The area around Long Ashton is green on one side and Bristol on the other, and that split is most of the appeal. Open country starts almost at the doorstep. The city sits a short drive the other way. The Ashton Court estate wraps the edge of the parish. You get fields and a city without being made to choose between them.
Green space is not something you go looking for here, it is something you trip over. A typical address has around eight green spaces within a kilometre and the nearest is only about three hundred metres away, which is close enough that a walk to grass is a decision you make on the way out of the door rather than a trip you plan. Water is nearly as easy to reach, with something like eighteen blue spaces within a kilometre and the closest a little over four hundred metres off. The National Cycle Network runs close to about two-thirds of the village, and Ashton Court, sitting right on the boundary, carries a Site of Special Scientific Interest designation, so the big green lung on the doorstep is protected rather than provisional.
The character follows from the geography. This is a prosperous, settled village of around nine thousand people on the western edge of Bristol, close enough to the city to use it and far enough out to feel like Somerset rather than a suburb. The surrounding places tell you the register: Failand, Abbots Leigh and Wraxall are the sort of neighbours a village keeps when it has decided to stay green, and the parkland estates within reach, Ashton Court nearest and the likes of Tyntesfield and Leigh Court beyond, mean the countryside here comes with grand houses and old walls rather than just open field. Bristol and its smarter districts are a short hop when you want shops, culture or a train, and then you come home to somewhere quiet. It is a place that borrows the city's amenities without taking on the city's noise.
The verdict is easy and unqualified. The setting is the best thing Long Ashton has going for it, a top mark, and it earns the score honestly: green space everywhere, protected land on the boundary, and a major city close enough to be useful but far enough to leave you alone. If your idea of a good area is countryside you can walk to and a city you can reach, this is close to the ideal of it.