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 1RR
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 Road604 m away | 59 m² | 146 m² | +87 m² +147% | 2014 |
| 12, Caswell Street202 m away | 88 m² | 167 m² | +79 m² +90% | 2013 |
| 26, Grant Street353 m away | 77 m² | 153 m² | +76 m² +99% | 2013 |
| 4, Clos Yr Ysgol751 m away | 106 m² | 181 m² | +75 m² +71% | 2023 |
| 32, Swansea Road939 m away | 64 m² | 137 m² | +73 m² +114% | 2013 |
| 2, Copperworks Road638 m away | 174 m² | 245 m² | +71 m² +41% | 2024 |
| 25, Dillwyn Street208 m away | 68 m² | 138 m² | +70 m² +103% | 2024 |
| 29, Nevill Street701 m away | 130 m² | 190 m² | +60 m² +46% | 2024 |
| 19, Waterloo Street765 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.
| 145 m² |
| +56 m² +63% |
| 2025 |
| 62, Brynallt Terrace894 m away | 77 m² | 131 m² | +54 m² +70% | 2022 |
|---|
| 36, Station Road646 m away | 39 m² | 87 m² | +48 m² +123% | 2020 |
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| 104, New Dock Road665 m away | 94 m² | 142 m² | +48 m² +51% | 2020 |
|---|
| 7, Evans Terrace986 m away | 68 m² | 116 m² | +48 m² +71% | 2015 |
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| 11, Richard Street624 m away | 82 m² | 124 m² | +42 m² +51% | 2023 |
|---|
| 20, Glanmor Road715 m away | 80 m² | 122 m² | +42 m² +53% | 2016 |
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| 30, Swansea Road939 m away | 180 m² | 222 m² | +42 m² +23% | 2016 |
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| 6, Bryn Road953 m away | 87 m² | 129 m² | +42 m² +48% | 2015 |
|---|
| 40, Ropewalk Road672 m away | 95 m² | 136 m² | +41 m² +43% | 2016 |
|---|
| 7, Marine Street885 m away | 158 m² | 198 m² | +40 m² +25% | 2026 |
|---|
| 80, Bryn Road953 m away | 81 m² | 120 m² | +39 m² +48% | 2012 |
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| 32, Alban Road810 m away | 73 m² | 111 m² | +38 m² +52% | 2019 |
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| 67, Dillwyn Street208 m away | 91 m² | 129 m² | +38 m² +42% | 2014 |
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| 58, Upper Robinson Street619 m away | 83 m² | 120 m² | +37 m² +45% | 2014 |
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| 9, Rice Street92 m away | 85 m² | 121 m² | +36 m² +42% | 2025 |
|---|
| 3, Arthur Street532 m away | 76 m² | 112 m² | +36 m² +47% | 2021 |
|---|
| 26, Upper Robinson Street562 m away | 102 m² | 138 m² | +36 m² +35% | 2014 |
|---|
| 3, Elizabeth Street516 m away | 67 m² | 102 m² | +35 m² +52% | 2018 |
|---|
| 1, Westview Terrace302 m away | 96 m² | 131 m² | +35 m² +36% | 2014 |
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| 20, King Georges Avenue497 m away | 105 m² | 139 m² | +34 m² +32% | 2013 |
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| 3, Coedcae Uchaf876 m away | 93 m² | 126 m² | +33 m² +35% | 2019 |
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| 3, Coronation Road305 m away | 98 m² | 131 m² | +33 m² +34% | 2011 |
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| 7, Waterloo Street765 m away | 78 m² | 110 m² | +32 m² +41% | 2024 |
|---|
| 85, Llewellyn Street236 m away | 68 m² | 100 m² | +32 m² +47% | 2023 |
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| 61, Glenalla Road922 m away | 107 m² | 139 m² | +32 m² +30% | 2015 |
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| 62, Firth Road362 m away | 69 m² | 101 m² | +32 m² +46% | 2013 |
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| 7a, New Dock Road513 m away | 106 m² | 137 m² | +31 m² +29% | 2021 |
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| 5, Cwrt Elusendy577 m away | 61 m² | 92 m² | +31 m² +51% | 2015 |
|---|
| 71, Penyfan Road611 m away | 78 m² | 109 m² | +31 m² +40% | 2015 |
|---|
| 6, Alban Road810 m away | 105 m² | 136 m² | +31 m² +30% | 2015 |
|---|
| 2, Marble Hall Road671 m away | 72 m² | 102 m² | +30 m² +42% | 2024 |
|---|
| 39, High Street916 m away | 59 m² | 89 m² | +30 m² +51% | 2023 |
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| 7, New Dock Street813 m away | 112 m² | 142 m² | +30 m² +27% | 2016 |
|---|
| 1, Rice Street92 m away | 101 m² | 130 m² | +29 m² +29% | 2019 |
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| 4, Ralph Terrace808 m away | 88 m² | 117 m² | +29 m² +33% | 2013 |
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| 88, Mansel Street152 m away | 38 m² | 66 m² | +28 m² +74% | 2019 |
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| 18, Swansea Road939 m away | 58 m² | 86 m² | +28 m² +48% | 2016 |
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| 5, King Georges Avenue497 m away | 139 m² | 167 m² | +28 m² +20% | 2014 |
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| 33, Catherine Street968 m away | 69 m² | 97 m² | +28 m² +41% | 2014 |
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| 13, Ralph Street612 m away | 74 m² | 101 m² | +27 m² +36% | 2021 |
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| 8, Inkerman Street702 m away | 50 m² | 77 m² | +27 m² +54% | 2016 |
