This is tricky because I'm not sure of your time sequence.
He is sitting -> happening right now.
But: is he still living there now or not?
If so, In addition to Michael's correct answer, you could say "has been living" it the first part of the sentence and keep "has never created" at the end. Both actions that started in the past and are continuing.
If he not living there now (but did in the past), you want "lived" and then "never created." Both completed past actions.