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 0UG
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 |
|---|---|---|---|---|
| 39, Heol Y Parc718 m away | 104 m² | 209 m² | +105 m² +101% | 2014 |
| 51, Heol Y Parc718 m away | 160 m² | 244 m² | +84 m² +53% | 2024 |
| 81, Ffordd Cambria547 m away | 92 m² | 170 m² | +78 m² +85% | 2024 |
| 47, Heol Y Plas922 m away | 126 m² | 189 m² | +63 m² +50% | 2021 |
| 133, Iscoed Road286 m away | 90 m² | 149 m² | +59 m² +66% | 2013 |
| 7, Bryn Road585 m away | 104 m² | 161 m² | +57 m² +55% | 2013 |
| 22, Heol Llwyn Bedw875 m away | 82 m² | 137 m² | +55 m² +67% | 2013 |
| 13, Harleyford Road478 m away | 108 m² | 162 m² | +54 m² +50% | 2021 |
| 9b, Tyn Y Bonau Road761 m away | 67 m² | 113 m² | +46 m² +69% | 2020 |
| 11, Bryn Road585 m away | 111 m² | 152 m² | +41 m² +37% | 2021 |
| 9, Plas Y Fforest935 m away | 190 m² | 229 m² | +39 m² +21% | 2025 |
| 112, Iscoed Road286 m away | 83 m² | 121 m² | +38 m² +46% | 2018 |
| 42, Llanedi Road840 m away | 96 m² | 132 m² | +36 m² +38% | 2026 |
| 2, Heol Y Felin686 m away | 168 m² | 203 m² | +35 m² +21% | 2021 |
| 144, Squirrel Walk125 m away | 73 m² | 105 m² | +32 m² +44% | 2024 |
| 101, St Teilo Street808 m away | 80 m² | 112 m² | +32 m² +40% | 2014 |
| 3, Ffos Yr Efail Terrace905 m away | 81 m² | 113 m² | +32 m² +40% | 2014 |
| 16, Sawel Terrace498 m away | 96 m² | 126 m² | +30 m² +31% | 2018 |
| 16, Tyn Y Bonau Road793 m away | 118 m² | 146 m² | +28 m² +24% | 2016 |
| 101, Ffordd Cambria547 m away | 111 m² | 135 m² | +24 m² +22% | 2025 |
| 46, Bronallt Road186 m away | 89 m² | 113 m² | +24 m² +27% | 2016 |
| 14, Maesderi794 m away | 68 m² | 91 m² | +23 m² +34% | 2024 |
| 104, Iscoed Road286 m away | 107 m² | 130 m² | +23 m² +21% | 2015 |
| 5, High Street649 m away | 109 m² | 130 m² | +21 m² +19% | 2022 |
| 14, Bryn Road585 m away | 97 m² | 118 m² | +21 m² +22% | 2019 |
| 186, Squirrel Walk0 m away | 91 m² | 112 m² | +21 m² +23% | 2014 |
| 30, Clayton Road195 m away | 115 m² | 135 m² | +20 m² +17% | 2023 |
| 16, Tal Y Coed977 m away | 60 m² | 77 m² | +17 m² +28% | 2015 |
| 36, Iscoed Road538 m away | 79 m² | 95 m² | +16 m² +20% | 2021 |
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.