English: From the 1860s, Białystok experienced a rapid development of the textile industry, trade and crafts. Over the course of several decades, the population increased significantly, there was a housing shortage and there was a need to build modern municipal infrastructure. The process of urbanization of the areas around the city also progressed. Therefore, there was a need to develop and apply in practice official regulatory plans. In Białystok, three documents of this type were prepared in 1810, 1880 and 1887. The plan from 1880 was prepared by engineer-architect Romuald Lenczewski. The document presents the new, corrected course of the borders of Bialystok in relation to the plan from 1810, which was extended to include the areas around the railway station. The city's area was divided into regular quarters numbered from 1 to 176. Each quarter received appropriate colors marking existing and planned quarters as well as existing and planned wooden or brick buildings. Existing public utility or state administration facilities were also drawn. The plan introduced new street names and locations of facilities that were re-located compared to the plan from 1810 (including new temples, the government building of the Tax Chamber and bridges over the river). New objects appeared next to them. An important novelty was the introduction of urban greenery to Bialystok for the first time - a large park was designed next to the large palace pond (the future old Poniatowski park), and on the so-called dry ponds at ul. Niemiecka (today ul. Kilinskiego) a square was proposed (unrealized). Two new plasters were to appear in the city space (at Nowy Swiat Street and the planned Piwna Street, today Sklodowska-Curie Street). It was also of key importance to indicate the location of new religious cemeteries on the Grodno route (today ul. Wasilkowska) while closing the old necropolises and maintaining the park's character. Already in 1880, plans were made to locate a new Catholic temple at the cemetery of St. Roch, which later formed the basis for the first church design by Józef Pius Dziekonski (which was not implemented). The plan of 1880 was approved by the provincial authorities in January 1881.