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 HP4 1QX
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 |
|---|---|---|---|---|
| Beacon View, Dunstable Road308 m away | 74 m² | 147 m² | +73 m² +99% | 2012 |
| The Waste Land, Dunstable Road513 m away | 66 m² | 137 m² | +71 m² +108% | 2025 |
| Primrose Bungalow, Dunstable Road513 m away | 77 m² | 147 m² | +70 m² +91% | 2025 |
| 2, Chestnut Close188 m away | 119 m² | 179 m² | +60 m² +50% | 2016 |
| 1, Main Road North428 m away | 35 m² | 85 m² | +50 m² +143% | 2011 |
| 7, Main Road North428 m away | 163 m² | 191 m² | +28 m² +17% | 2019 |
| 15, Main Road North428 m away | 98 m² | 121 m² | +23 m² +23% | 2020 |
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.