Hello! The form of the second conditional is "If + past simple , would + infinitive" This could be the conditional clause of the second conditional as it says "If you abandoned a town house (and left it) but it has no main clause meaning from what I can see it is somewhat an unfinished conditional. If the next part of the sentence has "would" in it then, yes, it is in the second conditional, however we need more context. If you have any more questions I would be happy to answer them www.italki.com.maddie Good luck!