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 2NR
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 |
|---|---|---|---|---|
| 12, Caswell Street880 m away | 88 m² | 167 m² | +79 m² +90% | 2013 |
| 2, Copperworks Road324 m away | 174 m² | 245 m² | +71 m² +41% | 2024 |
| 25, Dillwyn Street709 m away | 68 m² | 138 m² | +70 m² +103% | 2024 |
| 29, Nevill Street292 m away | 130 m² | 190 m² | +60 m² +46% | 2024 |
| 19, Waterloo Street632 m away | 89 m² | 145 m² | +56 m² +63% | 2025 |
| 64, Bwlchygwynt952 m away | 135 m² | 184 m² | +49 m² +36% | 2014 |
| 36, Station Road578 m away | 39 m² | 87 m² | +48 m² +123% | 2020 |
| 104, New Dock Road742 m away | 94 m² | 142 m² | +48 m² +51% | 2020 |
| 2, Bryn Place217 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.
| 62 m² |
| 107 m² |
| +45 m² +73% |
| 2023 |
| 11, Richard Street845 m away | 82 m² | 124 m² | +42 m² +51% | 2023 |
|---|
| 20, Glanmor Road204 m away | 80 m² | 122 m² | +42 m² +53% | 2016 |
|---|
| 6, Bryn Road194 m away | 87 m² | 129 m² | +42 m² +48% | 2015 |
|---|
| 7, Marine Street87 m away | 158 m² | 198 m² | +40 m² +25% | 2026 |
|---|
| 38, Pentre Doc Y Gogledd679 m away | 87 m² | 126 m² | +39 m² +45% | 2020 |
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| 80, Bryn Road194 m away | 81 m² | 120 m² | +39 m² +48% | 2012 |
|---|
| 67, Dillwyn Street709 m away | 91 m² | 129 m² | +38 m² +42% | 2014 |
|---|
| 9, Nathan Street180 m away | 61 m² | 98 m² | +37 m² +61% | 2013 |
|---|
| 9, Rice Street827 m away | 85 m² | 121 m² | +36 m² +42% | 2025 |
|---|
| 3, Arthur Street847 m away | 76 m² | 112 m² | +36 m² +47% | 2021 |
|---|
| Flat 23, Cwrt Westfa, Pentre Doc Y Gogledd633 m away | 75 m² | 111 m² | +36 m² +48% | 2019 |
|---|
| 26, Upper Robinson Street955 m away | 102 m² | 138 m² | +36 m² +35% | 2014 |
|---|
| Flat 5, Cwrt Cambria, Pentre Doc Y Gogledd625 m away | 58 m² | 93 m² | +35 m² +60% | 2022 |
|---|
| 3, Elizabeth Street937 m away | 67 m² | 102 m² | +35 m² +52% | 2018 |
|---|
| 1, Westview Terrace789 m away | 96 m² | 131 m² | +35 m² +36% | 2014 |
|---|
| 2, Catherine Street130 m away | 72 m² | 106 m² | +34 m² +47% | 2021 |
|---|
| 7, Waterloo Street632 m away | 78 m² | 110 m² | +32 m² +41% | 2024 |
|---|
| 85, Llewellyn Street684 m away | 68 m² | 100 m² | +32 m² +47% | 2023 |
|---|
| 7a, New Dock Road594 m away | 106 m² | 137 m² | +31 m² +29% | 2021 |
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| 39, High Street329 m away | 59 m² | 89 m² | +30 m² +51% | 2023 |
|---|
| 7, New Dock Street775 m away | 112 m² | 142 m² | +30 m² +27% | 2016 |
|---|
| 1, Rice Street827 m away | 101 m² | 130 m² | +29 m² +29% | 2019 |
|---|
| 4, Ralph Terrace358 m away | 88 m² | 117 m² | +29 m² +33% | 2013 |
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| 88, Mansel Street766 m away | 38 m² | 66 m² | +28 m² +74% | 2019 |
|---|
| 33, Catherine Street123 m away | 69 m² | 97 m² | +28 m² +41% | 2014 |
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| 50, Caroline Street199 m away | 66 m² | 94 m² | +28 m² +42% | 2014 |
|---|
| 13, Ralph Street781 m away | 74 m² | 101 m² | +27 m² +36% | 2021 |
|---|
| 8, Inkerman Street758 m away | 50 m² | 77 m² | +27 m² +54% | 2016 |
|---|
