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 4ER
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 |
|---|---|---|---|---|
| 92, High Street333 m away | 164 m² | 270 m² | +106 m² +65% | 2018 |
| 7, Heathfield Road616 m away | 136 m² | 219 m² | +83 m² +61% | 2008 |
| 89, Parc Gilbertson794 m away | 41 m² | 101 m² | +60 m² +146% | 2017 |
| 32, Graig Road690 m away | 92 m² | 145 m² | +53 m² +58% | 2016 |
| 18, Bronywawr477 m away | 98 m² | 147 m² | +49 m² +50% | 2020 |
| Mountain View, Alltwen Hill628 m away | 123 m² | 165 m² | +42 m² +34% | 2022 |
| 21, Dyffryn Road677 m away | 78 m² | 120 m² | +42 m² +54% | 2019 |
| 1, Quarr Road230 m away | 83 m² | 124 m² | +41 m² +49% | 2022 |
| 85, Parc Gilbertson794 m away | 41 m² | 82 m² | +41 m² +100% | 2019 |
| 2, Birchfield Road |
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.
| 125 m² |
| 165 m² |
| +40 m² +32% |
| 2018 |
| 81, Parc Gilbertson794 m away | 41 m² | 81 m² | +40 m² +98% | 2011 |
|---|
| 87, Parc Gilbertson794 m away | 41 m² | 80 m² | +39 m² +95% | 2025 |
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| 29, Quarr Road230 m away | 80 m² | 115 m² | +35 m² +44% | 2026 |
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| 40, Lon Hir781 m away | 107 m² | 142 m² | +35 m² +33% | 2020 |
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| 16, Orchard Street0 m away | 145 m² | 180 m² | +35 m² +24% | 2017 |
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| 85, Alltwen Hill927 m away | 85 m² | 118 m² | +33 m² +39% | 2024 |
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| 3, Cefn Llan Road943 m away | 47 m² | 80 m² | +33 m² +70% | 2024 |
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| 6, Ffordd Brynheulog441 m away | 48 m² | 81 m² | +33 m² +69% | 2008 |
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| 54, Grove Road498 m away | 85 m² | 114 m² | +29 m² +34% | 2019 |
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| 27, Derwen Road936 m away | 98 m² | 126 m² | +28 m² +29% | 2025 |
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| 33, Parc Gilbertson794 m away | 52 m² | 80 m² | +28 m² +54% | 2013 |
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| 83, High Street333 m away | 140 m² | 167 m² | +27 m² +19% | 2015 |
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| 69, Swansea Road896 m away | 77 m² | 101 m² | +24 m² +31% | 2023 |
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| 63, Swansea Road896 m away | 72 m² | 96 m² | +24 m² +33% | 2022 |
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| 73, High Street333 m away | 104 m² | 128 m² | +24 m² +23% | 2020 |
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| 99, High Street333 m away | 140 m² | 163 m² | +23 m² +16% | 2025 |
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| 74, Lon Hir781 m away | 99 m² | 122 m² | +23 m² +23% | 2017 |
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| 2, Quarr Road230 m away | 51 m² | 73 m² | +22 m² +43% | 2025 |
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| 24, Swansea Road896 m away | 97 m² | 119 m² | +22 m² +23% | 2023 |
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| 70, Brecon Road815 m away | 97 m² | 119 m² | +22 m² +23% | 2016 |
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| 75, Alltwen Hill927 m away | 87 m² | 109 m² | +22 m² +25% | 2016 |
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| 12, Gwyns Place785 m away | 66 m² | 88 m² | +22 m² +33% | 2013 |
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| 35, Alltwen Hill628 m away | 108 m² | 129 m² | +21 m² +19% | 2024 |
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| 18, Edward Street756 m away | 89 m² | 108 m² | +19 m² +21% | 2014 |
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| 5, Smithfield Road501 m away | 112 m² | 130 m² | +18 m² +16% | 2026 |
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| 65, Gwyn Street943 m away | 91 m² | 109 m² | +18 m² +20% | 2026 |
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| 7, Ffordd Brynheulog441 m away | 83 m² | 101 m² | +18 m² +22% | 2023 |
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| 47, High Street196 m away | 113 m² | 131 m² | +18 m² +16% | 2021 |
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| Dynevor Arms, Dynevor Terrace150 m away | 37 m² | 54 m² | +17 m² +46% | 2025 |
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| 18, High Street94 m away | 23 m² | 40 m² | +17 m² +74% | 2022 |
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| 6, Mill Row510 m away | 65 m² | 82 m² | +17 m² +26% | 2022 |
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| 15, Church Street175 m away | 81 m² | 98 m² | +17 m² +21% | 2016 |
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| 18, Maes Yr Ysgol578 m away | 80 m² | 96 m² | +16 m² +20% | 2026 |
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| 148, Tyn Y Cae949 m away | 70 m² | 85 m² | +15 m² +21% | 2026 |
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| 43, Alltwen Hill628 m away | 62 m² | 77 m² | +15 m² +24% | 2024 |
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| 2, Derwen Road936 m away | 85 m² | 100 m² | +15 m² +18% | 2022 |
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| 5, High Street727 m away | 71 m² | 86 m² | +15 m² +21% | 2021 |
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