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 SA8 4AL
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 |
|---|---|---|---|---|
| 13, Cae Is Maen378 m away | 123 m² | 246 m² | +123 m² +100% | 2020 |
| Tyn-Y-Pant Farm, Tyn Y Pant Road840 m away | 87 m² | 151 m² | +64 m² +74% | 2013 |
| 1, Lloyd Street790 m away | 130 m² | 191 m² | +61 m² +47% | 2021 |
| 50, Derwen Road556 m away | 45 m² | 104 m² | +59 m² +131% | 2011 |
| 164, Swansea Road993 m away | 80 m² | 123 m² | +43 m² +54% | 2026 |
| Mountain View, Alltwen Hill992 m away | 123 m² | 165 m² | +42 m² +34% | 2022 |
| 16, Orchard Street896 m away | 145 m² | 180 m² | +35 m² +24% | 2017 |
| 27, Derwen Road556 m away | 98 m² | 126 m² | +28 m² +29% | 2025 |
| 163, Swansea Road956 m away | 85 m² | 112 m² | +27 m² +32% | 2015 |
| 69, Swansea Road0 m away | 77 m² | 101 m² | +24 m² +31% | 2023 |
| 63, Swansea Road0 m away | 72 m² | 96 m² | +24 m² +33% | 2022 |
| 24, Swansea Road0 m away | 97 m² | 119 m² | +22 m² +23% | 2023 |
| 12, Gwyns Place934 m away | 66 m² | 88 m² | +22 m² +33% | 2013 |
| 35, Alltwen Hill992 m away | 108 m² | 129 m² | +21 m² +19% | 2024 |
| 65, Gwyn Street685 m away | 91 m² | 109 m² | +18 m² +20% | 2026 |
| Dynevor Arms, Dynevor Terrace883 m away | 37 m² | 54 m² | +17 m² +46% | 2025 |
| 18, High Street877 m away | 23 m² | 40 m² | +17 m² +74% | 2022 |
| 6, Mill Row983 m away | 65 m² | 82 m² | +17 m² +26% | 2022 |
| 14, Glynmeirch Road254 m away | 92 m² | 109 m² | +17 m² +18% | 2018 |
| 15, Church Street956 m away | 81 m² | 98 m² | +17 m² +21% | 2016 |
| 48, Graig Road495 m away | 100 m² | 116 m² | +16 m² +16% | 2013 |
| 148, Tyn Y Cae872 m away | 70 m² | 85 m² | +15 m² +21% | 2026 |
| 37, New Road996 m away | 80 m² | 95 m² | +15 m² +19% | 2025 |
| 43, Alltwen Hill992 m away | 62 m² | 77 m² | +15 m² +24% | 2024 |
| 2, Derwen Road556 m away | 85 m² | 100 m² | +15 m² +18% | 2022 |
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.