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| 29, Upper William Street761 m away | 100 m² | 127 m² | +27 m² +27% | 2016 |
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| 30, Westbury Street632 m away | 85 m² | 112 m² | +27 m² +32% | 2014 |
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| 29, Olive Street923 m away | 111 m² | 138 m² | +27 m² +24% | 2013 |
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| 5, Prendergast Street338 m away | 108 m² | 134 m² | +26 m² +24% | 2025 |
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| 30, College Hill737 m away | 98 m² | 124 m² | +26 m² +27% | 2025 |
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| 11, Wern Road604 m away | 78 m² | 104 m² | +26 m² +33% | 2015 |
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| 2, Marsh Street411 m away | 102 m² | 128 m² | +26 m² +25% | 2014 |
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| 56, Nevill Street701 m away | 89 m² | 115 m² | +26 m² +29% | 2014 |
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| 10, Marble Hall Road671 m away | 51 m² | 76 m² | +25 m² +49% | 2023 |
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| 36, Elizabeth Street516 m away | 86 m² | 111 m² | +25 m² +29% | 2021 |
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| 30, Cedric Street435 m away | 89 m² | 114 m² | +25 m² +28% | 2019 |
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| 6, Copperworks Road638 m away | 94 m² | 119 m² | +25 m² +27% | 2017 |
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| 15, Ropewalk Road685 m away | 123 m² | 148 m² | +25 m² +20% | 2015 |
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| 97, James Street973 m away | 102 m² | 127 m² | +25 m² +25% | 2015 |
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| 89, Queen Victoria Road923 m away | 57 m² | 82 m² | +25 m² +44% | 2011 |
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| 18, Richard Street624 m away | 85 m² | 109 m² | +24 m² +28% | 2020 |
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| 1, Christopher Street132 m away | 121 m² | 145 m² | +24 m² +20% | 2019 |
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| 18, Trinity Road404 m away | 109 m² | 132 m² | +23 m² +21% | 2026 |
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| 22, Paddock Street661 m away | 84 m² | 107 m² | +23 m² +27% | 2025 |
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| 11, Walters Road360 m away | 29 m² | 52 m² | +23 m² +79% | 2023 |
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| 3, Highfield Terrace0 m away | 96 m² | 119 m² | +23 m² +24% | 2019 |
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| 65, High Street916 m away | 87 m² | 110 m² | +23 m² +26% | 2015 |
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| 4, Heol Elli548 m away | 87 m² | 110 m² | +23 m² +26% | 2013 |
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| 67, Queen Victoria Road923 m away | 116 m² | 139 m² | +23 m² +20% | 2013 |
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| 14, Clos Yr Ysgol751 m away | 71 m² | 93 m² | +22 m² +31% | 2026 |
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| 17, Railway Terrace720 m away | 59 m² | 81 m² | +22 m² +37% | 2023 |
|---|
| 1, Arthur Street532 m away | 93 m² | 115 m² | +22 m² +24% | 2021 |
|---|
| 49, Biddulph Estate857 m away | 70 m² | 92 m² | +22 m² +31% | 2021 |
|---|
| 24, Ann Street467 m away | 82 m² | 104 m² | +22 m² +27% | 2019 |
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| 9, Marsh Street411 m away | 94 m² | 116 m² | +22 m² +23% | 2016 |
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| 99, Station Road453 m away | 53 m² | 75 m² | +22 m² +42% | 2015 |
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| 5, George Street707 m away | 56 m² | 78 m² | +22 m² +39% | 2015 |
|---|
| 12, Ropewalk Road672 m away | 107 m² | 129 m² | +22 m² +21% | 2013 |
|---|
| 50, Railway Terrace720 m away | 26 m² | 47 m² | +21 m² +81% | 2026 |
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| 40, Elizabeth Street516 m away | 84 m² | 105 m² | +21 m² +25% | 2024 |
|---|
| 32, Pen Y Fon Street517 m away | 69 m² | 90 m² | +21 m² +30% | 2021 |
|---|
| 6, Hick Street390 m away | 106 m² | 127 m² | +21 m² +20% | 2014 |
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| 38, Swansea Road939 m away | 73 m² | 94 m² | +21 m² +29% | 2010 |
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| 78, James Street959 m away | 92 m² | 112 m² | +20 m² +22% | 2025 |
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| 7, Lower Cross Road724 m away | 75 m² | 95 m² | +20 m² +27% | 2020 |
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| 4, Lakefield Road742 m away | 69 m² | 89 m² | +20 m² +29% | 2015 |
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| 22, Glanmor Terrace774 m away | 62 m² | 82 m² | +20 m² +32% | 2015 |
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| 46, New Dock Road516 m away | 76 m² | 96 m² | +20 m² +26% | 2013 |
