Terraced rows climb the hillside here in short, tight streets, the kind of place where cars are parked half on the pavement and the valley drops away behind the houses. Pen-yr-heolgerig sits above Merthyr Tydfil proper, and it looks and feels like a settled, working community rather than a place reinventing itself — net curtains, a few For Sale boards, nobody rushing anywhere. The housing stock tells you most of what you need to know before you even get to the numbers. Almost everything that sells here is terraced and freehold — no leasehold complications, no new-build estates — and the median sale price of £161,500 sits well under the Welsh average of £208,000, though it's still comfortably above what the wider Merthyr Tydfil borough typically fetches. That combination — cheap by national standards, pricier than its own council area — is the story of a suburb that's a notch above the town it belongs to. Schools-wise, Cyfarthfa Park Primary serves the area; Wales doesn't run an Ofsted system, so there's no grade to quote, but it's a sizeable community school with over 400 pupils, which says something about the steady demand from local families. The median age of 43 backs that up: this isn't a young professionals' postcode, it's people who've been here a while. Green space is thin on the ground in the literal sense — one recorded space, under two hectares — so this isn't an area built around parkland weekends; if you want a proper walk you're heading out of the immediate suburb rather than round the corner. What stands out instead is the environment grade, which comes back as the strongest mark in the whole profile, well above the Welsh average, a signal that air quality and surroundings score better than the built density around you might suggest. Broadband is solid too, with three-quarters of premises on full fibre, so working from one of these terraced houses is a realistic option even without a rail commute to lean on. The number that needs saying plainly is crime. The overall grade sits at a respectable B, safety alone drops to a C, and the raw comparison against Merthyr Tydfil borough is stark — the local crime rate runs far above the council-wide figure, with violence and sexual offences alone accounting for close to a third of recorded incidents, followed by shoplifting and anti-social behaviour. That's the out-of-step grade in an otherwise unremarkable profile, and it's worth sitting with rather than skating past. On deprivation, Pen-yr-heolgerig sits in the third decile in Wales, among the more deprived third nationally, which lines up with the affordability of the housing and the character of the streets rather than contradicting it. This reads as a place for people who know Merthyr already, want a foothold that's cheaper than the Welsh norm, and are prepared to treat the safety figures as a genuine factor rather than background noise.