Conservation areas in Hillingdon
London Borough of Hillingdon has 32 conservation areas in planning.data.gov.uk; 8,100 homes inside them have an energy certificate, and 25.5% of those are solid-wall homes without wall insulation. The largest by number of homes is Botwell: Nestles (1,204). 32 of the areas overlap an Article 4 direction that removes rights for windows, roofs, solar or heat pumps. The council publishes its 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 |
|---|---|---|---|---|---|---|
| Black Jacks Lock | 4 | 100% | 0% | 0 | 1 | removes some rights |
| Botwell: Nestles | 1,204 | 0% | 0% | 0 | 0 | removes some rights |
| Botwell: Thorn EMI | 528 | 5% | 0% | 0 | 1 | removes some rights |
| Bulls Bridge | 0 | — | — | 0 | 1 | removes some rights |
| Copper Mill Lock | 3 | 67% | 0% | 0 | 0 | removes some rights |
| Coppermill Lock | 108 | 6% | 61% | 2 | 3 | removes some rights |
| Cowley Church (St. Laurence) | 8 | 38% | 88% | 0 | 2 | removes some rights |
| Cranford Park | 370 | 11% | 85% | 12 | 12 | removes some rights |
| Denham Lock | 0 | — | — | 0 | 1 | removes some rights |
| Eastcote (Morford Way) | 32 | 94% | 97% | 0 | 0 | removes some rights |
| Eastcote Park Estate | 114 | 82% | 99% | 0 | 0 | removes some rights |
| Eastcote Village | 108 | 36% | 92% | 0 | 23 | removes some rights |
| Harefield Village | 664 | 25% | 86% | 10 | 24 | removes some rights |
| Harlington Village | 279 | 19% | 55% | 1 | 9 | removes some rights |
| Harmondsworth Village | 286 | 27% | 77% | 0 | 19 | removes some rights |
| Hayes Village | 461 | 31% | 84% | 0 | 5 | removes some rights |
| Hillingdon Village | 125 | 21% | 94% | 0 | 15 | removes some rights |
| Ickenham Village | 569 | 35% | 85% | 2 | 21 | removes some rights |
| Longford Village | 70 | 9% | 37% | 0 | 7 | removes some rights |
| Northwood Town Centre, Green Lane | 193 | 50% | 75% | 0 | 2 | removes some rights |
| Northwood, Frithwood | 170 | 41% | 98% | 0 | 0 | removes some rights |
| Old Uxbridge / Windsor Street | 19 | 63% | 42% | 0 | 15 | removes some rights |
| Old Uxbridge / Windsor Street | 210 | 9% | 42% | 5 | 28 | removes some rights |
| Rockingham Bridge, Uxbridge | 241 | 52% | 83% | 0 | 0 | removes some rights |
| Ruislip Village | 748 | 31% | 71% | 3 | 22 | removes some rights |
| Ruislip, Manor Way | 195 | 39% | 98% | 2 | 0 | removes some rights |
| Springwell Lock | 37 | 11% | 11% | 1 | 1 | removes some rights |
| The Glen, Northwood | 39 | 0% | 97% | 0 | 0 | removes some rights |
| The Greenway | 437 | 54% | 93% | 1 | 0 | removes some rights |
| Uxbridge Moor | 70 | 16% | 100% | 0 | 2 | removes some rights |
| West Drayton Green | 807 | 34% | 79% | 3 | 38 | removes some rights |
| Widewater Lock | 1 | 100% | 0% | 0 | 1 | removes some rights |
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