Can't create directory in directory owned by group

I have a group called homeperms on an Ubuntu system, with a few users: $ cat /etc/group | grep "homeperms" homeperms:x:1004:jorik,tim.wijma,vanveenjorik,jorik_c And I've done $ sudo chgrp -R homeperms /home. But when I try to md /home/flask. I get a permission denied error (Happens with any other folder name too). I don't want to 777 the folders since I'm going to be dealing with web server stuff. Permissions of home in / drwxr-xr-x 12 vanveenjorik homeperms 4096 Jul 6 09:06 home permissions inside /home: drwxr-xr-x 6 vanveenjorik homeperms 4096 Jul 3 20:08 19150 drwxr-xr-x 3 codeanywhere-ssh-key homeperms 4096 Jul 6 08:00 codeanywhere-ssh-key drwxr-xr-x 2 vanveenjorik homeperms 4096 Jul 6 09:13 downloads drwxr-xr-x 5 vanveenjorik homeperms 4096 Jul 4 08:43 jorik drwxr-xr-x 4 jorik_c homeperms 4096 Jul 6 08:09 jorik_c drwxrwxr-x 4 vanveenjorik homeperms 4096 Jul 3 20:15 mkdir_python drwxr-xr-x 5 vanveenjorik homeperms 4096 Jul 4 09:09 tim.wijma drwxr-xr-x 3 vanveenjorik homeperms 4096 Jul 3 18:20 ubuntu drwxr-xr-x 5 vanveenjorik homeperms 4096 Jul 4 09:27 vanveenjorik drwxrwxr-x 3 vanveenjorik homeperms 4096 Jul 3 22:28 venvs I am trying to do this on the user 'jorik_c' and with sudo this (of course) works flawlessly Before this gets marked as duplicate, the answer to this question , didn't help.