Figures based on Land Registry data, giving averages for each road based on the mean of all non-commercial sale prices in 2014, show that Newcastle has six of the top ten most expensive streets in the North East of England. All of these streets are in either Jesmond or Gosforth. Osborne Villas, Jesmond, and Elmfield Road, Gosforth, came top and both had averages over £990,000.
The Chronicles’s news story has a gallery of images of these streets and details of average sales values (Feb 25th 2015): http://www.chroniclelive.co.uk/lifestyle/property/north-easts-top-ten-expensive-8709250
Don’t be deceived by averages. There are plenty of houses for sale well above the million mark in these two areas as this Chronicle feature article describes (Feb 6th 2015): http://www.chroniclelive.co.uk/lifestyle/property/houses-sale-newcastle-look-ten-8585669