I might have found an address thanks to someone on a Beddgelert facebook page. So I will investigate that with the census as you suggest. thank you.
the peculiar bits are the fact he apparently never did any training of any sort, did absolutely nothing for the vast majority of the war, had random hospital visits to very out of the way hospitals he apparently was nowhere near with no reasons noted on his records and he wasn't where he needed to be to have met my grandmother, didn't go on his own honeymoon according to his records, received random extra payments for who knows what and yet he said he had been in Norway early in the war, did training in Beddgelert and the Hebrides. oh and he never even qualified for the medals that everyone qualified for even if they never left the UK. It doesn't add up at all.
He was in the RWF so yes possibly was there doing target practice I suppose.
thank you