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 SO40 2HE
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 Jays, Winsor Road0 m away | 98 m² | 172 m² | +74 m² +76% | 2018 |
| Fairview, Copythorne Crescent913 m away | 148 m² | 207 m² | +59 m² +40% | 2019 |
| The Hollies, Barrow Hill Road690 m away | 142 m² | 197 m² | +55 m² +39% | 2019 |
| Ingleside, Winsor Lane544 m away | 78 m² | 126 m² | +48 m² +62% | 2015 |
| Tanglewood, Winsor Road667 m away | 84 m² | 118 m² | +34 m² +40% | 2026 |
| Clock Cottage, Whitemoor Lane617 m away | 175 m² | 204 m² | +29 m² +17% | 2020 |
| The Oaks, Barrow Hill Road690 m away | 119 m² | 147 m² | +28 m² +24% | 2021 |
| Ravenscroft, Winsor Lane544 m away | 74 m² | 100 m² | +26 m² +35% | 2015 |
| Lancotbury, Winsor Road667 m away | 92 m² | 118 m² | +26 m² +28% | 2013 |
| La Falaise, Winsor Road0 m away | 66 m² | 86 m² | +20 m² +30% | 2025 |
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.