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 DN9 3EL
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 |
|---|---|---|---|---|
| 2, Maple Avenue552 m away | 135 m² | 224 m² | +89 m² +66% | 2022 |
| 86, Foxglove Drive298 m away | 61 m² | 119 m² | +58 m² +95% | 2023 |
| 6, Harrier Court79 m away | 101 m² | 159 m² | +58 m² +57% | 2013 |
| 14, Comet Court187 m away | 53 m² | 109 m² | +56 m² +106% | 2016 |
| 12, Comet Court187 m away | 53 m² | 108 m² | +55 m² +104% | 2010 |
| 14b, Birch Avenue693 m away | 115 m² | 164 m² | +49 m² +43% | 2025 |
| 4, Gate House Lane136 m away | 50 m² | 93 m² | +43 m² +86% | 2012 |
| 9, Sherwood Close828 m away | 110 m² | 150 m² | +40 m² +36% | 2018 |
| 10, Holly Road519 m away | 90 m² | 128 m² | +38 m² +42% | 2020 |
| 1, Gate House Lane136 m away | 103 m² | 139 m² | +36 m² +35% | 2026 |
| 88, Foxglove Drive298 m away | 86 m² | 119 m² | +33 m² +38% | 2023 |
| 100, Foxglove Drive298 m away | 86 m² | 119 m² | +33 m² +38% | 2023 |
| 19, Spitfire Way156 m away | 128 m² | 157 m² | +29 m² +23% | 2011 |
| 1, Heyford Court, Hayfield Lane855 m away | 92 m² | 120 m² | +28 m² +30% | 2016 |
| 41, Vulcan Mews0 m away | 57 m² | 83 m² | +26 m² +46% | 2021 |
| 19, Holly Road519 m away | 53 m² | 79 m² | +26 m² +49% | 2015 |
| 59, Sycamore Drive590 m away | 84 m² | 108 m² | +24 m² +29% | 2016 |
| 21, Brooke Court699 m away | 69 m² | 92 m² | +23 m² +33% | 2018 |
| 19, Brooke Court699 m away | 69 m² | 92 m² | +23 m² +33% | 2018 |
| 8, Lilac Grove683 m away | 120 m² | 141 m² | +21 m² +18% | 2021 |
| 4, Holly Road519 m away | 74 m² | 95 m² | +21 m² +28% | 2011 |
| 2, Heyford Court, Hayfield Lane855 m away | 70 m² | 87 m² | +17 m² +24% | 2026 |
| 18, Comet Court187 m away | 98 m² | 115 m² | +17 m² +17% | 2018 |
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.