Overgaden oven Vandet 54–56 is a complex of Late Neoclassical buildings situated at the corner of Overgaden Oven Vandet and Bådsmandsstræde, adjacent to Søkvæsthuset, in the Christianshavn neighborhood of central Copenhagen, Denmark.

The two buildings originate in a two-storey bourgeois townhouse from the first half of the 18th century but were both heightened to five storeys by silk hat manufacturer and developer H.P.

96 in Christianshavn Quarter in Copenhagen's first cadastre of 1689 and was at that time owned by Hans Nansen the Younger (1635-1713).

It is unclear when the first buildings were constructed, but an old glass manufactory is mentioned in 1708 and the property was home to a family of four people prior to the Copenhagen Fire of 1728.

The main wing along the canal street was constructed in brick with one storey over a walk-out basement.

A two-storey secondary wing extended along Bådsmandstræsde and was followed by an eight-bays-long, one-storey, half-timbered building.

Their household comprised their daughter Anne Bolette Buntzen, their son Andreas Buntzen (1781–1830), the wife's mother Bolette Achem Anne Cathrine Buurmeister, an office clerk in the family's trading firm, a caretaker and two maids at the time of the 1787 census.

[8] His sister had married the military officer Frederik (Friederich) Julius Christian de Saint-Aubain (1754–1819) in 1798 and they were now residing in an apartment at the corner of Torvegade and Strandgade.

She was a daughter of the composer Edouard Du Puy (c. 1770–1822) and the actress Julie Henriette Pauline Moulineuf (aka Montroze, died 1833).

His home was a lively meeting place for members of the extensive Buntzen family.

It was also frequented by some of the prominent cultural figures of the time, including Jens Baggesen, Thomasine Gyllembourg (née Buntzen, his cousin) and Peter Andreas Heiberg.

Buntzen's nephew Andreas Nicolai de Saint-Aubain [da], who published his books under the pseudonym Carl Bernhard, has described life in the building in Et år i København ("One Tear in Copenhagen").

Nicolai Clausen Schack [da] (1781-1944), pastor of Our Saviour's Church, resided on the first floor with his wife Tagea Dorothea Schack (née Erasmim 1786–1841), three of their children (aged 20 to 24), one male servant and one maid.

[10] Hans Arreboe Clausen (1806–1891), a merchant trading on Iceland, resided on the first floor with his wife Asa Sandholdt (1815-1899), their nine-year-old son Holger Peter Clausen, his sister-in-law Madam Høling and her three-year-old daughter, one apprentice and one maid.

[11] Peter Christian Abildgaard Holten, an employee at the Hambroske Møller, resided on the ground floor with the seamstress Karen Marie Hansen.

He had made a fortune on the production of silk hats and saw a lucrative business opportunity in investing his money in creating new homes for Copenhagen's booming population through densification of old low-density sites.

The city had still not been allowed to develop outside its old bastioned fortification ring and new homes for the fast-growing population were therefore in very high demand.

Lorentzen would later engage in a number of other redevelopment projects, most notably on the east side of Nikolah Plads (seven new apartment buildings) and in Nyboder.

Ane Christine Michelsen, widow of a master weaver, resided on the ground floor with her seven children (aged 10 to 25).

Karen Helene Elise Sørensen, a laundry woman, resided on the ground floor with one maid.

Ida Mathilde With, widow of civil servant Peter N. With, resided on the second floor with her four children (aged one to 14), a 22-year-old woman and her nephew Henrik Lindemann.

Jens Jensen, a coal worker, resided in the garret with his wife Else Nielsdatter and his 13-year-old stepson Carl Vilhelm Rotkjær.

a master cooper, resided in the other first floor apartment with his wife Vilhelmine Conradine Olsen.

Vilhelmine Sophie Knudsen and Sigrid Nilsdatter, a 60-year-old nurse and a 24-year-old factory worker, resided on the second floor of the wide wing.

In 1904 the ground floor apartment at Overgaden Oven Vamdet 56 was converted into an extra shop.

Overgaden Oven Vandet 54 is constructed with five storeys in a plinth of granite ashlars.

45 commemorates Aksel Hugo Reimer Madsen (1923-1945), a member of the Danish resistance movement, who was killed at the site on 5 May 1945.

The inscription reads "Here died in combat / for / Denmark's independence / Reimer Madsen / on 5 May 1945 / your fight was / not in vain".