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 SA1 7DG
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 |
|---|---|---|---|---|
| 189, Cefn Road958 m away | 89 m² | 157 m² | +68 m² +76% | 2025 |
| 48, Phoebe Road939 m away | 45 m² | 96 m² | +51 m² +113% | 2019 |
| 9, Ffordd Donaldson898 m away | 45 m² | 94 m² | +49 m² +109% | 2019 |
| 29, Orion Apartments, Phoebe Road996 m away | 80 m² | 124 m² | +44 m² +55% | 2021 |
| 30, Pentrechwyth Road699 m away | 94 m² | 134 m² | +40 m² +43% | 2015 |
| 68, Phoebe Road939 m away | 45 m² | 84 m² | +39 m² +87% | 2019 |
| 184, Bonymaen Road173 m away | 113 m² | 145 m² | +32 m² +28% | 2013 |
| 6, Phoebe Road939 m away | 38 m² | 68 m² | +30 m² +79% | 2026 |
| 2, Phoebe Road939 m away | 38 m² | 67 m² | +29 m² +76% | 2022 |
| 46, Llanerch Road419 m away | 96 m² | 124 m² | +28 m² +29% | 2024 |
| 72, Caerphilly Avenue517 m away | 72 m² | 100 m² | +28 m² +39% | 2014 |
| 57, Pen Y Garn172 m away | 79 m² | 100 m² | +21 m² +27% | 2022 |
| 2, Taplow Terrace759 m away | 80 m² | 100 m² | +20 m² +25% | 2016 |
| 18, Taplow Terrace759 m away | 69 m² | 88 m² | +19 m² +28% | 2025 |
| 13, Mansel Road316 m away | 85 m² | 104 m² | +19 m² +22% | 2024 |
| 7, Mansel Road316 m away | 74 m² | 93 m² | +19 m² +26% | 2014 |
| 36, Neptune Apartments, Phoebe Road985 m away | 64 m² | 81 m² | +17 m² +27% | 2024 |
| 38, Orion Apartments, Phoebe Road996 m away | 53 m² | 70 m² | +17 m² +32% | 2022 |
| 19, Orion Apartments, Phoebe Road996 m away | 53 m² | 70 m² | +17 m² +32% | 2021 |
| 21, Myrddin Road159 m away | 91 m² | 108 m² | +17 m² +19% | 2019 |
| 28, Belleisle Apartments, Phoebe Road978 m away | 80 m² | 96 m² | +16 m² +20% | 2020 |
| 39, Pen Y Garn194 m away | 62 m² | 78 m² | +16 m² +26% | 2014 |
| 238, Mansel Road984 m away | 78 m² | 94 m² | +16 m² +21% | 2014 |
| 12, Taplow Terrace759 m away | 71 m² | 87 m² | +16 m² +23% | 2013 |
| 26, Talfan Road126 m away | 70 m² | 85 m² | +15 m² +21% | 2024 |
| 10, Candleston Place563 m away | 86 m² | 101 m² | +15 m² +17% | 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.