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 1LY
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 Road376 m away | 59 m² | 146 m² | +87 m² +147% | 2014 |
| 12, Caswell Street681 m away | 88 m² | 167 m² | +79 m² +90% | 2013 |
| 26, Grant Street562 m away | 77 m² | 153 m² | +76 m² +99% | 2013 |
| 4, Clos Yr Ysgol257 m away | 106 m² | 181 m² | +75 m² +71% | 2023 |
| 32, Swansea Road573 m away | 64 m² | 137 m² | +73 m² +114% | 2013 |
| 25, Dillwyn Street652 m away | 68 m² | 138 m² | +70 m² +103% | 2024 |
| 19, Waterloo Street929 m away | 89 m² | 145 m² | +56 m² +63% | 2025 |
| 4, Woodend Road666 m away | 83 m² | 138 m² | +55 m² +66% | 2014 |
| 62, Brynallt Terrace399 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.
| 131 m² |
| +54 m² +70% |
| 2022 |
| 3, Corporation Avenue842 m away | 98 m² | 148 m² | +50 m² +51% | 2021 |
|---|
| 7, Evans Terrace500 m away | 68 m² | 116 m² | +48 m² +71% | 2015 |
|---|
| 12, Capel Terrace712 m away | 97 m² | 143 m² | +46 m² +47% | 2026 |
|---|
| 2, Woodend Road666 m away | 110 m² | 152 m² | +42 m² +38% | 2024 |
|---|
| 11, Richard Street667 m away | 82 m² | 124 m² | +42 m² +51% | 2023 |
|---|
| 30, Swansea Road573 m away | 180 m² | 222 m² | +42 m² +23% | 2016 |
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| Merrivale, Penygaer Road902 m away | 65 m² | 107 m² | +42 m² +65% | 2013 |
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| 16, Coedcae Road870 m away | 110 m² | 151 m² | +41 m² +37% | 2017 |
|---|
| 46, Gilbert Road966 m away | 102 m² | 143 m² | +41 m² +40% | 2016 |
|---|
| 54, Nightingale Court826 m away | 78 m² | 116 m² | +38 m² +49% | 2020 |
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| 32, Alban Road333 m away | 73 m² | 111 m² | +38 m² +52% | 2019 |
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| 38, Murray Street723 m away | 53 m² | 91 m² | +38 m² +72% | 2019 |
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| 67, Dillwyn Street652 m away | 91 m² | 129 m² | +38 m² +42% | 2014 |
|---|
| 58, Upper Robinson Street435 m away | 83 m² | 120 m² | +37 m² +45% | 2014 |
|---|
| 9, Rice Street578 m away | 85 m² | 121 m² | +36 m² +42% | 2025 |
|---|
| 3, Arthur Street590 m away | 76 m² | 112 m² | +36 m² +47% | 2021 |
|---|
| 26, Upper Robinson Street524 m away | 102 m² | 138 m² | +36 m² +35% | 2014 |
|---|
| 3, Elizabeth Street502 m away | 67 m² | 102 m² | +35 m² +52% | 2018 |
|---|
| 1, Westview Terrace531 m away | 96 m² | 131 m² | +35 m² +36% | 2014 |
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| 20, King Georges Avenue0 m away | 105 m² | 139 m² | +34 m² +32% | 2013 |
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| 3, Coedcae Uchaf506 m away | 93 m² | 126 m² | +33 m² +35% | 2019 |
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| 3, Coronation Road196 m away | 98 m² | 131 m² | +33 m² +34% | 2011 |
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| 7, Waterloo Street929 m away | 78 m² | 110 m² | +32 m² +41% | 2024 |
|---|
| 85, Llewellyn Street704 m away | 68 m² | 100 m² | +32 m² +47% | 2023 |
|---|
| 7, Brynhyfryd999 m away | 83 m² | 115 m² | +32 m² +39% | 2016 |
|---|
| 61, Glenalla Road476 m away | 107 m² | 139 m² | +32 m² +30% | 2015 |
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| 62, Firth Road415 m away | 69 m² | 101 m² | +32 m² +46% | 2013 |
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| 6, Alban Road333 m away | 105 m² | 136 m² | +31 m² +30% | 2015 |
|---|
| 5, Cwrt Elusendy352 m away | 61 m² | 92 m² | +31 m² +51% | 2015 |
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| 71, Penyfan Road520 m away | 78 m² | 109 m² | +31 m² +40% | 2015 |
|---|
| 2, Marble Hall Road313 m away | 72 m² | 102 m² | +30 m² +42% | 2024 |
|---|
| 1, Rice Street578 m away | 101 m² | 130 m² | +29 m² +29% | 2019 |
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| 88, Mansel Street625 m away | 38 m² | 66 m² | +28 m² +74% | 2019 |
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| 18, Swansea Road573 m away | 58 m² | 86 m² | +28 m² +48% | 2016 |
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| 5, King Georges Avenue0 m away | 139 m² | 167 m² | +28 m² +20% | 2014 |
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| 13, Ralph Street703 m away | 74 m² | 101 m² | +27 m² +36% | 2021 |
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| 29, Upper William Street472 m away | 100 m² | 127 m² | +27 m² +27% | 2016 |
