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 SN10 1QA
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 |
|---|---|---|---|---|
| The Firs, The Locks258 m away | 158 m² | 348 m² | +190 m² +120% | 2025 |
| 125, Avon Road127 m away | 98 m² | 150 m² | +52 m² +53% | 2026 |
| 2, Trafalgar Place791 m away | 184 m² | 236 m² | +52 m² +28% | 2026 |
| Oxhouse Farm, The Locks258 m away | 107 m² | 157 m² | +50 m² +47% | 2009 |
| 22, High Lawn489 m away | 105 m² | 141 m² | +36 m² +34% | 2025 |
| 79, Hillworth Road985 m away | 87 m² | 121 m² | +34 m² +39% | 2016 |
| Warren Wood, Bath Road249 m away | 193 m² | 222 m² | +29 m² +15% | 2023 |
| 31, Mayenne Place460 m away | 84 m² | 109 m² | +25 m² +30% | 2026 |
| Etloe, Salisbury Street0 m away | 79 m² | 104 m² | +25 m² +32% | 2016 |
| 4, Mayenne Place460 m away | 84 m² | 103 m² | +19 m² +23% | 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.