£700k on a house in Ashford?! Sorry but would agree with others that it just isn’t very nice!
Kent is lovely with some beautiful towns and villages and countryside. Because of our education system, it is somewhere you have to really carefully look into before you buy though so you don’t end up in a bad school area if you don’t plan to go private (and to be clear, you really don’t need to go private unless of course it’s your preference).
Sevenoaks is usually where a lot of people start looking as the commute is circa 30 minutes. £700k would get you a decent if not huge property! On the state school side - if DC are bright then the Tonbridge boys and girls grammars are in catchment (Weald, Judd, Tonbridge Girls Grammar). If DC don’t pass the 11+ then the comp (Knole Academy) isn’t most people’s first choice but is better than its poor reputation.
I’m technically Sevenoaks but live in one of the villages surrounding it (Borough Green). There are lots of very pretty villages here but you’d want to avoid the ones with no train station as the drive into Sevenoaks of a morning is a nightmare! You’d get more house for £700k here & next door Wrotham & Platt than you would in Shoreham and Otford. We also have our own train station (Borough Green and Wrotham), frequent trains into Victoria and Blackfriars, good/outstanding Primaries, a good state Secndary (Wrotham) and we’re in the catchment area for the Tonbridge/Tunbridge Wells and Maidstone grammars.
Tonbridge and Tunbridge Wells are both great options if you want a town. Tonbridge properties are cheaper than Tunbridge Wells, the commute is better, the good school options a bit broader too if you don’t go the 11+ route. The shops and feel of Tunbridge Wells are more upmarket though.
Avoid Maidstone. It’s over the 45 minute commute. You’d get a big property for £700K, it’s got decent shopping and some nice historic buildings in the town but it does have big problems with both drugs and homelessness. With apologies to anyone living there, there is a definite rough element. Some of the villages surrounding it are lovely but not all have stations. If DC don’t pass the 11+ or you’re not Catholic then the state options are poor.
Also take a look at Meopham (Pronounced Mep ham -it’s state Secondary (Meopham) is currently I believe the best state secondary in Kent. You’d also be in a couple of grammar catchment areas. I believe (I’ll check in a minute) it has its own station. The house prices are all decent too. It’s not the prettiest town in Kent (but neither is it the ugliest) and the shopping is limited though.
Altogether, moving here is a bit of a balancing act between commute, house prices and schools but plenty of us have done it from London. Good luck. Feel free to pm me.