Posted: 11/02/2013 at 00:13
I posted a similar question on the old BBC forum about 2.5 years ago when we moved into a new build with 15 x 15 meter north facing back garden.
I was advised to make a sun chart. I got a piece of A4 paper drew boxes about 2" square in 4 columns with little gaps below each box. Each column represented the approx time of day; 9-11, 11-1, 1-3, 3-5. I drew (roughly) the sun lounge & shed as reference points in each square. Took several copies. When the sun shone (!) I drew in the appropriate timed square where the line of shade was, & wrote the date under it.
I was pleasantly surprised. We are now just getting a few shafts of sunshine through the gaps between the houses .
Hope this makes sense; I'd nearly finished the first time & it disappeared.