Tree seeds

I’m not sure which tree these are from - any ideas?

The plumber popped back this afternoon to remove the toilet bowl and basin support before the flooring is fitted next week. Unfortunately there’s a problem with getting hold of the shower doors so we still can’t use the shower but maybe they’ll be ready for when we get back from holiday in a couple of weeks. Fingers crossed - it would be nice to get this finished and think about the main bathroom!