Use ls -l -d dir
(-d
will make it stop listing the contents of a directory). From the documentation:
-d
,--directory
List just the names of directories, as with other types of files, rather than listing their contents. Do not follow symbolic links listed on the command line unless the
--dereference-command-line
(-H
),--dereference
(-L
), or--dereference-command-line-symlink-to-dir
options are specified.