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 CF35 6FP
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 |
|---|---|---|---|---|
| Laburnum Cottage, Heol Spencer675 m away | 91 m² | 207 m² | +116 m² +127% | 2022 |
| Delfryn, Heol Spencer372 m away | 97 m² | 207 m² | +110 m² +113% | 2023 |
| 34, Pwll Evan Ddu431 m away | 124 m² | 221 m² | +97 m² +78% | 2025 |
| 14, Joslin Road804 m away | 88 m² | 176 m² | +88 m² +100% | 2020 |
| Llwyncelyn, Pantypwllau856 m away | 88 m² | 171 m² | +83 m² +94% | 2018 |
| 93, Clos Yr Eryr703 m away | 74 m² | 150 m² | +76 m² +103% | 2015 |
| 92, Clos Yr Eryr703 m away | 74 m² | 150 m² | +76 m² +103% | 2015 |
| 88, Clos Yr Eryr703 m away | 88 m² | 150 m² | +62 m² +70% | 2015 |
| Stray Leaves, Heol Spencer372 m away | 257 m² | 311 m² | +54 m² +21% | 2020 |
| 17, Cae Rhedyn388 m away | 118 m² | 168 m² | +50 m² +42% | 2026 |
| 6, Cae Derwen900 m away | 116 m² | 166 m² | +50 m² +43% | 2015 |
| 94, Clos Yr Eryr703 m away | 103 m² | 150 m² | +47 m² +46% | 2015 |
| 2, Sea View, Heol Spencer675 m away | 99 m² | 132 m² | +33 m² +33% | 2024 |
| 90, Clos Yr Eryr703 m away | 82 m² | 114 m² | +32 m² +39% | 2015 |
| Woodview817 m away | 92 m² | 122 m² | +30 m² +33% | 2025 |
| Penlan House, Heol Spencer372 m away | 119 m² | 148 m² | +29 m² +24% | 2015 |
| 146, Ffordd Y Parc922 m away | 122 m² | 149 m² | +27 m² +22% | 2016 |
| 3, Maes Yr Eithin550 m away | 134 m² | 159 m² | +25 m² +19% | 2022 |
| 95, Clos Yr Eryr703 m away | 101 m² | 126 m² | +25 m² +25% | 2015 |
| 8, Lon Yr Helyg242 m away | 93 m² | 117 m² | +24 m² +26% | 2023 |
| 3, Maes Meillion166 m away | 89 m² | 111 m² | +22 m² +25% | 2025 |
| 153, Ffordd Y Draen227 m away | 83 m² | 104 m² | +21 m² +25% | 2025 |
| 16, Bryn Blodau'R Haul278 m away | 117 m² | 138 m² | +21 m² +18% | 2025 |
| 70, Heol Castell Coety894 m away | 70 m² | 89 m² | +19 m² +27% | 2017 |
| 26, Pwll Evan Ddu431 m away | 109 m² | 127 m² | +18 m² +17% | 2025 |
| 20, Trem Gwlad Yr Haf517 m away | 58 m² | 75 m² | +17 m² +29% | 2026 |
| 23, Heol Castell Coety894 m away | 72 m² | 89 m² | +17 m² +24% | 2026 |
| 1, Ffordd Yr Eiddew60 m away | 102 m² | 119 m² | +17 m² +17% | 2024 |
| 3, Lon Yr Ardd262 m away | 65 m² | 81 m² | +16 m² +25% | 2024 |
| 4, Llys Glas Y Gors184 m away | 62 m² | 77 m² | +15 m² +24% | 2022 |
| 3, Cae Derwen900 m away | 98 m² | 113 m² | +15 m² +15% | 2021 |
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.