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 2TU
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 |
|---|---|---|---|---|
| 56, Wern Road943 m away | 59 m² | 146 m² | +87 m² +147% | 2014 |
| 20, Goring Road924 m away | 87 m² | 172 m² | +85 m² +98% | 2026 |
| 2, Copperworks Road610 m away | 174 m² | 245 m² | +71 m² +41% | 2024 |
| 25, Dillwyn Street765 m away | 68 m² | 138 m² | +70 m² +103% | 2024 |
| 29, Nevill Street309 m away | 130 m² | 190 m² | +60 m² +46% | 2024 |
| 19, Waterloo Street309 m away | 89 m² | 145 m² | +56 m² +63% | 2025 |
| 36, Station Road351 m away | 39 m² | 87 m² | +48 m² +123% | 2020 |
| 2, Bryn Place254 m away | 62 m² | 107 m² | +45 m² +73% | 2023 |
| 11, Richard Street587 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.
| 124 m² |
| +42 m² +51% |
| 2023 |
| 20, Glanmor Road474 m away | 80 m² | 122 m² | +42 m² +53% | 2016 |
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| 6, Bryn Road247 m away | 87 m² | 129 m² | +42 m² +48% | 2015 |
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| 7, Marine Street507 m away | 158 m² | 198 m² | +40 m² +25% | 2026 |
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| 7, Cysgod Y Llan991 m away | 259 m² | 299 m² | +40 m² +15% | 2011 |
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| 38, Pentre Doc Y Gogledd580 m away | 87 m² | 126 m² | +39 m² +45% | 2020 |
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| 22, Raby Street750 m away | 88 m² | 127 m² | +39 m² +44% | 2015 |
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| 80, Bryn Road247 m away | 81 m² | 120 m² | +39 m² +48% | 2012 |
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| 67, Dillwyn Street765 m away | 91 m² | 129 m² | +38 m² +42% | 2014 |
|---|
| 58, Upper Robinson Street887 m away | 83 m² | 120 m² | +37 m² +45% | 2014 |
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| 9, Nathan Street336 m away | 61 m² | 98 m² | +37 m² +61% | 2013 |
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| 18, New Road858 m away | 108 m² | 144 m² | +36 m² +33% | 2025 |
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| 9, Rice Street886 m away | 85 m² | 121 m² | +36 m² +42% | 2025 |
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| 3, Arthur Street636 m away | 76 m² | 112 m² | +36 m² +47% | 2021 |
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| Flat 23, Cwrt Westfa, Pentre Doc Y Gogledd519 m away | 75 m² | 111 m² | +36 m² +48% | 2019 |
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| 26, Upper Robinson Street731 m away | 102 m² | 138 m² | +36 m² +35% | 2014 |
|---|
| Flat 5, Cwrt Cambria, Pentre Doc Y Gogledd626 m away | 58 m² | 93 m² | +35 m² +60% | 2022 |
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| 3, Elizabeth Street733 m away | 67 m² | 102 m² | +35 m² +52% | 2018 |
|---|
| 1, Westview Terrace708 m away | 96 m² | 131 m² | +35 m² +36% | 2014 |
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| 2, Catherine Street528 m away | 72 m² | 106 m² | +34 m² +47% | 2021 |
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| 7, Waterloo Street309 m away | 78 m² | 110 m² | +32 m² +41% | 2024 |
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| 85, Llewellyn Street777 m away | 68 m² | 100 m² | +32 m² +47% | 2023 |
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| 36, Thomas Street949 m away | 44 m² | 76 m² | +32 m² +73% | 2022 |
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| 21, Greenway Street765 m away | 101 m² | 133 m² | +32 m² +32% | 2015 |
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| 7a, New Dock Road860 m away | 106 m² | 137 m² | +31 m² +29% | 2021 |
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| 5, Cwrt Elusendy946 m away | 61 m² | 92 m² | +31 m² +51% | 2015 |
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| 39, High Street103 m away | 59 m² | 89 m² | +30 m² +51% | 2023 |
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| 41, New Road909 m away | 192 m² | 221 m² | +29 m² +15% | 2025 |
|---|
| 1, Rice Street886 m away | 101 m² | 130 m² | +29 m² +29% | 2019 |
|---|
| 4, Ralph Terrace157 m away | 88 m² | 117 m² | +29 m² +33% | 2013 |
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| 88, Mansel Street833 m away | 38 m² | 66 m² | +28 m² +74% | 2019 |
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| 33, Catherine Street552 m away | 69 m² | 97 m² | +28 m² +41% | 2014 |
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| 50, Caroline Street612 m away | 66 m² | 94 m² | +28 m² +42% | 2014 |
