/usr/include/KPim/kdav/ is in libkpimkdav-dev 17.12.3-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/KPim/kdav/davcollection.h
/usr/include/KPim/kdav/davcollectiondeletejob.h
/usr/include/KPim/kdav/davcollectionmodifyjob.h
/usr/include/KPim/kdav/davcollectionsfetchjob.h
/usr/include/KPim/kdav/davcollectionsmultifetchjob.h
/usr/include/KPim/kdav/daverror.h
/usr/include/KPim/kdav/davitem.h
/usr/include/KPim/kdav/davitemcreatejob.h
/usr/include/KPim/kdav/davitemdeletejob.h
/usr/include/KPim/kdav/davitemfetchjob.h
/usr/include/KPim/kdav/davitemmodifyjob.h
/usr/include/KPim/kdav/davitemsfetchjob.h
/usr/include/KPim/kdav/davitemslistjob.h
/usr/include/KPim/kdav/davjobbase.h
/usr/include/KPim/kdav/davmanager.h
/usr/include/KPim/kdav/davprincipalhomesetsfetchjob.h
/usr/include/KPim/kdav/davprincipalsearchjob.h
/usr/include/KPim/kdav/davprotocolbase.h
/usr/include/KPim/kdav/davurl.h
/usr/include/KPim/kdav/enums.h
/usr/include/KPim/kdav/etagcache.h
/usr/include/KPim/kdav/kpimkdav_export.h
/usr/include/KPim/kdav/libkdav_debug.h
/usr/include/KPim/kdav/utils.h