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 BB5 4PB
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 |
|---|---|---|---|---|
| 10, Cardigan Avenue463 m away | 61 m² | 146 m² | +85 m² +139% | 2026 |
| 30, Conway Drive387 m away | 113 m² | 189 m² | +76 m² +67% | 2023 |
| 50, Aspen Fold136 m away | 98 m² | 153 m² | +55 m² +56% | 2014 |
| 78, Stanhill Road588 m away | 90 m² | 137 m² | +47 m² +52% | 2016 |
| 5, Spread Eagle Street119 m away | 84 m² | 117 m² | +33 m² +39% | 2018 |
| 188, Blackburn Road598 m away | 58 m² | 90 m² | +32 m² +55% | 2014 |
| 186, Blackburn Road598 m away | 78 m² | 107 m² | +29 m² +37% | 2025 |
| 1, Browning Avenue483 m away | 62 m² | 91 m² | +29 m² +47% | 2014 |
| 15, Dunster Avenue363 m away | 78 m² | 106 m² | +28 m² +36% | 2016 |
| 46, Aspen Fold136 m away | 90 m² | 117 m² | +27 m² +30% | 2021 |
| 481, Blackburn Road203 m away | 99 m² | 126 m² | +27 m² +27% | 2021 |
| 439, Blackburn Road203 m away | 115 m² | 141 m² | +26 m² +23% | 2018 |
| 10, Ripon Road258 m away | 70 m² | 94 m² | +24 m² +34% | 2022 |
| 335, Blackburn Road468 m away | 73 m² | 96 m² | +23 m² +32% | 2025 |
| 22, Central Avenue551 m away | 82 m² | 105 m² | +23 m² +28% | 2024 |
| 327, Blackburn Road468 m away | 104 m² | 126 m² | +22 m² +21% | 2026 |
| 11, Harlech Drive243 m away | 73 m² | 95 m² | +22 m² +30% | 2016 |
| 4, Wham Brook Close0 m away | 112 m² | 133 m² | +21 m² +19% | 2026 |
| 116, Thwaites Road666 m away | 76 m² | 96 m² | +20 m² +26% | 2015 |
| 16, Cranbrook Avenue293 m away | 42 m² | 62 m² | +20 m² +48% | 2014 |
| 77, Thwaites Road393 m away | 112 m² | 131 m² | +19 m² +17% | 2016 |
| 8, Bright Street992 m away | 82 m² | 101 m² | +19 m² +23% | 2013 |
| 26, Aspen Fold136 m away | 95 m² | 113 m² | +18 m² +19% | 2016 |
| 5, Spinning Mill Close479 m away | 87 m² | 104 m² | +17 m² +20% | 2024 |
| Dovea, Blackburn Road468 m away | 108 m² | 125 m² | +17 m² +16% | 2023 |
| 39, Cardigan Avenue463 m away | 60 m² | 77 m² | +17 m² +28% | 2021 |
| 1, Barnard Close315 m away | 83 m² | 100 m² | +17 m² +20% | 2016 |
| 17, Banbury Avenue361 m away | 80 m² | 95 m² | +15 m² +19% | 2025 |
| 57, Hargreaves Road609 m away | 69 m² | 84 m² | +15 m² +22% | 2019 |
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.