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 2PB
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 |
|---|---|---|---|---|
| Swiss Cottage, Winsor Road720 m away | 114 m² | 186 m² | +72 m² +63% | 2025 |
| The Haven, Romsey Road692 m away | 80 m² | 148 m² | +68 m² +85% | 2019 |
| Meadow View, The Brickyard948 m away | 158 m² | 221 m² | +63 m² +40% | 2015 |
| Fairview, Copythorne Crescent818 m away | 148 m² | 207 m² | +59 m² +40% | 2019 |
| Lynwood, Winsor Road720 m away | 86 m² | 123 m² | +37 m² +43% | 2024 |
| Tanglewood, Winsor Road800 m away | 84 m² | 118 m² | +34 m² +40% | 2026 |
| Robins, Pollards Moor Road551 m away | 85 m² | 116 m² | +31 m² +36% | 2022 |
| Oak Cottage, Winsor Road853 m away | 77 m² | 107 m² | +30 m² +39% | 2020 |
| Lancotbury, Winsor Road800 m away | 92 m² | 118 m² | +26 m² +28% | 2013 |
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.