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 SA4 8JP
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 |
|---|---|---|---|---|
| 37, Birch Rock Road133 m away | 111 m² | 272 m² | +161 m² +145% | 2024 |
| Old Bolgoed, Bolgoed Road0 m away | 103 m² | 188 m² | +85 m² +83% | 2012 |
| 92, Goppa Road558 m away | 71 m² | 143 m² | +72 m² +101% | 2014 |
| Castle Graig, 199, Bryntirion Road958 m away | 132 m² | 195 m² | +63 m² +48% | 2015 |
| Lletty Gariad989 m away | 168 m² | 221 m² | +53 m² +32% | 2021 |
| 39, Goppa Road257 m away | 150 m² | 199 m² | +49 m² +33% | 2020 |
| 16, Golwg Y Twr417 m away | 130 m² | 178 m² | +48 m² +37% | 2009 |
| 11, James Street556 m away | 74 m² | 120 m² | +46 m² +62% | 2026 |
| 19, Pantiago Road606 m away | 53 m² | 99 m² | +46 m² +87% | 2023 |
| 8, Park Terrace485 m away | 98 m² | 141 m² | +43 m² +44% | 2022 |
| 100, Goppa Road558 m away | 90 m² | 131 m² | +41 m² +46% | 2017 |
| 8, Ffordd Yr Odyn430 m away | 88 m² | 127 m² | +39 m² +44% | 2021 |
| 3, Harris Mews854 m away | 123 m² | 157 m² | +34 m² +28% | 2025 |
| Trefin, Upper Mill766 m away | 119 m² | 149 m² | +30 m² +25% | 2024 |
| 3, Glasfryn Road886 m away | 112 m² | 142 m² | +30 m² +27% | 2020 |
| 13, Twyniago548 m away | 29 m² | 58 m² | +29 m² +100% | 2024 |
| Prince Cottage, Highland Terrace205 m away | 180 m² | 207 m² | +27 m² +15% | 2021 |
| 10, Glanyrafon Road832 m away | 111 m² | 138 m² | +27 m² +24% | 2017 |
| 35, Vaughan Crescent166 m away | 94 m² | 120 m² | +26 m² +28% | 2010 |
| 5, Pen Y Pwll457 m away | 84 m² | 109 m² | +25 m² +30% | 2015 |
| 19, Bryniago566 m away | 80 m² | 104 m² | +24 m² +30% | 2021 |
| Llwyngarth, Upper Mill766 m away | 77 m² | 100 m² | +23 m² +30% | 2013 |
| Hafod House, Highland Terrace205 m away | 87 m² | 106 m² | +19 m² +22% | 2013 |
| 26, Ffordd Y Glowr315 m away | 94 m² | 113 m² | +19 m² +20% | 2012 |
| 97, Bolgoed Road0 m away | 93 m² | 111 m² | +18 m² +19% | 2015 |
| 141, Bolgoed Road493 m away | 104 m² | 121 m² | +17 m² +16% | 2023 |
| 26, Oakfield Street803 m away | 77 m² | 94 m² | +17 m² +22% | 2021 |
| 4, Ffordd Y Glowr315 m away | 102 m² | 119 m² | +17 m² +17% | 2013 |
| 15, Golwg Yr Eglwys396 m away | 78 m² | 94 m² | +16 m² +21% | 2025 |
| 26, Glanyrafon Road832 m away | 85 m² | 101 m² | +16 m² +19% | 2022 |
| 25, Twyniago548 m away | 58 m² | 74 m² | +16 m² +28% | 2015 |
| 16, Ffordd Y Glowr315 m away | 78 m² | 93 m² | +15 m² +19% | 2025 |
| 13, Alltiago Road667 m away | 74 m² | 89 m² | +15 m² +20% | 2020 |
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.