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 5ED
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 |
|---|---|---|---|---|
| Hierons Wood, Vicarage Lane579 m away | 315 m² | 530 m² | +215 m² +68% | 2025 |
| 126, Duffield Road877 m away | 404 m² | 615 m² | +211 m² +52% | 2021 |
| Park Farm, Vicarage Lane579 m away | 154 m² | 313 m² | +159 m² +103% | 2015 |
| Wits End, Vicarage Lane579 m away | 182 m² | 251 m² | +69 m² +38% | 2018 |
| Dove Barn, Vicarage Lane579 m away | 247 m² | 313 m² | +66 m² +27% | 2021 |
| 5, Morley Lane711 m away | 277 m² | 342 m² | +65 m² +23% | 2022 |
| 2, Morley Lane711 m away | 71 m² | 133 m² | +62 m² +87% | 2015 |
| 20, Station Road206 m away | 64 m² | 123 m² | +59 m² +92% | 2018 |
| 20, Crab Tree Hill616 m away | 60 m² | 110 m² | +50 m² +83% | 2014 |
| 12, The Town359 m away | 215 m² | 264 m² | +49 m² +23% | 2026 |
| 105, Duffield Road689 m away | 65 m² | 113 m² | +48 m² +74% | 2019 |
| Larwood, Vicarage Lane579 m away | 223 m² | 269 m² | +46 m² +21% | 2024 |
| 1, Woodlea Grove783 m away | 144 m² | 190 m² | +46 m² +32% | 2020 |
| 90, Duffield Road689 m away | 84 m² | 128 m² | +44 m² +52% | 2021 |
| 12, Highfield Road436 m away | 118 m² | 155 m² | +37 m² +31% | 2022 |
| 15, Vicarage Lane579 m away | 154 m² | 187 m² | +33 m² +21% | 2022 |
| 174, Alfreton Road514 m away | 83 m² | 105 m² | +22 m² +27% | 2026 |
| 92, Alfreton Road175 m away | 101 m² | 119 m² | +18 m² +18% | 2018 |
| 2a, Morley Lane711 m away | 96 m² | 114 m² | +18 m² +19% | 2015 |
| 6, Morley Lane711 m away | 78 m² | 95 m² | +17 m² +22% | 2015 |
| 72, Duffield Road689 m away | 62 m² | 77 m² | +15 m² +24% | 2021 |
| 89, Barley Close789 m away | 72 m² | 87 m² | +15 m² +21% | 2018 |
| 96, Alfreton Road175 m away | 99 m² | 114 m² | +15 m² +15% | 2013 |
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.