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| 2, Rice Street92 m away | 79 m² | 98 m² | +19 m² +24% | 2023 |
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| 16, Trinity Road404 m away | 109 m² | 128 m² | +19 m² +17% | 2020 |
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| 73, Llewellyn Street236 m away | 79 m² | 98 m² | +19 m² +24% | 2016 |
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| 97, Ropewalk Road868 m away | 71 m² | 90 m² | +19 m² +27% | 2016 |
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| 23, Russell Street282 m away | 79 m² | 98 m² | +19 m² +24% | 2015 |
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| 50, Marble Hall Road671 m away | 71 m² | 90 m² | +19 m² +27% | 2014 |
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| 1, George Street707 m away | 95 m² | 114 m² | +19 m² +20% | 2013 |
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| 21, Stanley Street730 m away | 77 m² | 96 m² | +19 m² +25% | 2013 |
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| 63, Glenalla Road922 m away | 90 m² | 108 m² | +18 m² +20% | 2026 |
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| 47, Coronation Road305 m away | 74 m² | 92 m² | +18 m² +24% | 2023 |
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| 16, Clos Yr Ysgol751 m away | 106 m² | 124 m² | +18 m² +17% | 2023 |
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| 2, George Street707 m away | 119 m² | 137 m² | +18 m² +15% | 2022 |
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| 36, Bigyn Road229 m away | 93 m² | 111 m² | +18 m² +19% | 2015 |
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| 52, Dillwyn Street230 m away | 63 m² | 81 m² | +18 m² +29% | 2014 |
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| 30, Waterloo Street765 m away | 75 m² | 93 m² | +18 m² +24% | 2014 |
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| 2, Arthur Street532 m away | 109 m² | 126 m² | +17 m² +16% | 2026 |
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| 19, Pencae Terrace830 m away | 82 m² | 99 m² | +17 m² +21% | 2023 |
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| 60, Trinity Road404 m away | 77 m² | 94 m² | +17 m² +22% | 2022 |
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| 34, Pen Y Fon Street517 m away | 65 m² | 82 m² | +17 m² +26% | 2017 |
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| 6, Rice Street92 m away | 81 m² | 98 m² | +17 m² +21% | 2016 |
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| 36, Stafford Street531 m away | 111 m² | 128 m² | +17 m² +15% | 2016 |
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| 34, Marble Hall Road671 m away | 78 m² | 95 m² | +17 m² +22% | 2016 |
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| 2, Amos Street955 m away | 100 m² | 117 m² | +17 m² +17% | 2016 |
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| Loft 19, Pugh Buildings, Cowell Street840 m away | 35 m² | 52 m² | +17 m² +49% | 2015 |
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| 59, Tyisha Road32 m away | 92 m² | 108 m² | +16 m² +17% | 2025 |
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| 8, Ann Street467 m away | 72 m² | 88 m² | +16 m² +22% | 2024 |
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| 44, New Dock Street796 m away | 87 m² | 103 m² | +16 m² +18% | 2023 |
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| 10, Pottery Place693 m away | 69 m² | 85 m² | +16 m² +23% | 2021 |
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| 17, Old Castle Road935 m away | 92 m² | 108 m² | +16 m² +17% | 2018 |
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| 5, Robinson Street571 m away | 73 m² | 89 m² | +16 m² +22% | 2015 |
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| 3, Great Western Crescent568 m away | 71 m² | 87 m² | +16 m² +23% | 2014 |
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| 57, Robinson Street612 m away | 77 m² | 93 m² | +16 m² +21% | 2013 |
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| 19, Mansel Street239 m away | 74 m² | 89 m² | +15 m² +20% | 2026 |
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| Flat 1, Marshfield House, 92, Station Road488 m away | 52 m² | 67 m² | +15 m² +29% | 2023 |
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| 61, Wern Road604 m away | 52 m² | 67 m² | +15 m² +29% | 2023 |
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| 10, Hick Street390 m away | 74 m² | 89 m² | +15 m² +20% | 2022 |
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| 28, Nelson Terrace882 m away | 47 m² | 62 m² | +15 m² +32% | 2018 |
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| 3, Heol Morfa607 m away | 83 m² | 98 m² | +15 m² +18% | 2016 |
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| 22, Bigyn Road380 m away | 100 m² | 115 m² | +15 m² +15% | 2013 |
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| 41, Old Castle Road935 m away | 74 m² | 89 m² | +15 m² +20% | 2013 |
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