We've seen a house we like, it's not perfect (small third bedroom) but nicely extended downstairs, doesn't need any work, has a big garden, it's in a good catchment area, just outside a big city, and it's close to amenities. It's an expensive area and we've been outbid several times. This one ticks most boxes but it has a railway line at the bottom of the garden. Two trains went past at viewing, it wasn't excessively loud but we could hear them. Obviously in the garden it would be louder.
In an ideal world, we'd not have trains passing, but it's hard to find something in this area as it's one of the few suburbs with excellent schooling. Would you/have you lived on a train line? For info, it's a single track suburban line with no freight trains but commuter trains passing every 15 mins from 6am-midnight.