the given unit and year.Numeric value of the measured series for the given unit and year.
attr_idAttr id	integer	GUS data quality or annotation flag for the value.GUS value-attribute id (data quality/annotation flag).

Schema captured from bdl 5 days ago.

Query the data

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Sample data (8 records)

variable_id	unit_level	year	unit_id	unit_name	teryt_terc	value	attr_id
395	6	1995	011212001011	Bochnia	1201011	0	0
395	6	1996	011212001011	Bochnia	1201011	0	0
395	6	1997	011212001011	Bochnia	1201011	0	0
395	6	1998	011212001011	Bochnia	1201011	0	0
395	6	1999	011212001011	Bochnia	1201011	1	1
395	6	2000	011212001011	Bochnia	1201011	0	0
395	6	2001	011212001011	Bochnia	1201011	1	1
395	6	1995	011212001022	Bochnia	1201022	0	0

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/P1721

License

Creative Commons Attribution 4.0Open

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Query examples

curl -s 'https://bdl.stat.gov.pl/api/v1/data/by-variable/395?unit-level=6&page-size=10&format=json&lang=en'

Yearly values of variable 395 (buildings [-]) 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.

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