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 CF72 8HY
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 |
|---|---|---|---|---|
| 4, Firbanks Way425 m away | 194 m² | 267 m² | +73 m² +38% | 2026 |
| 9, Heol Johnson470 m away | 83 m² | 136 m² | +53 m² +64% | 2025 |
| 27, Clos Springfield179 m away | 51 m² | 102 m² | +51 m² +100% | 2025 |
| Rosmayna, 55, Lanelay Road0 m away | 126 m² | 176 m² | +50 m² +40% | 2016 |
| 58, Lanelay Road0 m away | 86 m² | 135 m² | +49 m² +57% | 2022 |
| 23, Clos Ynysddu890 m away | 134 m² | 182 m² | +48 m² +36% | 2016 |
| 2, Railway Terrace363 m away | 78 m² | 123 m² | +45 m² +58% | 2017 |
| 37, Dan Y Graig Heights850 m away | 153 m² | 195 m² | +42 m² +27% | 2019 |
| 28, Woodfield Road268 m away | 105 m² | 145 m² | +40 m² +38% | 2024 |
| 22, Heol Miles366 m away | 84 m² | 122 m² | +38 m² +45% | 2015 |
| 13, Danygraig Crescent683 m away | 97 m² | 134 m² | +37 m² +38% | 2025 |
| Trevethin, Cowbridge Road242 m away | 67 m² | 104 m² | +37 m² +55% | 2022 |
| 16, Woodfield Road268 m away | 81 m² | 117 m² | +36 m² +44% | 2015 |
| 57, Lanelay Road0 m away | 91 m² | 126 m² | +35 m² +38% | 2022 |
| 16, Talbot Close900 m away | 64 m² | 94 m² | +30 m² +47% | 2024 |
| 10, Maelog Close999 m away | 126 m² | 153 m² | +27 m² +21% | 2020 |
| 76, Clos Springfield179 m away | 94 m² | 121 m² | +27 m² +29% | 2016 |
| 26, Lanelay Road256 m away | 102 m² | 128 m² | +26 m² +25% | 2026 |
| 13, Lanelay Close121 m away | 91 m² | 117 m² | +26 m² +29% | 2025 |
| 40, Clos Ynysddu890 m away | 79 m² | 104 m² | +25 m² +32% | 2016 |
| 28, Dunraven Crescent133 m away | 115 m² | 139 m² | +24 m² +21% | 2026 |
| Ivy Cottage Lanelay407 m away | 106 m² | 130 m² | +24 m² +23% | 2013 |
| 29, Ynysddu774 m away | 109 m² | 130 m² | +21 m² +19% | 2023 |
| 43, Clos Ynysddu890 m away | 120 m² | 141 m² | +21 m² +18% | 2016 |
| 64, Lanelay Road0 m away | 89 m² | 108 m² | +19 m² +21% | 2012 |
| 3, Heol Miles366 m away | 83 m² | 101 m² | +18 m² +22% | 2026 |
| 2, Oak Close850 m away | 75 m² | 93 m² | +18 m² +24% | 2023 |
| 70, Clos Springfield179 m away | 79 m² | 97 m² | +18 m² +23% | 2022 |
| 28, Maes Y Rhedyn500 m away | 92 m² | 109 m² | +17 m² +18% | 2024 |
| 16, Ash Walk851 m away | 58 m² | 75 m² | +17 m² +29% | 2024 |
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.