Immediately after the Armistice Agreement Hugo Junkers decided the reorientation of his company's to civil aircraft production. In March 1919, as an interim measure, it was proposed to convert two aircraft Junkers J.10 (CL.I,  the second series ), to  light passenger aircraft. The plane did not have it´s  own designation, in the documents it was called Junkers J.10 (Zivilversion)  civilian or just Zivil. The first Junker passengerplane differed little from the basic model, , and the place of the  observer was rebuilt with a cabin for a passenger and luggage, or mail. . They were  used on the line Dessau (airport Dessau-Mosigkau) - Weimar (place of the meeting of the National Assembly) in  spring/summer of 1919.

The civilian version J.10 with only one passenger was not initially profitable. The aircraft was not used for a  long time, but it was used to get experience for the next project J.12

The all-metal monoplane followed the classical design. Fuselage - rectangular, rounded top. The design of the truss sections with duralumin. Corrugated duralumin. In front of the engine compartment, and at the open  pilot cabin. Behind a closed passenger cabin for one person. Wing - cantilever with a thick profile.

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