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 4DW
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 Road745 m away | 315 m² | 430 m² | +115 m² +37% | 2017 |
| 43, Penyfai Lane965 m away | 124 m² | 191 m² | +67 m² +54% | 2015 |
| 26, Penyfai Lane965 m away | 179 m² | 243 m² | +64 m² +36% | 2013 |
| 16, Hillside983 m away | 129 m² | 178 m² | +49 m² +38% | 2017 |
| 16, Spowart Avenue877 m away | 149 m² | 193 m² | +44 m² +30% | 2024 |
| 12, Stryd Bennett295 m away | 71 m² | 115 m² | +44 m² +62% | 2014 |
| 40, Sandy Road0 m away | 109 m² | 151 m² | +42 m² +39% | 2016 |
| 7, Cysgod Y Llan960 m away | 259 m² | 299 m² | +40 m² +15% | 2011 |
| 38, Pentre Doc Y Gogledd970 m away |
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.
| 87 m² |
| 126 m² |
| +39 m² +45% |
| 2020 |
| 22, Raby Street491 m away | 88 m² | 127 m² | +39 m² +44% | 2015 |
|---|
| 18, Heol James Gravell285 m away | 54 m² | 91 m² | +37 m² +69% | 2018 |
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| 21, Heol James Gravell285 m away | 54 m² | 91 m² | +37 m² +69% | 2017 |
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| 52, Stryd Bennett295 m away | 54 m² | 91 m² | +37 m² +69% | 2017 |
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| 18, New Road831 m away | 108 m² | 144 m² | +36 m² +33% | 2025 |
|---|
| Flat 23, Cwrt Westfa, Pentre Doc Y Gogledd963 m away | 75 m² | 111 m² | +36 m² +48% | 2019 |
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| 108, New Road745 m away | 149 m² | 184 m² | +35 m² +23% | 2024 |
|---|
| 17, Stradey Road966 m away | 73 m² | 105 m² | +32 m² +44% | 2025 |
|---|
| 21, Greenway Street611 m away | 101 m² | 133 m² | +32 m² +32% | 2015 |
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| 73, New Road730 m away | 151 m² | 181 m² | +30 m² +20% | 2023 |
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| 20, Spowart Avenue877 m away | 167 m² | 197 m² | +30 m² +18% | 2023 |
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| 41, New Road736 m away | 192 m² | 221 m² | +29 m² +15% | 2025 |
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| 63, Denham Avenue512 m away | 180 m² | 209 m² | +29 m² +16% | 2024 |
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| 13, Heol James Gravell285 m away | 70 m² | 99 m² | +29 m² +41% | 2018 |
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| 14, Heol James Gravell285 m away | 70 m² | 99 m² | +29 m² +41% | 2018 |
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| 15, Heol James Gravell285 m away | 70 m² | 99 m² | +29 m² +41% | 2018 |
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| 22, Heol James Gravell285 m away | 70 m² | 99 m² | +29 m² +41% | 2017 |
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| 39a, Stradey Road966 m away | 29 m² | 57 m² | +28 m² +97% | 2024 |
|---|
| 11, Raby Street491 m away | 77 m² | 104 m² | +27 m² +35% | 2015 |
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| 48, Derwent Street520 m away | 60 m² | 86 m² | +26 m² +43% | 2011 |
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| 48, Brynmor Road904 m away | 110 m² | 136 m² | +26 m² +24% | 2009 |
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| 107, Sandy Road136 m away | 122 m² | 147 m² | +25 m² +20% | 2014 |
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| 10, West End873 m away | 112 m² | 136 m² | +24 m² +21% | 2021 |
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| 44, Spowart Avenue877 m away | 128 m² | 152 m² | +24 m² +19% | 2014 |
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| 47, Princess Street865 m away | 93 m² | 115 m² | +22 m² +24% | 2020 |
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| 35, Sandpiper Road109 m away | 69 m² | 91 m² | +22 m² +32% | 2014 |
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| 68, Albert Street787 m away | 102 m² | 124 m² | +22 m² +22% | 2011 |
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| 93, Stryd Bennett318 m away | 115 m² | 136 m² | +21 m² +18% | 2025 |
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| 5, New Road736 m away | 139 m² | 160 m² | +21 m² +15% | 2024 |
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| 17, Heol James Gravell285 m away | 70 m² | 91 m² | +21 m² +30% | 2018 |
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| 19, Heol James Gravell285 m away | 70 m² | 91 m² | +21 m² +30% | 2018 |
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| 16, Heol James Gravell285 m away | 70 m² | 91 m² | +21 m² +30% | 2018 |
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| 20, Heol James Gravell285 m away | 70 m² | 91 m² | +21 m² +30% | 2017 |
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| 39, Penyfai Lane965 m away | 128 m² | 148 m² | +20 m² +16% | 2012 |
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| 67, Princess Street865 m away | 114 m² | 133 m² | +19 m² +17% | 2026 |
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| 10, Parkview Terrace490 m away | 94 m² | 113 m² | +19 m² +20% | 2014 |
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| 35, Sandy Road115 m away | 101 m² | 119 m² | +18 m² +18% | 2026 |
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| 11a, New Road736 m away | 91 m² | 108 m² | +17 m² +19% | 2025 |
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| 14, Pryce Street653 m away | 64 m² | 81 m² | +17 m² +27% | 2021 |
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| 142, Sandy Road437 m away | 93 m² | 110 m² | +17 m² +18% | 2019 |
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| 116, Sandy Road437 m away | 99 m² | 116 m² | +17 m² +17% | 2015 |
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| 69, Princess Street865 m away | 103 m² | 120 m² | +17 m² +17% | 2014 |
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| 25, Miles Street667 m away | 100 m² | 116 m² | +16 m² +16% | 2026 |
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| 27, Brynmor Road916 m away | 85 m² | 101 m² | +16 m² +19% | 2024 |
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| 17, Old Castle Road951 m away | 92 m² | 108 m² | +16 m² +17% | 2018 |
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| 50, Stryd Bennett295 m away | 54 m² | 70 m² | +16 m² +30% | 2017 |
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| 155, Stryd Bennett331 m away | 54 m² | 70 m² | +16 m² +30% | 2016 |
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| 153, Stryd Bennett331 m away | 54 m² | 70 m² | +16 m² +30% | 2016 |
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| 36, Stradey Park Avenue531 m away | 94 m² | 109 m² | +15 m² +16% | 2013 |
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| 41, Old Castle Road951 m away | 74 m² | 89 m² | +15 m² +20% | 2013 |
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