N.B. Having read further, A. kochiella is double brooded and it seems only the Summer generation is white. The over Wintering 2nd generation is usually much greyer. If this is always the case, the moth would have to be Acleris logiana. I have sent these images on to the recorder for confirmation.
.........now confirmed by David Manning, VC30 Micro Recorder.
At home I recorded a Winter Moth, which was new for the year- giving me 5 garden species so far.