Józef Swiecicki was part of architects and builders who gave a characteristic shape to the city at the turn of the 19th and 20th centuries, dominated by eclectic buildings with various styles, including Art Nouveau or Modernism.

He started to co-run with his stepfather a large design and construction business, Święcicki-Hoffmann studio, during a couple of years (from the mid-1880s to 1887), before taking the lead of his own firm until 1903.

[6] He set up in 1892 a stucco ornament factory (German: Fabrik von Stuckornamenten track Facaden- und Innendekoration),[4] which products decorated the façades of its tenement houses.

[4] In 1898, he was commissioned by Józef Choraszewski, a Bromberg parish priest to work on the project of the Church of the Holy Trinity, but it was eventually realized by another architect, Roger Sławski.

In particular, three projects are seen as icons of Neo-Baroque architecture: A major part of his works was the construction of tenement houses according to his own designs on plots he had purchased, which were then sold with a profitable margin.

[4] In 1905, the family settled in a newly erected house at 17 Adam Mickiewicz Alley: in the recess of the estate he built a garage, where he stored his own car, one of the few private vehicles in Bromberg at the time.

He also published in 1910 an Illustrated Guide in Bydgoszcz (Polish: Ilustrowany Przewodnik w Bydgoszczy), in which he presented all major buildings in a shortened, popular form, complemented with address lists of facilities (hotels, restaurants ...).

Święcicki's style is characterized by a passion for symmetry, rhythmical vertical divisions, accentuated by the arrangement of windows, pilasters and a multitude of stucco ornaments.

[8] In November 2018, the city of Bydgoszcz honored the memory of the architect by dedicating a mural to Święcicki and his works, on a wall located at the corner of Gdańska and Cieszkowskiego Streets, in front of his former house[9]