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 CF37 5NY
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 |
|---|---|---|---|---|
| Trem-Y-Garth, Poplar Road745 m away | 106 m² | 228 m² | +122 m² +115% | 2015 |
| Graig Llwyd906 m away | 337 m² | 425 m² | +88 m² +26% | 2019 |
| 137, Morien Crescent585 m away | 90 m² | 160 m² | +70 m² +78% | 2023 |
| 12, Poplar Road501 m away | 74 m² | 141 m² | +67 m² +91% | 2023 |
| 94, Alexon Way877 m away | 77 m² | 132 m² | +55 m² +71% | 2025 |
| Cae Rhedyn906 m away | 103 m² | 147 m² | +44 m² +43% | 2025 |
| 6, Collins Terrace807 m away | 90 m² | 134 m² | +44 m² +49% | 2024 |
| 51, Queen Street894 m away | 96 m² | 139 m² | +43 m² +45% | 2016 |
| Edge Hill, Tavern Y Coed997 m away | 214 m² | 251 m² | +37 m² +17% | 2021 |
| 1, Dyffryn Avenue |
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.
| 94 m² |
| 131 m² |
| +37 m² +39% |
| 2011 |
| 1, Meadow Street440 m away | 88 m² | 123 m² | +35 m² +40% | 2024 |
|---|
| 53, Llantwit Road540 m away | 114 m² | 148 m² | +34 m² +30% | 2019 |
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| 76, Morien Crescent481 m away | 78 m² | 112 m² | +34 m² +44% | 2016 |
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| 4, Tennyson Close431 m away | 94 m² | 125 m² | +31 m² +33% | 2021 |
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| 5, Bertha Street623 m away | 101 m² | 128 m² | +27 m² +27% | 2022 |
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| 15, Francis Street542 m away | 58 m² | 84 m² | +26 m² +45% | 2016 |
|---|
| 24, Dyffryn Crescent296 m away | 91 m² | 116 m² | +25 m² +27% | 2026 |
|---|
| 39, Llantwit Road540 m away | 102 m² | 127 m² | +25 m² +25% | 2021 |
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| 29, Dyffryn Crescent249 m away | 100 m² | 125 m² | +25 m² +25% | 2014 |
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| 95, Morien Crescent415 m away | 47 m² | 71 m² | +24 m² +51% | 2024 |
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| 16, Hawthorn Crescent999 m away | 72 m² | 96 m² | +24 m² +33% | 2015 |
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| 79, King Street933 m away | 79 m² | 102 m² | +23 m² +29% | 2025 |
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| 90, Queen Street894 m away | 63 m² | 86 m² | +23 m² +37% | 2022 |
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| 24, De Barri Street547 m away | 84 m² | 106 m² | +22 m² +26% | 2025 |
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| 33, Brook Street815 m away | 67 m² | 89 m² | +22 m² +33% | 2024 |
|---|
| 12, Dyffryn Avenue315 m away | 82 m² | 103 m² | +21 m² +26% | 2026 |
|---|
| Graig-Y-Fforest House939 m away | 107 m² | 128 m² | +21 m² +20% | 2022 |
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| 4, Nant Y Dall Avenue601 m away | 92 m² | 112 m² | +20 m² +22% | 2015 |
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| 44, Oak Street554 m away | 81 m² | 101 m² | +20 m² +25% | 2014 |
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| 83, King Street933 m away | 99 m² | 118 m² | +19 m² +19% | 2025 |
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| 4, Poplar Road501 m away | 91 m² | 110 m² | +19 m² +21% | 2019 |
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| 29, Oak Street554 m away | 59 m² | 78 m² | +19 m² +32% | 2013 |
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| 79, Tennyson Close395 m away | 84 m² | 103 m² | +19 m² +23% | 2012 |
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| 36, Meadow Street440 m away | 61 m² | 79 m² | +18 m² +30% | 2023 |
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| 2, Forest Road729 m away | 67 m² | 85 m² | +18 m² +27% | 2023 |
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| 14, Alexon Way877 m away | 109 m² | 126 m² | +17 m² +16% | 2026 |
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| 73, Dynea Road983 m away | 59 m² | 76 m² | +17 m² +29% | 2024 |
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| 110, Heol Gruffydd71 m away | 77 m² | 94 m² | +17 m² +22% | 2021 |
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| 7, Brook Street815 m away | 78 m² | 95 m² | +17 m² +22% | 2020 |
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| 8, Fairfield Close889 m away | 94 m² | 111 m² | +17 m² +18% | 2014 |
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| 16, Owen Street459 m away | 83 m² | 99 m² | +16 m² +19% | 2026 |
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| 13, Glyn Dwr Avenue189 m away | 82 m² | 98 m² | +16 m² +20% | 2025 |
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| 3, Lime Street324 m away | 69 m² | 85 m² | +16 m² +23% | 2024 |
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| 84, Cardiff Road549 m away | 84 m² | 100 m² | +16 m² +19% | 2024 |
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| 22, Ynys Terrace0 m away | 88 m² | 103 m² | +15 m² +17% | 2015 |
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