Deri sits up in the valleys above Caerphilly, the kind of place where terraced rows in dark stone climb the hillside and the houses outnumber the amenities by some distance. There's a hush to it — this is a village of only a couple of dozen households by the numbers that matter for pricing, so what you're buying into isn't a high street but a hillside community where everyone's face is familiar and nothing much moves without someone noticing. There's one school here, Deri Primary, a small community school with around 74 pupils — the kind of setting where your child is a name to every teacher, not a face in a crowd, though you won't find Estyn's verdict spelled out in the numbers, just the fact of its presence anchoring the place. Six bus stops serve the village rather than a station, so this reads as a car-and-bus community rather than a rail-commuter one — if you're chasing a fast train into Cardiff, Deri asks you to drive to it first. Housing here is terraced and freehold almost without exception, and the price tag tells its own story: a median sale around £125,000 puts Deri roughly a third cheaper than the wider Caerphilly borough, and near the bottom of the price scale across Wales as a whole. A For Sale board on this street is advertising a starter home or a downsizer's cottage, not a renovation project with room to negotiate on tenure. Green space is modest but present — five plots amounting to a few hectares, enough for a dog walk or a kids' kickabout rather than a proper ramble, and there's no named pub or restaurant in the record to suggest much of a night out on the doorstep, so your Saturday here is more likely to be spent driving into Caerphilly or Bargoed for a proper meal out than walking to one. What stands out, and what genuinely earns its place at the centre of this piece, is how quiet the place is on crime — a single recorded incident in the past year, which is a startling number set against a crime rate that on paper reads as vastly higher than the Caerphilly average; that's a quirk of tiny populations skewing percentage comparisons, not a warning sign, and the village's own safety grade — the highest band going — backs up the lived reality over the raw ratio. The character grades draw a coherent picture: strong on safety and environment, solid on affordability and housing, a little softer on connectivity, which matches a place with fibre broadband reaching most homes but no rail line to speak of. This suits someone who wants a cheap freehold roof over their head, doesn't mind driving for shops, restaurants or a train, and values knowing their neighbours over having options on the doorstep. It would suit less well anyone who needs a fast commute or an evening economy within walking distance — those things simply live elsewhere, and Deri doesn't pretend otherwise.