Finding extended homes…
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Homes within 1 km whose energy certificates show the floor area growing: extensions, loft and garage conversions. Tap a home on the map or in the list for its full history. Back to NP12 2NH
Not every extension shows here. We only see building work when a new energy certificate is lodged, which happens when a home is sold, let or newly built. A loft or extension added since then won't appear, even with planning permission and building control sign-off, because those records aren't published as open data outside London. Missing work doesn't mean missing paperwork.
| Home | Before | After | Added | Recorded |
|---|---|---|---|---|
| Maesawelon, Heol Y Coed0 m away | 123 m² | 157 m² | +34 m² +28% | 2021 |
| 18, The Glade566 m away | 202 m² | 233 m² | +31 m² +15% | 2023 |
| 3, Gelli Lane856 m away | 59 m² | 88 m² | +29 m² +49% | 2023 |
| 17, Pen Y Cwarel Road193 m away | 68 m² | 85 m² | +17 m² +25% | 2012 |
From energy performance certificates (MHCLG): a later certificate shows at least 15 m² and 15% more floor area than an earlier one (and no more than 2.5 times, to leave out typing errors). Some changes come from a more careful measurement rather than building work. Addresses: HM Land Registry. Contains HM Land Registry data © Crown copyright and database right 2026, OGL v3.0.