http://www.bbc.co.uk/news/uk-wales-sout ... s-30997185As expected, the concerned citizens of Llandaf have found reasons to oppose development of a brownfield site.
Now I agree something that looks a bit different to your usual red-brick development should go here. Perhaps using a mix of pastel renders, and stone (or that reconstituted stone they use on some new builds). Keep some nice wide grass verges, or front gardens too, to keep the open feel of the place.
But, it looks like this objection is more fundamental than that. We'll see concerns about traffic (which will surely be less than the BBC generates), noise and disruption during construction, schools (which in this part of the city aren't subject to capacity issues AFAIK), about the extra homes changing the character of "Llandaf village" (which in reality has been a suburb of Cardiff for close to 100 years).
With each application for housing running into opposition immediately - and generally, not very constructive opposition - I hold increasingly to the view that people are motivated largely by selfishness rather than any principle about "sustainability" or "fairness". I see this also in my work on taxes and benefits - where each group objects to any hits to them, while pointing at others to hit. I'm (almost) too jaded to care.