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 SA15 4EP
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 |
|---|---|---|---|---|
| 118, New Road795 m away | 315 m² | 430 m² | +115 m² +37% | 2017 |
| 43, Penyfai Lane161 m away | 124 m² | 191 m² | +67 m² +54% | 2015 |
| 26, Penyfai Lane161 m away | 179 m² | 243 m² | +64 m² +36% | 2013 |
| Ty Ddraig853 m away | 132 m² | 189 m² | +57 m² +43% | 2026 |
| 1, Brickyard Cottages886 m away | 75 m² | 128 m² | +53 m² +71% | 2018 |
| 16, Hillside561 m away | 129 m² | 178 m² | +49 m² +38% | 2017 |
| 16, Spowart Avenue925 m away | 149 m² | 193 m² | +44 m² +30% | 2024 |
| 12, Stryd Bennett646 m away | 71 m² | 115 m² | +44 m² +62% | 2014 |
| 40, Sandy Road844 m away | 109 m² | 151 m² | +42 m² +39% | 2016 |
| 18, Heol James Gravell675 m away | 54 m² | 91 m² | +37 m² +69% | 2018 |
| 52, Stryd Bennett646 m away | 54 m² | 91 m² | +37 m² +69% | 2017 |
| 21, Heol James Gravell675 m away | 54 m² | 91 m² | +37 m² +69% | 2017 |
| 108, New Road795 m away | 149 m² | 184 m² | +35 m² +23% | 2024 |
| 17, Stradey Road648 m away | 73 m² | 105 m² | +32 m² +44% | 2025 |
| 73, New Road744 m away | 151 m² | 181 m² | +30 m² +20% | 2023 |
| 20, Spowart Avenue925 m away | 167 m² | 197 m² | +30 m² +18% | 2023 |
| 63, Denham Avenue343 m away | 180 m² | 209 m² | +29 m² +16% | 2024 |
| 13, Heol James Gravell675 m away | 70 m² | 99 m² | +29 m² +41% | 2018 |
| 14, Heol James Gravell675 m away | 70 m² | 99 m² | +29 m² +41% | 2018 |
| 15, Heol James Gravell675 m away | 70 m² | 99 m² | +29 m² +41% | 2018 |
| 22, Heol James Gravell675 m away | 70 m² | 99 m² | +29 m² +41% | 2017 |
| 39a, Stradey Road648 m away | 29 m² | 57 m² | +28 m² +97% | 2024 |
| 48, Derwent Street886 m away | 60 m² | 86 m² | +26 m² +43% | 2011 |
| 107, Sandy Road773 m away | 122 m² | 147 m² | +25 m² +20% | 2014 |
| 44, Spowart Avenue925 m away | 128 m² | 152 m² | +24 m² +19% | 2014 |
| 35, Sandpiper Road946 m away | 69 m² | 91 m² | +22 m² +32% | 2014 |
| 93, Stryd Bennett527 m away | 115 m² | 136 m² | +21 m² +18% | 2025 |
| 17, Heol James Gravell675 m away | 70 m² | 91 m² | +21 m² +30% | 2018 |
| 19, Heol James Gravell675 m away | 70 m² | 91 m² | +21 m² +30% | 2018 |
| 16, Heol James Gravell675 m away | 70 m² | 91 m² | +21 m² +30% | 2018 |
| 20, Heol James Gravell675 m away | 70 m² | 91 m² | +21 m² +30% | 2017 |
| 39, Penyfai Lane161 m away | 128 m² | 148 m² | +20 m² +16% | 2012 |
| 35, Sandy Road861 m away | 101 m² | 119 m² | +18 m² +18% | 2026 |
| 2, The Dingle801 m away | 88 m² | 106 m² | +18 m² +20% | 2017 |
| 14, Pryce Street731 m away | 64 m² | 81 m² | +17 m² +27% | 2021 |
| 142, Sandy Road899 m away | 93 m² | 110 m² | +17 m² +18% | 2019 |
| 116, Sandy Road899 m away | 99 m² | 116 m² | +17 m² +17% | 2015 |
| 25, Miles Street631 m away | 100 m² | 116 m² | +16 m² +16% | 2026 |
| 50, Stryd Bennett646 m away | 54 m² | 70 m² | +16 m² +30% | 2017 |
| 155, Stryd Bennett593 m away | 54 m² | 70 m² | +16 m² +30% | 2016 |
| 153, Stryd Bennett593 m away | 54 m² | 70 m² | +16 m² +30% | 2016 |
| 36, Stradey Park Avenue742 m away | 94 m² | 109 m² | +15 m² +16% | 2013 |
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.