Posted: 01/01/2014 at 20:59
If spuds did ok then the area must get some sun.
You may find, veggies you grow will mature later due to the shade, or the fence/wall creates a micro climate so you can grow stuff people on an allotment can't, for instance I've grown sweetcorn successfully, yet the allotment behind my home can't grow it because the ground is more open to the elements.
I get sun from dawn till dusk but the veg beds are partially over shadowed by a fence, anything grown near the fence tends harvest a few weeks later.
If you are thinking brassicas, cabbage takes up a lot growing space and unless you have an allotment there's little return. Broccoli, swede, turnip, radish (including mooli) take up less space, I grow kohl rabi which does well.
Hope this has been helpful...