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| 13, Ralph Street531 m away | 74 m² | 101 m² | +27 m² +36% | 2021 |
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| 8, Inkerman Street462 m away | 50 m² | 77 m² | +27 m² +54% | 2016 |
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| 11, Raby Street750 m away | 77 m² | 104 m² | +27 m² +35% | 2015 |
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| 24, Cwrt Myrddin, Pentre Doc Y Gogledd632 m away | 69 m² | 96 m² | +27 m² +39% | 2014 |
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| 5, Prendergast Street807 m away | 108 m² | 134 m² | +26 m² +24% | 2025 |
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| 11, Wern Road926 m away | 78 m² | 104 m² | +26 m² +33% | 2015 |
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| 56, Nevill Street309 m away | 89 m² | 115 m² | +26 m² +29% | 2014 |
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| 2, Marsh Street592 m away | 102 m² | 128 m² | +26 m² +25% | 2014 |
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| 48, Derwent Street918 m away | 60 m² | 86 m² | +26 m² +43% | 2011 |
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| 48, Brynmor Road185 m away | 110 m² | 136 m² | +26 m² +24% | 2009 |
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| 20, Railway Place249 m away | 77 m² | 102 m² | +25 m² +32% | 2024 |
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| 36, Elizabeth Street733 m away | 86 m² | 111 m² | +25 m² +29% | 2021 |
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| 6, Copperworks Road610 m away | 94 m² | 119 m² | +25 m² +27% | 2017 |
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| 89, Queen Victoria Road108 m away | 57 m² | 82 m² | +25 m² +44% | 2011 |
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| 10, West End804 m away | 112 m² | 136 m² | +24 m² +21% | 2021 |
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| 18, Richard Street587 m away | 85 m² | 109 m² | +24 m² +28% | 2020 |
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| 1, Christopher Street826 m away | 121 m² | 145 m² | +24 m² +20% | 2019 |
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| 18, Trinity Road979 m away | 109 m² | 132 m² | +23 m² +21% | 2026 |
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| 22, Paddock Street294 m away | 84 m² | 107 m² | +23 m² +27% | 2025 |
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| 11, Walters Road977 m away | 29 m² | 52 m² | +23 m² +79% | 2023 |
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| 3, Highfield Terrace955 m away | 96 m² | 119 m² | +23 m² +24% | 2019 |
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| 65, High Street103 m away | 87 m² | 110 m² | +23 m² +26% | 2015 |
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| 67, Queen Victoria Road108 m away | 116 m² | 139 m² | +23 m² +20% | 2013 |
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| 17, Railway Terrace338 m away | 59 m² | 81 m² | +22 m² +37% | 2023 |
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| 1, Arthur Street636 m away | 93 m² | 115 m² | +22 m² +24% | 2021 |
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| 47, Princess Street225 m away | 93 m² | 115 m² | +22 m² +24% | 2020 |
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| 24, Ann Street783 m away | 82 m² | 104 m² | +22 m² +27% | 2019 |
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| 9, Marsh Street592 m away | 94 m² | 116 m² | +22 m² +23% | 2016 |
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| 5, George Street541 m away | 56 m² | 78 m² | +22 m² +39% | 2015 |
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| 99, Station Road595 m away | 53 m² | 75 m² | +22 m² +42% | 2015 |
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| 68, Albert Street266 m away | 102 m² | 124 m² | +22 m² +22% | 2011 |
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| 50, Railway Terrace338 m away | 26 m² | 47 m² | +21 m² +81% | 2026 |
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| 40, Elizabeth Street733 m away | 84 m² | 105 m² | +21 m² +25% | 2024 |
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| 5, New Road909 m away | 139 m² | 160 m² | +21 m² +15% | 2024 |
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| 6, Hick Street577 m away | 106 m² | 127 m² | +21 m² +20% | 2014 |
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| 22, Glanmor Terrace212 m away | 62 m² | 82 m² | +20 m² +32% | 2015 |
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| 4, Lakefield Road250 m away | 69 m² | 89 m² | +20 m² +29% | 2015 |
