Round here, 1-bed flat approx £100-120,000,
2-bed flat anything from £120-150,000
2-bed terraced house 135-150,000
3-bed terraced anything from £145-150,000 to about £200,000 depending on size and location
3-bed semi from £160,000 (not so 'nice' bit of town) to about £230,000, with lots in the £180-200,000 bracket.
3-bed detached from about £190,000 upwards
4-bed houses from about £225,000 and upwards, with most 4-bed detacheds costing £235,000 or more.
So a fair amount of scope for moving to bigger homes without too huge a gap.