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 OX14 4EJ
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 |
|---|---|---|---|---|
| Milton Cottage, School Lane173 m away | 160 m² | 257 m² | +97 m² +61% | 2015 |
| 31, Willow Lane289 m away | 120 m² | 180 m² | +60 m² +50% | 2016 |
| 78, High Street0 m away | 151 m² | 205 m² | +54 m² +36% | 2026 |
| 35, Heather Road425 m away | 80 m² | 114 m² | +34 m² +43% | 2014 |
| 10, Sutton Road379 m away | 134 m² | 164 m² | +30 m² +22% | 2023 |
| 29, Heather Road425 m away | 88 m² | 111 m² | +23 m² +26% | 2015 |
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.