/usr/include/CGAL/NewKernel_d/ is in libcgal-dev 4.11-2build1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/CGAL/NewKernel_d/Cartesian_LA_base.h
/usr/include/CGAL/NewKernel_d/Cartesian_LA_functors.h
/usr/include/CGAL/NewKernel_d/Cartesian_base.h
/usr/include/CGAL/NewKernel_d/Cartesian_change_FT.h
/usr/include/CGAL/NewKernel_d/Cartesian_complete.h
/usr/include/CGAL/NewKernel_d/Cartesian_filter_K.h
/usr/include/CGAL/NewKernel_d/Cartesian_filter_NT.h
/usr/include/CGAL/NewKernel_d/Cartesian_per_dimension.h
/usr/include/CGAL/NewKernel_d/Cartesian_static_filters.h
/usr/include/CGAL/NewKernel_d/Coaffine.h
/usr/include/CGAL/NewKernel_d/Define_kernel_types.h
/usr/include/CGAL/NewKernel_d/Dimension_base.h
/usr/include/CGAL/NewKernel_d/Filtered_predicate2.h
/usr/include/CGAL/NewKernel_d/KernelD_converter.h
/usr/include/CGAL/NewKernel_d/Kernel_2_interface.h
/usr/include/CGAL/NewKernel_d/Kernel_3_interface.h
/usr/include/CGAL/NewKernel_d/Kernel_d_interface.h
/usr/include/CGAL/NewKernel_d/Kernel_object_converter.h
/usr/include/CGAL/NewKernel_d/LA_eigen/
/usr/include/CGAL/NewKernel_d/LA_eigen/LA.h
/usr/include/CGAL/NewKernel_d/LA_eigen/constructors.h
/usr/include/CGAL/NewKernel_d/Lazy_cartesian.h
/usr/include/CGAL/NewKernel_d/Types/
/usr/include/CGAL/NewKernel_d/Types/Aff_transformation.h
/usr/include/CGAL/NewKernel_d/Types/Hyperplane.h
/usr/include/CGAL/NewKernel_d/Types/Iso_box.h
/usr/include/CGAL/NewKernel_d/Types/Line.h
/usr/include/CGAL/NewKernel_d/Types/Ray.h
/usr/include/CGAL/NewKernel_d/Types/Segment.h
/usr/include/CGAL/NewKernel_d/Types/Sphere.h
/usr/include/CGAL/NewKernel_d/Types/Weighted_point.h
/usr/include/CGAL/NewKernel_d/Vector/
/usr/include/CGAL/NewKernel_d/Vector/array.h
/usr/include/CGAL/NewKernel_d/Vector/avx4.h
/usr/include/CGAL/NewKernel_d/Vector/determinant_of_iterator_to_points_from_iterator_to_vectors.h
/usr/include/CGAL/NewKernel_d/Vector/determinant_of_iterator_to_points_from_points.h
/usr/include/CGAL/NewKernel_d/Vector/determinant_of_iterator_to_vectors_from_vectors.h
/usr/include/CGAL/NewKernel_d/Vector/determinant_of_points_from_vectors.h
/usr/include/CGAL/NewKernel_d/Vector/determinant_of_vectors_small_dim.h
/usr/include/CGAL/NewKernel_d/Vector/determinant_of_vectors_small_dim_internal.h
/usr/include/CGAL/NewKernel_d/Vector/mix.h
/usr/include/CGAL/NewKernel_d/Vector/sse2.h
/usr/include/CGAL/NewKernel_d/Vector/v2int.h
/usr/include/CGAL/NewKernel_d/Vector/vector.h
/usr/include/CGAL/NewKernel_d/Wrapper/
/usr/include/CGAL/NewKernel_d/Wrapper/Cartesian_wrap.h
/usr/include/CGAL/NewKernel_d/Wrapper/Hyperplane_d.h
/usr/include/CGAL/NewKernel_d/Wrapper/Point_d.h
/usr/include/CGAL/NewKernel_d/Wrapper/Ref_count_obj.h
/usr/include/CGAL/NewKernel_d/Wrapper/Segment_d.h
/usr/include/CGAL/NewKernel_d/Wrapper/Sphere_d.h
/usr/include/CGAL/NewKernel_d/Wrapper/Vector_d.h
/usr/include/CGAL/NewKernel_d/Wrapper/Weighted_point_d.h
/usr/include/CGAL/NewKernel_d/function_objects_cartesian.h
/usr/include/CGAL/NewKernel_d/functor_properties.h
/usr/include/CGAL/NewKernel_d/functor_tags.h
/usr/include/CGAL/NewKernel_d/static_int.h
/usr/include/CGAL/NewKernel_d/store_kernel.h
/usr/include/CGAL/NewKernel_d/utils.h