Where I live in Asia, the nearest middle school is over an hour's drive away, so the kids over 12 (some as young as 11) attend a boarding school during the week. There have been a few who have done the commute daily, but it's taxing. Some kids adjust well to boarding school; some have serious homesickness.

At what age does this boarding school allow (non-accelerated) boarders? If there will also be 11/12 year-old boarders, even if your son would be in a different year group, it may be a better fit. If boarding doesn't start until 13/14, and your son is 10/11, that's a big gap, particularly since boarding involves lots of afterschool activities (like sports) that may be challenging with such a big gap.