In these sources, the numerous references are made to brick buildings, homes, dwellings, empty squares and breweries located in the street.

It bore the initials of the landlord, "Maciej Rychlicki", councilor and bailiff of the city: ceiling beams are now exposed in the restaurant Browar Pub now occupying the premises.

Alfred Cohn, of Jewish origin, who lived 19 years in a house at the corner with Jan Kazimierz wrote a book about his memories of the period around the turn of the 20th century in this street.

This book accurately depicts shops and premises of the small Jewish quarter, in Długa street in the early 20th century, such as:[7] Since 1888, tram network -initially horsecars and from 1896 electrical powered- have run in the area.

In 1945, after the reconstruction of the bridge over the Brda river connecting the old town with Theatre square, tram service resumed in Długa street.

In 1969, the streetcar traffic was stopped in the western part of the street, and in 1973, the rest of the network in the Old Town has been disbanded, giving priority to the pedestrian zone.

In the 1990s, after heavy works between Wełniany Rynek in Bydgoszcz and Jan Kazimierz street, the environment have been transformed into a promenade, closed to traffic.

In June 2008, at the intersection with Jan Kazimierz Street has been placed a historic tram car, acting as a seasonal Tourist Information Centre[10] and reminding of the gone streetcar activity in the area.

In 2009, has been achieved the reconstruction of the western end of the street, the "Wool Market" (Polish: Wełniany Rynek), with the setting of a monument to Leon Barciszewski, Mayor of Bydgoszcz from 1932 to 1939.

In 2014, Bydgoszcz's Mayor has begun to issue administrative orders to landlords compelling them to carry out renovation works: such was the instance for houses at Nr.10, 13, 14, 15, 16, 17, and 58.

[17] Local artist Michał Kubiak designed the plaques, nominated names are chosen by a committee comprising among others municipality members and university officials.

[18] Middle of the 19th century[18] Neoclassical architecture, elements of Eclecticism Located at Friedrich Straße 37 during the Prussian times, it was then owned by the Jacobi Brothers.

A/1114 (October 8, 1993)[29] 1866–1872[18] Northern Europe Neo-Renaissance The house has been rebuilt in 1879 following a design by Carl Stampehl:[14] the roof has an attic topped by a pinnacle.

During the Greater Poland Uprising, premises served as infirmary for wounded insurgents, with the heroic help of Dr. Jan Biziel and thanks to the kindness of Stanislaw Stryszyk.

1775–1783[18] Northern Europe Neo-Renaissance The facade, renovated in 2014, displays a sculpture of a soldier or a hunter with his sword, surrounded by a winegrape vegetation.

[33] Middle of the 19th century[18] The house, located at Friedrich Straße 31 during Prussian period, was the property of Wilhelm Schulße Jr., who had been running a hat workshop[35] from the end of the 1860s till World War I (then managed by his son Julius).

1776[18] Neo-Renaissance, elements of Eclecticism During the second half of the 19th century, the landlord was Albert Ménard, a merchant and member of Bromberg city council.

First half of the 19th century[18] Neoclassical architecture In the 1880s, this building was the property of the Weisbein family, traders in cereals, living in Brücken Straße - today's Mostowa street[38] 1895-1896[39] The house was designed by A. Jenisch and Scheithauer.

Kuyavian-Pomeranian Heritage list Nr.735492, Reg.A/1561/1 (May 11, 2010)[29] 1800-1825[18] Eclecticism Built in the aftermath of the Swedish invasion (1670s), it was the only stately building in which John III Sobieski and his family could be accommodated in 1677, on his way from Toruń.

In 1933, the Bydgoszcz branch of Polish Historical Society, in consultation with other organizations decided to unveil a plaque in the facede of the house celebrating the 250th anniversary of the Battle of Vienna.

This object in honor of John III Sobieski and Stephen Báthory was, however, placed on the wall of Church of the Poor Clares, and finally destroyed by Nazis in 1939.

On November 26, 1950, a commemorative bronze plaque, designed by Piotr Triebler and founded by the Society of Friends of Bydgoszcz has been unveiled to honore the painter.

In the 1880s, the house at then Friedrich Straße 49, was owned by Mrs Flora Indig, managing a shop selling material for writing and drawing.

In Bydgoszcz, Carl Stampehl also designed : The triangular peak gable is adorned with pinnacles and a figural allegorical composition comprising industry theme.

Kuyavian-Pomeranian Heritage list Nr.A/374/1 (October 10, 1993)[29] 1880-1884[39] Neoclassical architecture & Eclecticism The original edifice erected between 1830 and 1833 was designed to be an outbuilding for the administrative purposes benefit of the Town Hall.

In 1879, the new city hall moved to the former Jesuit College on the Old Market, much larger and the existing building was sold the same year to a hotelier, Julius Lengning.

Facade decorations were of neoclassical style, much richer than the surroundings with meanders motifs under the windows of the attic and friezes crowning the cornice.

Between both library buildings runs the narrow Zaułek street: to unite the architectural ensemble, a covered passage called the "Bridge of Sighs" (Polish: Most Westchnień), has been built in 1920.

On the façade of the building onto Długa street, a commemorative plaque in memory of Jan Teska as a mainstay of Polish in the first decades of the 20th century in Bydgoszcz has been unveiled in 1996.

At this period, the landlord was Carl Wenzel, merchant, member of Bromberg city council, who lived at Danziger Straße 13 (today's Gdańska street 17).