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 5DA
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 Road333 m away | 106 m² | 228 m² | +122 m² +115% | 2015 |
| Graig Llwyd431 m away | 337 m² | 425 m² | +88 m² +26% | 2019 |
| 12, Poplar Road541 m away | 74 m² | 141 m² | +67 m² +91% | 2023 |
| 1, Heol Y Bryn360 m away | 130 m² | 189 m² | +59 m² +45% | 2014 |
| 94, Alexon Way770 m away | 77 m² | 132 m² | +55 m² +71% | 2025 |
| 14, Hawthorn Road532 m away | 73 m² | 128 m² | +55 m² +75% | 2023 |
| Cae Rhedyn431 m away | 103 m² | 147 m² | +44 m² +43% | 2025 |
| 1, Dyffryn Avenue626 m away | 94 m² | 131 m² | +37 m² +39% | 2011 |
| 4, Tennyson Close712 m away | 94 m² | 125 m² | +31 m² +33% | 2021 |
| 15, Francis Street703 m away | 58 m² | 84 m² | +26 m² +45% | 2016 |
| 24, Dyffryn Crescent775 m away | 91 m² | 116 m² | +25 m² +27% | 2026 |
| 29, Dyffryn Crescent665 m away | 100 m² | 125 m² | +25 m² +25% | 2014 |
| 64, Ynyslyn Road650 m away | 81 m² | 105 m² | +24 m² +30% | 2024 |
| 95, Morien Crescent966 m away | 47 m² | 71 m² | +24 m² +51% | 2024 |
| 16, Hawthorn Crescent453 m away | 72 m² | 96 m² | +24 m² +33% | 2015 |
| 24, De Barri Street847 m away | 84 m² | 106 m² | +22 m² +26% | 2025 |
| 12, Dyffryn Avenue626 m away | 82 m² | 103 m² | +21 m² +26% | 2026 |
| 4, Nant Y Dall Avenue822 m away | 92 m² | 112 m² | +20 m² +22% | 2015 |
| 44, Oak Street370 m away | 81 m² | 101 m² | +20 m² +25% | 2014 |
| 4, Poplar Road541 m away | 91 m² | 110 m² | +19 m² +21% | 2019 |
| 29, Oak Street370 m away | 59 m² | 78 m² | +19 m² +32% | 2013 |
| 79, Tennyson Close672 m away | 84 m² | 103 m² | +19 m² +23% | 2012 |
| 14, Alexon Way770 m away | 109 m² | 126 m² | +17 m² +16% | 2026 |
| 73, Dynea Road118 m away | 59 m² | 76 m² | +17 m² +29% | 2024 |
| 110, Heol Gruffydd795 m away | 77 m² | 94 m² | +17 m² +22% | 2021 |
| 8, Fairfield Close577 m away | 94 m² | 111 m² | +17 m² +18% | 2014 |
| 16, Owen Street768 m away | 83 m² | 99 m² | +16 m² +19% | 2026 |
| 13, Glyn Dwr Avenue974 m away | 82 m² | 98 m² | +16 m² +20% | 2025 |
| 3, Lime Street541 m away | 69 m² | 85 m² | +16 m² +23% | 2024 |
| 58, Hawthorn Crescent560 m away | 91 m² | 107 m² | +16 m² +18% | 2022 |
| 18, Laurel Avenue557 m away | 87 m² | 102 m² | +15 m² +17% | 2023 |
| 22, Ynys Terrace864 m away | 88 m² | 103 m² | +15 m² +17% | 2015 |
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.