Designers Édouard Joly and Jean Délémontez based the design on two of their earlier projects; they combined the wing of the projected D.10 with a lengthened and widened version of the D.9 fuselage.
In 1961, Jean Délémontez designed a two-seat light aircraft for the Société Aeronautique Normande (SAN) at Bernay in Normandy to replace his earlier Jodel D.11, which SAN (amongst other manufacturers) were building to meet a requirement for aircraft to equip flying clubs subsidised by the French government.
In March 1946, Edouard Joly and Jean Délémontez formed the Société des Avions Jodel to supply kits, materials and plans to allow homebuilders to construct an ultralight monoplane designed by Délémontez and named the Jodel D.9