Several hundred metres south of the Old Town a new settlement grew in the 1820s. It opened up the straight-line course of Piotrkowski Trakt, its making was the beginning of the industrial development of the city. The square in the middle of the settlement functioned as a market place. It can be still seen in the post-cards from the beginning of the century. The architecture of the oldest part of the frontage had an interesting look, too. On both sides of ul. Piotrkowska two buildings were raised in 1826-1828, close to each other in terms of their Classicist form - the town hall and the Evangelical church of the Holy Trinity, designed by Bonifacy Witkowski, architect of the Mazovian Voivodship Committee. From the east the square has got a small, rectangular annex with an arcade. This is a remainder of the Old Town butcher's stalls, ace. to the design by H. Marconi from the first half of the 19th c.

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