| 24, Cwrt Myrddin, Pentre Doc Y Gogledd700 m away | 69 m² | 96 m² | +27 m² +39% | 2014 |
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| 5, Prendergast Street927 m away | 108 m² | 134 m² | +26 m² +24% | 2025 |
|---|
| 56, Nevill Street292 m away | 89 m² | 115 m² | +26 m² +29% | 2014 |
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| 2, Marsh Street508 m away | 102 m² | 128 m² | +26 m² +25% | 2014 |
|---|
| 48, Brynmor Road617 m away | 110 m² | 136 m² | +26 m² +24% | 2009 |
|---|
| 20, Railway Place297 m away | 77 m² | 102 m² | +25 m² +32% | 2024 |
|---|
| 36, Elizabeth Street937 m away | 86 m² | 111 m² | +25 m² +29% | 2021 |
|---|
| 6, Copperworks Road324 m away | 94 m² | 119 m² | +25 m² +27% | 2017 |
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| 89, Queen Victoria Road521 m away | 57 m² | 82 m² | +25 m² +44% | 2011 |
|---|
| 18, Richard Street845 m away | 85 m² | 109 m² | +24 m² +28% | 2020 |
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| 1, Christopher Street790 m away | 121 m² | 145 m² | +24 m² +20% | 2019 |
|---|
| 18, Trinity Road759 m away | 109 m² | 132 m² | +23 m² +21% | 2026 |
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| 22, Paddock Street438 m away | 84 m² | 107 m² | +23 m² +27% | 2025 |
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| 3, Highfield Terrace916 m away | 96 m² | 119 m² | +23 m² +24% | 2019 |
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| 65, High Street329 m away | 87 m² | 110 m² | +23 m² +26% | 2015 |
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| 67, Queen Victoria Road521 m away | 116 m² | 139 m² | +23 m² +20% | 2013 |
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| 17, Railway Terrace239 m away | 59 m² | 81 m² | +22 m² +37% | 2023 |
|---|
| 1, Arthur Street847 m away | 93 m² | 115 m² | +22 m² +24% | 2021 |
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| 47, Princess Street657 m away | 93 m² | 115 m² | +22 m² +24% | 2020 |
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| 24, Ann Street963 m away | 82 m² | 104 m² | +22 m² +27% | 2019 |
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| 9, Marsh Street508 m away | 94 m² | 116 m² | +22 m² +23% | 2016 |
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| 5, George Street234 m away | 56 m² | 78 m² | +22 m² +39% | 2015 |
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| 99, Station Road464 m away | 53 m² | 75 m² | +22 m² +42% | 2015 |
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| 68, Albert Street680 m away | 102 m² | 124 m² | +22 m² +22% | 2011 |
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| 50, Railway Terrace239 m away | 26 m² | 47 m² | +21 m² +81% | 2026 |
|---|
| 40, Elizabeth Street937 m away | 84 m² | 105 m² | +21 m² +25% | 2024 |
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| 32, Pen Y Fon Street876 m away | 69 m² | 90 m² | +21 m² +30% | 2021 |
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| 6, Hick Street550 m away | 106 m² | 127 m² | +21 m² +20% | 2014 |
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| 22, Glanmor Terrace314 m away | 62 m² | 82 m² | +20 m² +32% | 2015 |
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| 4, Lakefield Road534 m away | 69 m² | 89 m² | +20 m² +29% | 2015 |
