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 DE21 5BA
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 |
|---|---|---|---|---|
| 5, Whittaker Lane415 m away | 136 m² | 275 m² | +139 m² +102% | 2024 |
| 3, The Chase489 m away | 88 m² | 173 m² | +85 m² +97% | 2017 |
| Horsley Carr, Moor Lane772 m away | 142 m² | 217 m² | +75 m² +53% | 2009 |
| 26, Whittaker Lane415 m away | 81 m² | 146 m² | +65 m² +80% | 2017 |
| 14, Westley Crescent679 m away | 63 m² | 115 m² | +52 m² +83% | 2015 |
| 309, Alfreton Road561 m away | 99 m² | 143 m² | +44 m² +44% | 2025 |
| 17, Whittaker Lane415 m away | 125 m² | 164 m² | +39 m² +31% | 2023 |
| 8, The Chase489 m away | 89 m² | 115 m² | +26 m² +29% | 2019 |
| 5, The Leys566 m away | 73 m² | 97 m² | +24 m² +33% | 2024 |
| 36, The Leys566 m away | 111 m² | 130 m² | +19 m² +17% | 2022 |
| 2, Buxton Drive709 m away | 87 m² | 105 m² | +18 m² +21% | 2026 |
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.