If you already have enough experience of Newcastle to know that you don't want to spend the next three years living there, then don't go to Northumbria. (Presumably you didn't realise how much you disliked the area until after submitting your UCAS form, otherwise you wouldn't have applied there?).
The BA Architecture degree at Lincoln doesn't give Part 1 exemption,, though, which I think the course at Northumbria does?