What the figures for Heol-ddu cover
Every figure on this site comes from official or open public data. This page shows, for each one, the area it covers, the period, the source and when we last updated it.
Heol-ddu is part of the community of Llangyfelach.
Official statistics are published for parishes and census areas, not for every village and hamlet, so there are no separate figures for Heol-ddu. Property, crime, broadband, food hygiene, businesses and population are for all of Llangyfelach community (2,373 residents). Flood risk, planning, transport and weather are measured from Heol-ddu itself, and schools include the nearest to Heol-ddu.
Figure by figure
| Figure | Covers | Period | Source | Last updated |
|---|---|---|---|---|
| Population | Usual residents of the community of Llangyfelach | Census 2021 | ONS Census 2021 | 17 Oct 2026 |
| Property | Residential sales at postcodes in the community of Llangyfelach | 12 months to Jun 2026 | HM Land Registry Price Paid Data | 6 Aug 2026 |
| Crime | Crimes reported in the 4 neighbourhood areas (census LSOAs) covering the community of Llangyfelach; the rate is per 1,000 residents of those areas | 12 months to Jun 2026 | police.uk | 6 Aug 2026 |
| Broadband | Postcodes in the community of Llangyfelach | Speeds measured 2023, availability 2025 | Ofcom Connected Nations | 30 Sept 2026 |
| Schools | Open schools in the community of Llangyfelach, plus the nearest others within 5 km of Heol-ddu | Pupils from the January school census | Welsh Government, via DataMapWales, My Local School and Estyn | 8 Oct 2026 |
| Food hygiene | Food businesses at postcodes in the community of Llangyfelach | Latest inspection for each business | Food Standards Agency | 6 Aug 2026 |
| Businesses | Active companies with their registered office in the community of Llangyfelach. A registered office is not always where a company trades. | Current register | Companies House | 6 Aug 2026 |
| Local trades | Active companies whose main activity is a trade, registered in the SA5 postcode district, those in the community of Llangyfelach first | Current register | Companies House | 6 Aug 2026 |
| Planning | Applications within 5 km of the centre of Heol-ddu | Last 12 months | PlanIt, from council planning registers | 21 Oct 2026 |
| Flood risk | The kilometre square around the centre of Heol-ddu; nearest river measured from the centre | Flood Risk Assessment Wales 2026 | Natural Resources Wales (FRAW), OS Open Rivers | 21 Oct 2026 |
| Transport | The stations nearest to Heol-ddu, with walking routes from its centre | Departures live | National Rail, NaPTAN, OpenStreetMap | Live |
| Weather | The location of Heol-ddu | Live forecast | MET Norway | Live |
| National comparisons | England and Wales (broadband: the UK), worked out from the same datasets as the local figures | Same periods as above | Our own calculation | 3 Oct 2026 |
Contains public sector information licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right. Map and route data © OpenStreetMap contributors. Weather from MET Norway (CC BY 4.0). Planning data from planit.org.uk.