UK EPC Check

Notable findings

Patterns that stand out when you look at every UK Energy Performance Certificate at once.

Most efficient local authorities

Authorities with the highest average current efficiency score. Sample size at least 500 certificates.

  1. 01Tower Hamlets142,404 certificates · 35.3% A/B74.4
  2. 02City of London7,032 certificates · 25.2% A/B71.3
  3. 03Milton Keynes108,835 certificates · 23.5% A/B71.2
  4. 04Southwark122,949 certificates · 22.1% A/B70.5
  5. 05Greenwich110,885 certificates · 25.4% A/B70.4
  6. 06Hackney108,612 certificates · 18.0% A/B70.1
  7. 07Eastleigh48,576 certificates · 21.5% A/B70.0
  8. 08Salford138,490 certificates · 21.0% A/B70.0
  9. 09Dartford41,528 certificates · 27.0% A/B69.9
  10. 10Cambridge53,141 certificates · 22.7% A/B69.9
  11. 11Newham135,098 certificates · 24.3% A/B69.7
  12. 12Bracknell Forest46,841 certificates · 18.1% A/B69.7
  13. 13Telford and Wrekin73,372 certificates · 21.5% A/B69.6
  14. 14Vale of White Horse55,450 certificates · 27.4% A/B69.5
  15. 15Tewkesbury36,774 certificates · 27.1% A/B69.4

Least efficient local authorities

Authorities with the lowest average current efficiency score. Sample size at least 500 certificates.

  1. 01Isles of Scilly1,180 certificates · 32.5% F/G47.1
  2. 02Ceredigion31,687 certificates · 17.4% F/G55.5
  3. 03Gwynedd47,881 certificates · 18.3% F/G55.6
  4. 04Isle of Anglesey31,469 certificates · 15.6% F/G58.0
  5. 05Powys52,045 certificates · 14.4% F/G58.5
  6. 06Carmarthenshire71,899 certificates · 12.5% F/G59.2
  7. 07West Devon21,926 certificates · 14.0% F/G59.5
  8. 08Pendle39,952 certificates · 7.5% F/G59.6
  9. 09Blackpool77,701 certificates · 7.7% F/G59.6
  10. 10Denbighshire40,596 certificates · 10.0% F/G60.1
  11. 11North Norfolk46,377 certificates · 9.8% F/G60.1
  12. 12Conwy47,625 certificates · 9.3% F/G60.4
  13. 13Cornwall245,422 certificates · 12.6% F/G60.4
  14. 14Pembrokeshire48,431 certificates · 11.2% F/G60.4
  15. 15East Lindsey66,062 certificates · 10.3% F/G60.6

Biggest improvement potential by authority

Authorities with the largest gap between average current and average potential efficiency. The biggest collective wins if every recommendation were carried out.

  1. 01Isles of Scilly47.1 → 81.3+34.2
  2. 02Ceredigion55.5 → 82.5+27.1
  3. 03Gwynedd55.6 → 81.6+26.0
  4. 04Isle of Anglesey58.0 → 83.2+25.2
  5. 05Powys58.5 → 83.0+24.6
  6. 06Carmarthenshire59.2 → 82.9+23.8
  7. 07West Devon59.5 → 82.8+23.3
  8. 08Torridge60.8 → 83.6+22.8
  9. 09North Norfolk60.1 → 82.7+22.5
  10. 10Cornwall60.4 → 82.8+22.4
  11. 11Pembrokeshire60.4 → 82.5+22.1
  12. 12Pendle59.6 → 81.7+22.0
  13. 13King's Lynn and West Norfolk61.2 → 83.1+21.9
  14. 14Derbyshire Dales61.6 → 83.4+21.8
  15. 15East Lindsey60.6 → 82.5+21.8

Oldest certificates still on the register

EPCs are valid for 10 years; these are the oldest still recorded and likely overdue a refresh.

  1. 0131, Lawdley RoadForest of Dean · 28 Oct 201015 yr
  2. 0229, Lawdley RoadForest of Dean · 28 Oct 201015 yr
  3. 0323, Lawdley RoadForest of Dean · 28 Oct 201015 yr
  4. 0435, Barnsley WayCotswold · 05 Nov 201015 yr
  5. 0530, New RoadWalsall · 05 Nov 201015 yr
  6. 0686, Barnsley WayCotswold · 05 Nov 201015 yr
  7. 0784, Barnsley WayCotswold · 05 Nov 201015 yr
  8. 0837, Barnsley WayCotswold · 05 Nov 201015 yr
  9. 09The Larch HouseStroud · 07 Dec 201015 yr
  10. 10Peel CottageNorth Yorkshire · 07 Dec 201015 yr
  11. 1133, Fox FieldFlintshire · 09 Dec 201015 yr
  12. 12Woodlands HouseCentral Bedfordshire · 10 Dec 201015 yr
  13. 1360, The RidgewayMedway · 14 Dec 201015 yr
  14. 147 Alana HeightsWaltham Forest · 04 Jan 201115 yr
  15. 1543 Alana HeightsWaltham Forest · 04 Jan 201115 yr

Newest A-band properties

Most recently lodged certificates rated band A. These are almost always new build or freshly retrofitted.

  1. 0124 Hewlett Place- · BS29 6FS30 Apr 2026
  2. 028 Beeston CrescentEast Hertfordshire · CM23 0AA30 Apr 2026
  3. 038 Bryn HeulogPembrokeshire · SA69 9EH30 Apr 2026
  4. 0424 Dempsey RoadRushmoor · GU11 4DL30 Apr 2026
  5. 051 Bedlington RowBolsover · S44 5PW30 Apr 2026
  6. 0620 Parkinson CloseFenland · PE15 0GZ30 Apr 2026
  7. 0736 Ringlet GardensNorth Tyneside · NE29 8FB30 Apr 2026
  8. 08South BarnWest Suffolk · IP28 8JF30 Apr 2026
  9. 095 Karakul Gardens- · MK8 1NJ30 Apr 2026
  10. 1011 Buttercup Way- · SA61 2UU30 Apr 2026
  11. 1123 Jubilee WayTonbridge and Malling · ME19 4NR30 Apr 2026
  12. 121 Waungron RoadCardiff · CF5 2JJ30 Apr 2026
  13. 1341 Lysander Road- · NN8 3GU30 Apr 2026
  14. 14130 Russell RoadCentral Bedfordshire · LU5 6QF30 Apr 2026
  15. 1513 Park Wood HouseSomerset · BA5 1LN30 Apr 2026