Białystok, the capital of the Podlaskie region, N-E Poland, covers 102 km² and has ca. 293 000 inhabitants. In recent centuries the city has been incorporating its suburban villages. In effect, relics of village-like plot structures have been retained and immersed into the whole cadastral structure of the city. In the article, distribution of cadastral relics of extreme land fragmentation have been surveyed, based on two www GIS portals: http://gispodlasia.wrotapodlasia.pl and https://gisbialystok.pl. We extracted data about areas with extremely narrow and elongated plot structure, i.e. plots which are 1 to 20 m narrow while hundreds of meters long, sometimes of geometric proportions even as extreme as 1:600. About 50 areas with relics of extreme land fragmentation have been recognized, of which 15 areas seem to be essential for the city functional structure. Therefore, Białystok can be seen as an unique city in terms of its rural-derived structure with numerous remnants of extreme land frgmentation.