|---|
| 46, New Dock Road549 m away | 76 m² | 96 m² | +20 m² +26% | 2013 |
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| 67, Princess Street657 m away | 114 m² | 133 m² | +19 m² +17% | 2026 |
|---|
| 2, Rice Street827 m away | 79 m² | 98 m² | +19 m² +24% | 2023 |
|---|
| 16, Trinity Road759 m away | 109 m² | 128 m² | +19 m² +17% | 2020 |
|---|
| 73, Llewellyn Street684 m away | 79 m² | 98 m² | +19 m² +24% | 2016 |
|---|
| 23, Russell Street683 m away | 79 m² | 98 m² | +19 m² +24% | 2015 |
|---|
| 1, George Street234 m away | 95 m² | 114 m² | +19 m² +20% | 2013 |
|---|
| 21, Stanley Street713 m away | 77 m² | 96 m² | +19 m² +25% | 2013 |
|---|
| 2, George Street234 m away | 119 m² | 137 m² | +18 m² +15% | 2022 |
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| 2, Cwrt Myrddin, Pentre Doc Y Gogledd700 m away | 37 m² | 55 m² | +18 m² +49% | 2022 |
|---|
| 36, Bigyn Road993 m away | 93 m² | 111 m² | +18 m² +19% | 2015 |
|---|
| 30, Waterloo Street632 m away | 75 m² | 93 m² | +18 m² +24% | 2014 |
|---|
| 52, Dillwyn Street687 m away | 63 m² | 81 m² | +18 m² +29% | 2014 |
|---|
| 2, Arthur Street847 m away | 109 m² | 126 m² | +17 m² +16% | 2026 |
|---|
| 60, Trinity Road759 m away | 77 m² | 94 m² | +17 m² +22% | 2022 |
|---|
| 34, Pen Y Fon Street876 m away | 65 m² | 82 m² | +17 m² +26% | 2017 |
|---|
| 2, Amos Street432 m away | 100 m² | 117 m² | +17 m² +17% | 2016 |
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| 36, Stafford Street753 m away | 111 m² | 128 m² | +17 m² +15% | 2016 |
|---|
| 6, Rice Street827 m away | 81 m² | 98 m² | +17 m² +21% | 2016 |
|---|
| Loft 19, Pugh Buildings, Cowell Street924 m away | 35 m² | 52 m² | +17 m² +49% | 2015 |
|---|
| 69, Princess Street657 m away | 103 m² | 120 m² | +17 m² +17% | 2014 |
|---|
| 59, Tyisha Road906 m away | 92 m² | 108 m² | +16 m² +17% | 2025 |
|---|
| 27, Brynmor Road582 m away | 85 m² | 101 m² | +16 m² +19% | 2024 |
|---|
| 8, Ann Street963 m away | 72 m² | 88 m² | +16 m² +22% | 2024 |
|---|
| 44, New Dock Street728 m away | 87 m² | 103 m² | +16 m² +18% | 2023 |
|---|
| 17, Old Castle Road802 m away | 92 m² | 108 m² | +16 m² +17% | 2018 |
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| 5, Robinson Street771 m away | 73 m² | 89 m² | +16 m² +22% | 2015 |
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| 3, Great Western Crescent349 m away | 71 m² | 87 m² | +16 m² +23% | 2014 |
|---|
| 57, Robinson Street669 m away | 77 m² | 93 m² | +16 m² +21% | 2013 |
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| 19, Mansel Street721 m away | 74 m² | 89 m² | +15 m² +20% | 2026 |
|---|
| Flat 1, Marshfield House, 92, Station Road431 m away | 52 m² | 67 m² | +15 m² +29% | 2023 |
|---|
| 10, Hick Street550 m away | 74 m² | 89 m² | +15 m² +20% | 2022 |
|---|
| 28, Nelson Terrace119 m away | 47 m² | 62 m² | +15 m² +32% | 2018 |
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| 41, Old Castle Road802 m away | 74 m² | 89 m² | +15 m² +20% | 2013 |
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| 22, Bigyn Road998 m away | 100 m² | 115 m² | +15 m² +15% | 2013 |
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