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 SA10 8LD
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 |
|---|---|---|---|---|
| 14, Park Street729 m away | 65 m² | 136 m² | +71 m² +109% | 2019 |
| 4, Woodside595 m away | 77 m² | 125 m² | +48 m² +62% | 2023 |
| 50, The Pines616 m away | 143 m² | 188 m² | +45 m² +31% | 2020 |
| 42, Ffynnon Dawel298 m away | 112 m² | 155 m² | +43 m² +38% | 2019 |
| 56, Dan Y Bryn959 m away | 79 m² | 121 m² | +42 m² +53% | 2014 |
| 22, Parc Penscynnor411 m away | 147 m² | 181 m² | +34 m² +23% | 2024 |
| 56, Underwood Road358 m away | 77 m² | 107 m² | +30 m² +39% | 2016 |
| 18, St Annes Terrace591 m away | 87 m² | 113 m² | +26 m² +30% | 2026 |
| 67, Cefn Yr Allt925 m away | 94 m² | 120 m² | +26 m² +28% | 2023 |
| 6, Whittington Street764 m away | 74 m² | 98 m² | +24 m² +32% | 2022 |
| 16, Pen Y Bryn962 m away | 80 m² | 104 m² | +24 m² +30% | 2015 |
| 17, Cefn Yr Allt925 m away | 77 m² | 101 m² | +24 m² +31% | 2013 |
| 32, Fforest Hill715 m away | 53 m² | 77 m² | +24 m² +45% | 2011 |
| 53, Neath Road718 m away | 107 m² | 128 m² | +21 m² +20% | 2025 |
| 2, School Road537 m away | 72 m² | 92 m² | +20 m² +28% | 2024 |
| 30, Hunters Ridge858 m away | 70 m² | 90 m² | +20 m² +29% | 2012 |
| 58, Hunters Ridge858 m away | 103 m² | 123 m² | +20 m² +19% | 2011 |
| 20, Dan Y Bryn959 m away | 91 m² | 109 m² | +18 m² +20% | 2026 |
| 9, Maes Gwyn0 m away | 84 m² | 102 m² | +18 m² +21% | 2023 |
| 79, Henfaes Road476 m away | 88 m² | 106 m² | +18 m² +20% | 2015 |
| 38, Hunters Ridge858 m away | 97 m² | 114 m² | +17 m² +18% | 2023 |
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.