Our attitude has so far been that everything is subject to review, whether allocated or not, to determine whether it is suitable for development (in your case that would be based on your Core Strategy's spatial direction) and in order to satisfy whether development is achieveable, suitable and deliverable, to satisy the tests in PPS3. Although those tests are in PPS3 for housing site consideration, there is no reason why these tests shouldn't be applied to any form of development allocated in the LDF. As you would changing the use of the allocation if you followed the recommedation in your evidence base - I would treat this as if it were a new allocation...as you would have to justify the loss of one potential development site, in favour of another.