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| 8, Inkerman Street798 m away | 50 m² | 77 m² | +27 m² +54% | 2016 |
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| 30, College Hill327 m away | 98 m² | 124 m² | +26 m² +27% | 2025 |
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| 5, Prendergast Street406 m away | 108 m² | 134 m² | +26 m² +24% | 2025 |
|---|
| 2, Cae Cotton889 m away | 96 m² | 122 m² | +26 m² +27% | 2023 |
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| 11, Wern Road391 m away | 78 m² | 104 m² | +26 m² +33% | 2015 |
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| 2, Marsh Street824 m away | 102 m² | 128 m² | +26 m² +25% | 2014 |
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| 10, Marble Hall Road313 m away | 51 m² | 76 m² | +25 m² +49% | 2023 |
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| 36, Elizabeth Street502 m away | 86 m² | 111 m² | +25 m² +29% | 2021 |
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| 30, Cedric Street103 m away | 89 m² | 114 m² | +25 m² +28% | 2019 |
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| 79, Swansea Road601 m away | 80 m² | 104 m² | +24 m² +30% | 2021 |
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| 18, Richard Street667 m away | 85 m² | 109 m² | +24 m² +28% | 2020 |
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| The Barn, Capel Isaf Road890 m away | 111 m² | 135 m² | +24 m² +22% | 2020 |
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| 1, Christopher Street575 m away | 121 m² | 145 m² | +24 m² +20% | 2019 |
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| 8, Frondeg Terrace785 m away | 86 m² | 110 m² | +24 m² +28% | 2014 |
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| 18, Trinity Road897 m away | 109 m² | 132 m² | +23 m² +21% | 2026 |
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| 22, Paddock Street947 m away | 84 m² | 107 m² | +23 m² +27% | 2025 |
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| 11, Walters Road234 m away | 29 m² | 52 m² | +23 m² +79% | 2023 |
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| 33, Frondeg Terrace815 m away | 102 m² | 125 m² | +23 m² +23% | 2023 |
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| 5, Frondeg Terrace785 m away | 68 m² | 91 m² | +23 m² +34% | 2021 |
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| 3, Highfield Terrace497 m away | 96 m² | 119 m² | +23 m² +24% | 2019 |
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| 36, Gelli Deg882 m away | 104 m² | 127 m² | +23 m² +22% | 2016 |
|---|
| 4, Heol Elli103 m away | 87 m² | 110 m² | +23 m² +26% | 2013 |
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| 14, Clos Yr Ysgol257 m away | 71 m² | 93 m² | +22 m² +31% | 2026 |
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| 42, Penallt Terrace661 m away | 93 m² | 115 m² | +22 m² +24% | 2026 |
|---|
| 1, Arthur Street590 m away | 93 m² | 115 m² | +22 m² +24% | 2021 |
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| 106, James Street611 m away | 50 m² | 72 m² | +22 m² +44% | 2021 |
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| 24, Ann Street440 m away | 82 m² | 104 m² | +22 m² +27% | 2019 |
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| 9, Marsh Street824 m away | 94 m² | 116 m² | +22 m² +23% | 2016 |
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| 99, Station Road883 m away | 53 m² | 75 m² | +22 m² +42% | 2015 |
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| 40, Elizabeth Street502 m away | 84 m² | 105 m² | +21 m² +25% | 2024 |
|---|
| 32, Pen Y Fon Street991 m away | 69 m² | 90 m² | +21 m² +30% | 2021 |
|---|
| 36, Station Road859 m away | 39 m² | 60 m² | +21 m² +54% | 2020 |
|---|
| 32, Penallt Terrace661 m away | 93 m² | 114 m² | +21 m² +23% | 2016 |
|---|
| 29, Clifton Terrace592 m away | 98 m² | 119 m² | +21 m² +21% | 2014 |
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| 6, Hick Street770 m away | 106 m² | 127 m² | +21 m² +20% | 2014 |
|---|
| 42, Andrew Street656 m away | 66 m² | 87 m² | +21 m² +32% | 2013 |
|---|
| 38, Swansea Road573 m away | 73 m² | 94 m² | +21 m² +29% | 2010 |
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| 11, Cae Terrace520 m away | 133 m² | 153 m² | +20 m² +15% | 2025 |
|---|
| 78, James Street524 m away | 92 m² | 112 m² | +20 m² +22% | 2025 |
|---|
