Home energy certificates · Higher than most
Median energy-efficiency score
71
Among the highest 10% of the 106 towns and cities in Wales.
Energy Performance of Buildings data · Lodgements to 2026-08-17
Town guide · Town · Wales
Explore house prices and housing, home energy and crime and safety in Sarn, Tondu and Bryncethin. This local area guide brings together 463 published figures for this town in Wales, with the source and date shown for each.
Area snapshot
Every figure keeps the geography and source it was published for.
Tip: select the star on any figure to pin it here for comparing across topics.
Each line runs from one value to the other, so the gap is easy to see. Higher and lower describe the number only, not whether it is better or worse.
£161 above Average across published towns and cities in Wales
382.123 below Average across published towns and cities in Wales
£4,105 below Average across published towns and cities in Wales
3.3 percentage points above Average across published towns and cities in Wales
£107 above Average across published towns and cities in Wales
£375 above Average across published towns and cities in Wales
3.9 percentage points above Average across published towns and cities in Wales
In line with Average across published towns and cities in Wales
In line with Average across published towns and cities in Wales
£8,061 below Average across published towns and cities in Wales
The scale is logarithmic, with marks at 100 m, 1 km and 10 km.
Explore this guide
Choose a topic to see every available figure for this location. If a source should cover this area but has no figure, we say so rather than showing zero.
Figures in the highest or lowest tenth of their published comparison group. Higher and lower describe the number only, not whether it is better or worse.
Home energy certificates · Higher than most
71
Among the highest 10% of the 106 towns and cities in Wales.
Energy Performance of Buildings data · Lodgements to 2026-08-17
Home energy certificates · Higher than most
98.6%
Among the highest 10% of the 106 towns and cities in Wales.
Energy Performance of Buildings data · Lodgements to 2026-08-17
Crime & emergency services · Lower than most
-23.0%
Among the lowest 10% of the 103 towns and cities in Wales.
Police.uk street-level crime and outcomes · 2026-06
Local energy · Higher than most
1
Among the highest 10% of the 106 towns and cities in Wales.
Heat Networks Planning Database · Q1 2026
Every figure belongs to one of these groups, so you always know whether you are reading about the whole place, a neighbourhood, or the wider council area.
108
Whole town
Totals and figures for the town boundary
39
Neighbourhood range
Lowest, median and highest across local areas
249
Around the centre
A representative location in the town
67
Wider council area
Named council areas around the town
The small numbers after figure labels refer to this key. They show how a figure was made, not how accurate it is. Open any figure to see its source, date and important limits.
Published council-wide context for councils linked to Sarn, Tondu and Bryncethin, not a finding about the whole place or a property.
These records are published for councils linked to known active postcodes in this place. The councils cover a wider area: a listed designation is not a finding that it intersects this town or any property. The list may not be exhaustive. AQMAs are management designations, not measured pollution concentrations, property exposure or clean-air charging zones. Absence of a designation is not evidence of clean air. Great Britain only; Northern Ireland mapping is not included.
Bridgend · council-wide context
Declared pollutant objectives: nitrogen dioxide.
The area comprising the Bridgend County Borough Council Air Quality Management Area Order No. 1, Park Street is that contained within the following boundary:-The designated area borders the green space area prior to the rear entrance of properties loca
Official UK-AIR designation recordRegister snapshot: 2026-10-20. Imported 25 October 2026.
Broadband and mobile connectivity
Ofcom publishes these fixed-broadband, full-fibre take-up and mobile coverage profiles for named local and unitary authorities, rather than for town boundaries. They are shown as wider council-area context for Sarn, Tondu and Bryncethin; availability figures are provider predictions, not measurements at every address.
These highlights come from complete all-premises and residential broadband profiles, both published full-fibre take-up measures, the complete 2G, 3G, 4G, voice, 5G and standalone-5G network-count profiles, and the premises and grid-pixel counts used as the mobile basis. View every published broadband, full-fibre and mobile value.
Published source details for this wider council-area context:
463 sourced figures are listed here with the source, period and geography. Open a topic above for comparisons and detailed explanations.