/usr/include/votca/ is in libvotca-tools-dev 1.2.4-1.1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/votca/tools/
/usr/include/votca/tools/akimaspline.h
/usr/include/votca/tools/application.h
/usr/include/votca/tools/average.h
/usr/include/votca/tools/correlate.h
/usr/include/votca/tools/crosscorrelate.h
/usr/include/votca/tools/cubicspline.h
/usr/include/votca/tools/database.h
/usr/include/votca/tools/datacollection.h
/usr/include/votca/tools/histogram.h
/usr/include/votca/tools/histogramnew.h
/usr/include/votca/tools/lexical_cast.h
/usr/include/votca/tools/linalg.h
/usr/include/votca/tools/linspline.h
/usr/include/votca/tools/matrix.h
/usr/include/votca/tools/mutex.h
/usr/include/votca/tools/objectfactory.h
/usr/include/votca/tools/parsexml.h
/usr/include/votca/tools/property.h
/usr/include/votca/tools/random.h
/usr/include/votca/tools/rangeparser.h
/usr/include/votca/tools/spline.h
/usr/include/votca/tools/statement.h
/usr/include/votca/tools/table.h
/usr/include/votca/tools/thread.h
/usr/include/votca/tools/tokenizer.h
/usr/include/votca/tools/types.h
/usr/include/votca/tools/vec.h
/usr/include/votca/tools/version.h