Firstly Norwich (the town centre of it) is about 15 mins by bus, the area in itself is brilliant everything is nearby and it's easy to find your way round. There's the 25 and 25a which take you into town and that's all day every day- they run every 10 minutes too!
I'm a biological sciences student, thus far I'm loving every moment of it. The uni is a great size, you end up meeting a lot of people very quickly and you end up seeing the same people around which is lovely. Even despite the large amount of concrete, the view of the broad makes up for it particularly at night
so you have a nice balance between them.
I can't help you with actuarial science unfortunately, sorry.
I would definitely recommend the uni, coming here was one of the best choices I made