I love horse chestnut trees! They're gorgeous.
I like REAL chestnuts the best of all though.
My very favorite recipe for poultry stuffing (dressing) contains Chestnuts, Cranberries, Crumbled stale cornbread, Sage, Rosemary, Celery, Walnuts, and Vegetable broth.

OMG it's to die for. I can't wait for Thanksgiving!!!!!

As for space for 5 conker trees in your garden.... what do you have, like a FARM? Lucky guy.