| 29, Bryntirion745 m away | 113 m² | 133 m² | +20 m² +18% | 2022 |
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| 7, Lower Cross Road276 m away | 75 m² | 95 m² | +20 m² +27% | 2020 |
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| 4, Lakefield Road960 m away | 69 m² | 89 m² | +20 m² +29% | 2015 |
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| 2, Rice Street578 m away | 79 m² | 98 m² | +19 m² +24% | 2023 |
|---|
| 16, Trinity Road897 m away | 109 m² | 128 m² | +19 m² +17% | 2020 |
|---|
| 73, Llewellyn Street704 m away | 79 m² | 98 m² | +19 m² +24% | 2016 |
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| 23, Russell Street772 m away | 79 m² | 98 m² | +19 m² +24% | 2015 |
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| 50, Marble Hall Road313 m away | 71 m² | 90 m² | +19 m² +27% | 2014 |
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| 63, Glenalla Road476 m away | 90 m² | 108 m² | +18 m² +20% | 2026 |
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| 47, Coronation Road196 m away | 74 m² | 92 m² | +18 m² +24% | 2023 |
|---|
| 16, Clos Yr Ysgol257 m away | 106 m² | 124 m² | +18 m² +17% | 2023 |
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| 36, Bigyn Road327 m away | 93 m² | 111 m² | +18 m² +19% | 2015 |
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| 52, Dillwyn Street672 m away | 63 m² | 81 m² | +18 m² +29% | 2014 |
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| 30, Waterloo Street929 m away | 75 m² | 93 m² | +18 m² +24% | 2014 |
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| 2, Arthur Street590 m away | 109 m² | 126 m² | +17 m² +16% | 2026 |
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| 28, Prospect Place801 m away | 72 m² | 89 m² | +17 m² +24% | 2026 |
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| 34, Gilbert Crescent884 m away | 66 m² | 83 m² | +17 m² +26% | 2026 |
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| 24, Ridgewood Park811 m away | 96 m² | 113 m² | +17 m² +18% | 2025 |
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| 19, Pencae Terrace343 m away | 82 m² | 99 m² | +17 m² +21% | 2023 |
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| 60, Trinity Road897 m away | 77 m² | 94 m² | +17 m² +22% | 2022 |
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| 34, Pen Y Fon Street991 m away | 65 m² | 82 m² | +17 m² +26% | 2017 |
|---|
| 34, Marble Hall Road313 m away | 78 m² | 95 m² | +17 m² +22% | 2016 |
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| 6, Rice Street578 m away | 81 m² | 98 m² | +17 m² +21% | 2016 |
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| Loft 19, Pugh Buildings, Cowell Street833 m away | 35 m² | 52 m² | +17 m² +49% | 2015 |
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| 44, Gilbert Crescent884 m away | 112 m² | 129 m² | +17 m² +15% | 2014 |
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| 59, Tyisha Road526 m away | 92 m² | 108 m² | +16 m² +17% | 2025 |
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| 8, Ann Street440 m away | 72 m² | 88 m² | +16 m² +22% | 2024 |
|---|
| 10, Pottery Place506 m away | 69 m² | 85 m² | +16 m² +23% | 2021 |
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| 5, Robinson Street677 m away | 73 m² | 89 m² | +16 m² +22% | 2015 |
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| 3, Great Western Crescent983 m away | 71 m² | 87 m² | +16 m² +23% | 2014 |
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| 57, Robinson Street778 m away | 77 m² | 93 m² | +16 m² +21% | 2013 |
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| 19, Mansel Street604 m away | 74 m² | 89 m² | +15 m² +20% | 2026 |
|---|
| 14, Andrew Street656 m away | 81 m² | 96 m² | +15 m² +19% | 2025 |
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| 61, Wern Road391 m away | 52 m² | 67 m² | +15 m² +29% | 2023 |
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| Flat 1, Marshfield House, 92, Station Road898 m away | 52 m² | 67 m² | +15 m² +29% | 2023 |
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| 10, Hick Street770 m away | 74 m² | 89 m² | +15 m² +20% | 2022 |
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| 3, Heol Morfa927 m away | 83 m² | 98 m² | +15 m² +18% | 2016 |
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| 22, Bigyn Road348 m away | 100 m² | 115 m² | +15 m² +15% | 2013 |
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