Thanks everyone for your quick replies!
We did look at the coastal areas on our last visit up, but my husband wasn't too keen on them - he felt they might be too rowdy at weekends...? And prices were more into the £400k for our desired house.
I had thought about the south Tyne Valley area (Wylam, Ryton, Prudhoe etc), so will add it to our list of places to visit.
Washington - I did see houses on Rightmove I liked, but wasn't sure on the schools. But will do some more investigating into that area.
A friend-of-a-friend had recommended Whickham, possibly Sunniside village just outside, so that's on our list to visit.
Our next trip up (hopefully December depending on lockdown) will include
Chester-le-street,
Whickham,
Pelton Fell (just because we've seen a house we like, although I've previously read it's not that great)
Washington
South Tyne Valley villages.
Good to know about the traffic on A1 too, northbound from Chester-le-street.
I've got a feeling we'll end up renting first before we buy, but I'd like to have a confident area chosen first to rent within to minimise school moving.
We also looked at Newcastle Great Park (on paper it sounded great), but we didn't vibe with it, it was a little too purpose built for our taste, although you defo get value for money!
Thank you again for you're thoughts, it's a big move for us, so I'm being slightly obsessive with my research and weighing up pros/cons of each place. Visiting helps a lot because I find I either connect with somewhere or instantly know I can't picture living there.
Lydia x