Looks prerendered.
Fancy seeing these folks again! They did a Sherlock Holmes / Cthulhu mythos crossover adventure game in full 3D - so perhaps there's some real time stuff going on here. Certainly the first screenshot reminds me of their Sherlock Holmes game (notice that there's apparently nothing at all outside the walls of that suspiciously well-lit cemetery).
They really need to work on their lighting, and perhaps more interesting architecture + texture work is in order, too.
But the large areas would be nice
It's probably bigger than it looks, but that's not saying much, since they haven't bothered to create convincing backdrops to frame stuff. The courtyard seems to be floating in a featureless void, for instance.
The N64 CVs actually do pretty well for scale.