Conservation areas in Watford
Watford Borough Council has 10 conservation areas in planning.data.gov.uk; 2,639 homes inside them have an energy certificate, and 56.5% of those are solid-wall homes without wall insulation. The largest by number of homes is Nascot (918). 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 |
|---|---|---|---|---|---|---|
| Civic Core | 199 | 26% | 23% | 0 | 5 | not published by council |
| Estcourt | 751 | 69% | 82% | 1 | 1 | not published by council |
| Grove Mill | 21 | 67% | 100% | 0 | 3 | not published by council |
| High Street and King Street | 142 | 40% | 57% | 24 | 15 | not published by council |
| Macdonnell Gardens | 12 | 0% | 100% | 0 | 0 | not published by council |
| Nascot | 918 | 44% | 78% | 9 | 2 | not published by council |
| Oxhey | 380 | 77% | 94% | 4 | 0 | not published by council |
| St Mary's | 41 | 20% | 22% | 7 | 13 | not published by council |
| The Square | 145 | 90% | 98% | 0 | 0 | not published by council |
| Watford Heath | 30 | 60% | 100% | 0 | 0 | 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