Picking the right motivation will help, "I can't be bothered coming into the office everyday" won't work but "I'm wanting to move away from the city for X/to do Y" gives you a good reason to be asking about it. If you truly feel like remote is for you, you'll have to present the case at some point to your boss, even if informally at first. If they are against the idea, you can start looking for a new, remote, job.