All are good except the last. I think you could argue for or against the comma there, but I would leave it out.
The first and third who tells you which of several writers and several houses you mean, so it contains essential information and they don't get a comma.
The second gives additional, non-essential information about the village.
The last two are not about essential or non-essential, but dependent and independent clauses -- when the dependent goes first, it is followed by a comma.
Student or Learner