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 BS3 2PY
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 |
|---|---|---|---|---|
| 23a, Swiss Road341 m away | 89 m² | 169 m² | +80 m² +90% | 2025 |
| 30, Silbury Road167 m away | 79 m² | 150 m² | +71 m² +90% | 2022 |
| 96, Smyth Road891 m away | 103 m² | 173 m² | +70 m² +68% | 2020 |
| 54, Swiss Road373 m away | 63 m² | 130 m² | +67 m² +106% | 2021 |
| 126, Smyth Road891 m away | 58 m² | 114 m² | +56 m² +97% | 2013 |
| 103, Swiss Drive540 m away | 93 m² | 132 m² | +39 m² +42% | 2026 |
| 4, Risdale Road260 m away | 31 m² | 70 m² | +39 m² +126% | 2012 |
| 36, Risdale Road260 m away | 74 m² | 112 m² | +38 m² +51% | 2013 |
| 15, Swiss Drive367 m away | 75 m² | 108 m² | +33 m² +44% | 2013 |
| 19, Trevenna Road201 m away | 71 m² | 101 m² | +30 m² +42% | 2025 |
| 84, Risdale Road126 m away | 47 m² | 75 m² | +28 m² +60% | 2023 |
| 20, Silbury Road167 m away | 82 m² | 110 m² | +28 m² +34% | 2021 |
| 152a, Swiss Drive451 m away | 72 m² | 99 m² | +27 m² +38% | 2021 |
| 86, South Liberty Lane506 m away | 63 m² | 88 m² | +25 m² +40% | 2025 |
| 16, Bower Road859 m away | 93 m² | 118 m² | +25 m² +27% | 2024 |
| 61, Avebury Road154 m away | 70 m² | 95 m² | +25 m² +36% | 2022 |
| 76, Ashton Drive418 m away | 96 m² | 120 m² | +24 m² +25% | 2024 |
| 5, Ashton Drive635 m away | 38 m² | 60 m² | +22 m² +58% | 2019 |
| 38, Silbury Road167 m away | 83 m² | 104 m² | +21 m² +25% | 2025 |
| 13, Hendre Road849 m away | 96 m² | 117 m² | +21 m² +22% | 2023 |
| 119, Swiss Drive461 m away | 78 m² | 98 m² | +20 m² +26% | 2015 |
| 8, Hendre Road873 m away | 115 m² | 133 m² | +18 m² +16% | 2024 |
| 77, Ashton Drive442 m away | 87 m² | 105 m² | +18 m² +21% | 2018 |
| 91, Smyth Road908 m away | 88 m² | 106 m² | +18 m² +20% | 2014 |
| 34, Swiss Drive438 m away | 83 m² | 99 m² | +16 m² +19% | 2013 |
| 9, Swiss Road341 m away | 75 m² | 90 m² | +15 m² +20% | 2022 |
| 155, Ashton Drive150 m away | 95 m² | 110 m² | +15 m² +16% | 2014 |
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.