Conservation areas in Dacorum
Dacorum Borough Council has 23 conservation areas in planning.data.gov.uk; 4,271 homes inside them have an energy certificate, and 48.9% of those are solid-wall homes without wall insulation. The largest by number of homes is Berkhamsted (1,920). The council does not publish Article 4 areas on planning.data.gov.uk. EPC register November 2026.
| Conservation area | Homes with EPC | Solid walls, no insulation | Gas boiler | Heat pumps | Listed buildings | Article 4 |
|---|---|---|---|---|---|---|
| Aldbury | 126 | 57% | 83% | 2 | 25 | not published by council |
| Berkhamsted | 1,920 | 49% | 88% | 5 | 61 | not published by council |
| Bovingdon | 94 | 48% | 89% | 1 | 13 | not published by council |
| Chipperfield | 156 | 47% | 91% | 5 | 38 | not published by council |
| Dudswell | 12 | 50% | 92% | 0 | 4 | not published by council |
| Flamsted | 40 | 60% | 78% | 8 | 27 | not published by council |
| Flaunden | 31 | 61% | 87% | 2 | 13 | not published by council |
| Frithsden | 6 | 83% | 100% | 0 | 5 | not published by council |
| Great Gaddesden | 16 | 25% | 0% | 0 | 13 | not published by council |
| Hemel Hempstead Old Town | 169 | 50% | 59% | 0 | 61 | not published by council |
| Kings Langley | 153 | 29% | 64% | 0 | 40 | not published by council |
| Little Gaddesden | 107 | 45% | 7% | 27 | 27 | not published by council |
| Long Marston | 87 | 32% | 82% | 4 | 17 | not published by council |
| Markyate | 197 | 57% | 80% | 1 | 32 | not published by council |
| Nettleden | 5 | 20% | 100% | 0 | 10 | not published by council |
| Northchurch | 122 | 60% | 93% | 0 | 9 | not published by council |
| Piccotts End | 65 | 51% | 89% | 1 | 17 | not published by council |
| Potten End | 38 | 84% | 100% | 0 | 4 | not published by council |
| Ringshall | 26 | 62% | 4% | 0 | 5 | not published by council |
| Tring | 803 | 48% | 82% | 3 | 53 | not published by council |
| Water End | 14 | 57% | 7% | 1 | 17 | not published by council |
| Wilstone | 79 | 43% | 72% | 9 | 8 | not published by council |
| Winkwell | 5 | 40% | 20% | 0 | 3 | not published by council |
Areas with at least 30 homes with an energy certificate have their own page. Areas drawn only as a point in planning.data.gov.uk have no boundary, so no homes are counted. England, all conservation areas: 48.7% solid walls without insulation, 66.4% gas boilers.
What needs planning permission in a conservation area
Guides: Heat pumps · Solar panels · External wall insulation · Replacement windows · Am I in a conservation area? Postcode checker