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 CF47 8TH
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, The Grove506 m away | 176 m² | 255 m² | +79 m² +45% | 2015 |
| 35, Trevethick Street920 m away | 73 m² | 146 m² | +73 m² +100% | 2022 |
| 13, Alexandra Road634 m away | 196 m² | 260 m² | +64 m² +33% | 2015 |
| Alpine Lodge, Queens Road982 m away | 150 m² | 210 m² | +60 m² +40% | 2022 |
| Riverside House, Quarry Row322 m away | 217 m² | 274 m² | +57 m² +26% | 2019 |
| 31, Penderyn Close775 m away | 56 m² | 107 m² | +51 m² +91% | 2021 |
| Bramblewood, Gwaelodygarth Close564 m away | 106 m² | 156 m² | +50 m² +47% | 2024 |
| 116, High Street817 m away | 35 m² | 81 m² | +46 m² +131% | 2019 |
| 13, The Walk427 m away | 197 m² | 230 m² | +33 m² +17% | 2021 |
| 9, Cromwell Street295 m away | 73 m² | 104 m² | +31 m² +42% | 2017 |
| 61, Lower Thomas Street967 m away | 148 m² | 179 m² | +31 m² +21% | 2009 |
| 42, Gwaelodygarth613 m away | 66 m² | 96 m² | +30 m² +45% | 2020 |
| 17, Llewellyn Street211 m away | 91 m² | 120 m² | +29 m² +32% | 2016 |
| 100, Trevethick Street906 m away | 68 m² | 97 m² | +29 m² +43% | 2010 |
| 16, Llewellyn Street211 m away | 90 m² | 118 m² | +28 m² +31% | 2024 |
| 7, Dane Street254 m away | 49 m² | 77 m² | +28 m² +57% | 2024 |
| 39, Quarry Row322 m away | 86 m² | 114 m² | +28 m² +33% | 2021 |
| 2, Hanover Street132 m away | 97 m² | 123 m² | +26 m² +27% | 2013 |
| 9, Grawen Terrace0 m away | 61 m² | 86 m² | +25 m² +41% | 2022 |
| 12, Norman Terrace300 m away | 105 m² | 130 m² | +25 m² +24% | 2019 |
| 44, The Walk418 m away | 131 m² | 155 m² | +24 m² +18% | 2026 |
| 102, Trevethick Street906 m away | 78 m² | 102 m² | +24 m² +31% | 2024 |
| 20, Newcastle Street798 m away | 41 m² | 65 m² | +24 m² +59% | 2021 |
| 3, Newfoundland Terrace604 m away | 101 m² | 125 m² | +24 m² +24% | 2018 |
| 4, Windsor Place519 m away | 90 m² | 114 m² | +24 m² +27% | 2011 |
| 4, Dane Terrace310 m away | 121 m² | 144 m² | +23 m² +19% | 2023 |
| 56, Tramroad Terrace828 m away | 59 m² | 82 m² | +23 m² +39% | 2019 |
| 80, The Grawen48 m away | 37 m² | 59 m² | +22 m² +59% | 2020 |
| Castle House, Glebeland Street806 m away | 50 m² | 70 m² | +20 m² +40% | 2026 |
| 2, Garth Villas757 m away | 34 m² | 54 m² | +20 m² +59% | 2014 |
| 15, The Walk427 m away | 108 m² | 127 m² | +19 m² +18% | 2024 |
| 54, Trevethick Street906 m away | 51 m² | 70 m² | +19 m² +37% | 2024 |
| 2, Vulcan Buildings390 m away | 50 m² | 69 m² | +19 m² +38% | 2016 |
| 22, Heritage Court680 m away | 77 m² | 94 m² | +17 m² +22% | 2014 |
| 24, Stuart Street186 m away | 80 m² | 96 m² | +16 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.