Jørgen was born on 13 May 1858 in Frederikssund, the son of Christian Erhard Jærgensen Veng (1827–1906) and Eugénie Françoise Eva Vincent (1834–1906).

He graduated from Metropolitanskolen in 1875 and apprenticed as a mason before enrolling at the Royal Danish Academy of Fine Arts in 1877.

He later focussed more on designing large houses for wealthy customers in the Copenhagen area.

Yjeu were designed in the so-called Mansion Style, introduced by Andreas Clemmesen some time earlier.

[1] Jørgensen married Camilla Maria Permin (3 October 1858 – 27 January 1940) on 27 September 1887.