Cadastral boundary data for select countries
Every claim here is quoted from a source or measured from the data. The measured values below came from queries over all 8,453,552 rows of the published file, run in August 2026.
https://data.source.coop/tristangruppwri/cadastral/brazil-car-area-imovel/brazil_car_area_imovel.parquet
GeoParquet 1.1.0, EPSG:4326, WKB, geometry types Polygon and MultiPolygon,
bbox covering column present, ZSTD, 212 row groups, largest 40,000 rows,
smallest 13,552. Parquet format version 2. 3,258,574,258 bytes.
Sidecar, 2 rows, EPSG:4674 and GeoParquet 1.0.0, with no covering column:
https://data.source.coop/tristangruppwri/cadastral/brazil-car-area-imovel/brazil_car_area_imovel_suspect.parquet
cod_imovel is not unique. 8,453,552 rows, 8,437,938 distinct values.
Never treat it as a primary key. A join on it fans out.
nom_tema is constant. All 8,453,552 rows carry Area do Imovel. It
cannot filter anything. The other CAR themes are not in this catalog, so a
query for Legal Reserve or Permanent Preservation Area returns nothing here.
des_condic has 16 distinct values. Published summaries that list ten are
incomplete. The full table with counts is in the collection README. Five
values begin with "Cancelado" and cover 152,344 rows. Do not drop them: an
omitted geometry is omitted sourcing area.
mod_fiscal and num_area are doubles; the two dates are strings.
dat_criaca and dat_atuali are not typed as dates and need a cast.
Do not concatenate the sidecar with the main file. The sidecar is EPSG:4674 and the main file is EPSG:4326. Its 2 geometries reach latitude 239,074,544 by design; they are the reason it exists.
The object is served as Content-Type: binary/octet-stream. The
collection declares application/vnd.apache.parquet. Dispatch on the STAC
declaration, not the header.
other. SICAR publishes no licence and no terms of use for AREA_IMOVEL. Read
the rel:license link on the collection before you redistribute.