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| 46, New Dock Road812 m away | 76 m² | 96 m² | +20 m² +26% | 2013 |
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| 67, Princess Street225 m away | 114 m² | 133 m² | +19 m² +17% | 2026 |
|---|
| 2, Rice Street886 m away | 79 m² | 98 m² | +19 m² +24% | 2023 |
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| 16, Trinity Road979 m away | 109 m² | 128 m² | +19 m² +17% | 2020 |
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| 73, Llewellyn Street777 m away | 79 m² | 98 m² | +19 m² +24% | 2016 |
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| 23, Russell Street828 m away | 79 m² | 98 m² | +19 m² +24% | 2015 |
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| 10, Parkview Terrace701 m away | 94 m² | 113 m² | +19 m² +20% | 2014 |
|---|
| 1, George Street541 m away | 95 m² | 114 m² | +19 m² +20% | 2013 |
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| 35, Sandy Road971 m away | 101 m² | 119 m² | +18 m² +18% | 2026 |
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| 2, George Street541 m away | 119 m² | 137 m² | +18 m² +15% | 2022 |
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| 2, Cwrt Myrddin, Pentre Doc Y Gogledd632 m away | 37 m² | 55 m² | +18 m² +49% | 2022 |
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| 36, Bigyn Road928 m away | 93 m² | 111 m² | +18 m² +19% | 2015 |
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| 30, Waterloo Street309 m away | 75 m² | 93 m² | +18 m² +24% | 2014 |
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| 52, Dillwyn Street747 m away | 63 m² | 81 m² | +18 m² +29% | 2014 |
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| 2, Arthur Street636 m away | 109 m² | 126 m² | +17 m² +16% | 2026 |
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| 11a, New Road909 m away | 91 m² | 108 m² | +17 m² +19% | 2025 |
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| 60, Trinity Road979 m away | 77 m² | 94 m² | +17 m² +22% | 2022 |
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| 2, Amos Street0 m away | 100 m² | 117 m² | +17 m² +17% | 2016 |
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| 6, Rice Street886 m away | 81 m² | 98 m² | +17 m² +21% | 2016 |
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| Loft 19, Pugh Buildings, Cowell Street576 m away | 35 m² | 52 m² | +17 m² +49% | 2015 |
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| 69, Princess Street225 m away | 103 m² | 120 m² | +17 m² +17% | 2014 |
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| 59, Tyisha Road959 m away | 92 m² | 108 m² | +16 m² +17% | 2025 |
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| 27, Brynmor Road151 m away | 85 m² | 101 m² | +16 m² +19% | 2024 |
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| 8, Ann Street783 m away | 72 m² | 88 m² | +16 m² +22% | 2024 |
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| 10, Pottery Place877 m away | 69 m² | 85 m² | +16 m² +23% | 2021 |
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| 3 - 5, Goring Road952 m away | 30 m² | 46 m² | +16 m² +53% | 2020 |
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| 17, Old Castle Road405 m away | 92 m² | 108 m² | +16 m² +17% | 2018 |
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| 5, Robinson Street545 m away | 73 m² | 89 m² | +16 m² +22% | 2015 |
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| 3, Great Western Crescent507 m away | 71 m² | 87 m² | +16 m² +23% | 2014 |
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| 57, Robinson Street436 m away | 77 m² | 93 m² | +16 m² +21% | 2013 |
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| 19, Mansel Street716 m away | 74 m² | 89 m² | +15 m² +20% | 2026 |
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| Flat 1, Marshfield House, 92, Station Road538 m away | 52 m² | 67 m² | +15 m² +29% | 2023 |
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| 61, Wern Road926 m away | 52 m² | 67 m² | +15 m² +29% | 2023 |
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| 10, Hick Street577 m away | 74 m² | 89 m² | +15 m² +20% | 2022 |
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| 28, Nelson Terrace316 m away | 47 m² | 62 m² | +15 m² +32% | 2018 |
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| 41, Old Castle Road405 m away | 74 m² | 89 m² | +15 m² +20% | 2013 |
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| 22, Bigyn Road862 m away | 100 m² | 115 m² | +15 m² +15% | 2013 |
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