Conservation areas in Portsmouth
Portsmouth City Council has 25 conservation areas in planning.data.gov.uk; 9,270 homes inside them have an energy certificate, and 15.7% of those are solid-wall homes without wall insulation. The largest by number of homes is Owen's Southsea (1,550). 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 |
|---|---|---|---|---|---|---|
| Campbell Road, Southsea | 742 | 11% | 79% | 5 | 0 | not published by council |
| Castle Road | 509 | 24% | 69% | 1 | 13 | not published by council |
| Craneswater and Eastern Parade, Southsea | 648 | 2% | 77% | 0 | 0 | not published by council |
| East Southsea | 1,354 | 10% | 63% | 8 | 4 | not published by council |
| Eastney Barracks | 187 | 25% | 96% | 0 | 11 | not published by council |
| Essex Road | 25 | 0% | 96% | 0 | 0 | not published by council |
| Guildhall and Victoria Park | 54 | 2% | 19% | 1 | 29 | not published by council |
| Gunwharf | 779 | 2% | 17% | 0 | 5 | not published by council |
| HM Naval Base and St George's Square | 309 | 6% | 39% | 0 | 48 | not published by council |
| Highland Terrace | 21 | 52% | 100% | 0 | 1 | not published by council |
| Hilsea Lines | 0 | — | — | 0 | 0 | not published by council |
| King Street | 359 | 18% | 83% | 0 | 12 | not published by council |
| Mile End, Landport | 86 | 13% | 66% | 0 | 8 | not published by council |
| Milton Locks | 0 | — | — | 0 | 1 | not published by council |
| Old Portsmouth | 775 | 10% | 75% | 13 | 93 | not published by council |
| Old Wymering | 41 | 2% | 95% | 0 | 15 | not published by council |
| Owen's Southsea | 1,550 | 23% | 72% | 1 | 49 | not published by council |
| Portsea | 323 | 18% | 55% | 0 | 12 | not published by council |
| Rochester Road | 18 | 0% | 100% | 0 | 0 | not published by council |
| St Andrew's Church, Eastney | 9 | 11% | 100% | 0 | 0 | not published by council |
| St David's Road, Southsea | 116 | 3% | 84% | 0 | 0 | not published by council |
| St Mary's Churchyard, Fratton | 173 | 4% | 58% | 7 | 5 | not published by council |
| Stanley Street, Southsea | 30 | 33% | 100% | 0 | 1 | not published by council |
| The Sea Front, Southsea | 848 | 35% | 75% | 3 | 20 | not published by council |
| TheTerraces | 314 | 35% | 85% | 0 | 18 | 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