I moved in February to a rented house in Skipton with my son James (who's 12) after my divorce.... so I had to leave my hedghogs behind!! :( I've been in contact with the new onwner since, and she's seen my hedgies in the garden...so... yay! She's thankfully a wildlife lover like us and I know she'll look after them for me! ;)
I'm only 2 miles from my last house... but nothing doing here (bit like you) so is very saddening and frustrating at the same time. I'm moving yet again next month to the vale of York to be nearer my boyfriend and he's got hedgehogs so.... mebbes I can indulge there eh! ;) ;D Sure do miss my spikey friends!!!
Well yr doing everything you can to attract them, so don't lose heart ok. Nature can't be forced.... but it can be persuaded a wee bit lol - carry on the good work and I'm sure you'll be rewarded! ;) :D