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 7LU
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 |
|---|---|---|---|---|
| 19, Church Street794 m away | 114 m² | 206 m² | +92 m² +81% | 2022 |
| 2a, Marina Drive916 m away | 143 m² | 233 m² | +90 m² +63% | 2017 |
| 208, Derby Road0 m away | 115 m² | 166 m² | +51 m² +44% | 2023 |
| 210, Derby Road0 m away | 108 m² | 156 m² | +48 m² +44% | 2023 |
| 53, Sanderson Road685 m away | 84 m² | 130 m² | +46 m² +55% | 2025 |
| 36, Sunningdale Avenue957 m away | 75 m² | 118 m² | +43 m² +57% | 2016 |
| 13, Jasmine Close212 m away | 89 m² | 121 m² | +32 m² +36% | 2026 |
| 244, Waterford Drive298 m away | 49 m² | 78 m² | +29 m² +59% | 2024 |
| 193, Oregon Way620 m away | 64 m² | 92 m² | +28 m² +44% | 2022 |
| 46a, Parkside Road853 m away | 46 m² | 74 m² | +28 m² +61% | 2019 |
| 73, Sanderson Road685 m away | 95 m² | 122 m² | +27 m² +28% | 2025 |
| 18, Lime Grove374 m away | 73 m² | 98 m² | +25 m² +34% | 2026 |
| 9, Sitwell Street875 m away | 138 m² | 163 m² | +25 m² +18% | 2026 |
| 190, Waterford Drive430 m away | 42 m² | 67 m² | +25 m² +60% | 2023 |
| 8, Belfast Walk573 m away | 44 m² | 69 m² | +25 m² +57% | 2022 |
| 15, Springfield Road416 m away | 70 m² | 95 m² | +25 m² +36% | 2013 |
| 28, Galway Avenue401 m away | 82 m² | 104 m² | +22 m² +27% | 2014 |
| 27, Bridgeside Way796 m away | 92 m² | 113 m² | +21 m² +23% | 2015 |
| 581, Nottingham Road848 m away | 80 m² | 100 m² | +20 m² +25% | 2023 |
| 131, Waterford Drive430 m away | 52 m² | 71 m² | +19 m² +37% | 2021 |
| 29, Vancouver Avenue903 m away | 84 m² | 101 m² | +17 m² +20% | 2026 |
| 24, St Johns Avenue519 m away | 93 m² | 110 m² | +17 m² +18% | 2021 |
| 6, Elm Grove541 m away | 91 m² | 108 m² | +17 m² +19% | 2019 |
| 64, Parkside Road983 m away | 82 m² | 98 m² | +16 m² +20% | 2025 |
| 24, Merchant Avenue505 m away | 103 m² | 119 m² | +16 m² +16% | 2024 |
| 295, Oregon Way358 m away | 63 m² | 78 m² | +15 m² +24% | 2026 |
| 266, Waterford Drive298 m away | 64 m² | 79 m² | +15 m² +23% | 2021 |
| 108, Oregon Way798 m away | 80 m² | 95 m² | +15 m² +19% | 2019 |
| 15, Sunny Grove933 m away | 83 m² | 98 m² | +15 m² +18% | 2019 |
| 609, Nottingham Road618 m away | 84 m² | 99 m² | +15 m² +18% | 2012 |
| 12, Lodge Lane834 m away | 67 m² | 82 m² | +15 m² +22% | 2010 |
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.