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 SA15 5LF
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 |
|---|---|---|---|---|
| 23, Greenfield Terrace747 m away | 92 m² | 164 m² | +72 m² +78% | 2021 |
| 3, Ashgrove188 m away | 324 m² | 376 m² | +52 m² +16% | 2013 |
| 12, Bryn Tirion560 m away | 197 m² | 228 m² | +31 m² +16% | 2023 |
| 10, Mynachlog Terrace855 m away | 75 m² | 102 m² | +27 m² +36% | 2022 |
| 1, Ashgrove188 m away | 39 m² | 59 m² | +20 m² +51% | 2010 |
| 2, Gwendraeth Row626 m away | 69 m² | 84 m² | +15 m² +22% | 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.