in Germany, traffic pattern heights are listed in the AIP charts in MSL for most fields (ALL are licenced here) and is usually 1000 ft. AGL.
There is an official document for planning (NfL II 37/00) that puts the standard pattern above ground level for airplanes at 800 ft. and for ultralights at 600 ft., but most fields stick to the 1000 ft. AGL whenever possible.