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 3JS
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 |
|---|---|---|---|---|
| 98, Felinfoel Road0 m away | 154 m² | 324 m² | +170 m² +110% | 2015 |
| 118, New Road651 m away | 315 m² | 430 m² | +115 m² +37% | 2017 |
| 94, Felinfoel Road0 m away | 199 m² | 306 m² | +107 m² +54% | 2018 |
| 56, Wern Road828 m away | 59 m² | 146 m² | +87 m² +147% | 2014 |
| 20, Goring Road474 m away | 87 m² | 172 m² | +85 m² +98% | 2026 |
| 4, Clos Yr Ysgol951 m away | 106 m² | 181 m² | +75 m² +71% | 2023 |
| 32, Swansea Road532 m away | 64 m² | 137 m² | +73 m² +114% | 2013 |
| 62, Heol Goffa467 m away | 95 m² | 162 m² | +67 m² +71% | 2025 |
| Ty Ddraig732 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.
| 189 m² |
| +57 m² +43% |
| 2026 |
| 36, Gower View713 m away | 62 m² | 119 m² | +57 m² +92% | 2011 |
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| 4, Woodend Road498 m away | 83 m² | 138 m² | +55 m² +66% | 2014 |
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| 1, Brickyard Cottages455 m away | 75 m² | 128 m² | +53 m² +71% | 2018 |
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| 3, Corporation Avenue344 m away | 98 m² | 148 m² | +50 m² +51% | 2021 |
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| 16, Hillside795 m away | 129 m² | 178 m² | +49 m² +38% | 2017 |
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| 7, Evans Terrace799 m away | 68 m² | 116 m² | +48 m² +71% | 2015 |
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| 16, Spowart Avenue502 m away | 149 m² | 193 m² | +44 m² +30% | 2024 |
|---|
| 2, Woodend Road498 m away | 110 m² | 152 m² | +42 m² +38% | 2024 |
|---|
| 11, Richard Street953 m away | 82 m² | 124 m² | +42 m² +51% | 2023 |
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| 30, Swansea Road532 m away | 180 m² | 222 m² | +42 m² +23% | 2016 |
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| Merrivale, Penygaer Road852 m away | 65 m² | 107 m² | +42 m² +65% | 2013 |
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| 46, Gilbert Road246 m away | 102 m² | 143 m² | +41 m² +40% | 2016 |
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| 7, Cysgod Y Llan455 m away | 259 m² | 299 m² | +40 m² +15% | 2011 |
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| 22, Raby Street966 m away | 88 m² | 127 m² | +39 m² +44% | 2015 |
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| 32, Alban Road845 m away | 73 m² | 111 m² | +38 m² +52% | 2019 |
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| 58, Upper Robinson Street814 m away | 83 m² | 120 m² | +37 m² +45% | 2014 |
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| 18, New Road616 m away | 108 m² | 144 m² | +36 m² +33% | 2025 |
|---|
| 3, Arthur Street999 m away | 76 m² | 112 m² | +36 m² +47% | 2021 |
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| 26, Upper Robinson Street914 m away | 102 m² | 138 m² | +36 m² +35% | 2014 |
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| 108, New Road651 m away | 149 m² | 184 m² | +35 m² +23% | 2024 |
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| 3, Elizabeth Street955 m away | 67 m² | 102 m² | +35 m² +52% | 2018 |
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| 62, Parc Howard Avenue340 m away | 93 m² | 127 m² | +34 m² +37% | 2012 |
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| 186, Felinfoel Road714 m away | 114 m² | 147 m² | +33 m² +29% | 2022 |
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| 11, Waun Road380 m away | 61 m² | 93 m² | +32 m² +52% | 2025 |
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| 17, Stradey Road692 m away | 73 m² | 105 m² | +32 m² +44% | 2025 |
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| 36, Thomas Street447 m away | 44 m² | 76 m² | +32 m² +73% | 2022 |
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| 7, Brynhyfryd108 m away | 83 m² | 115 m² | +32 m² +39% | 2016 |
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| 61, Glenalla Road681 m away | 107 m² | 139 m² | +32 m² +30% | 2015 |
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| 21, Greenway Street841 m away | 101 m² | 133 m² | +32 m² +32% | 2015 |
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| 6, Alban Road845 m away | 105 m² | 136 m² | +31 m² +30% | 2015 |
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| 5, Cwrt Elusendy856 m away | 61 m² | 92 m² | +31 m² +51% | 2015 |
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| 2, Marble Hall Road801 m away | 72 m² | 102 m² | +30 m² +42% | 2024 |
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| 20, Spowart Avenue502 m away | 167 m² | 197 m² | +30 m² +18% | 2023 |
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| 73, New Road685 m away | 151 m² | 181 m² | +30 m² +20% | 2023 |
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| The Bourne, 2, Heol Innes688 m away | 83 m² | 113 m² | +30 m² +36% | 2012 |
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| 41, New Road662 m away | 192 m² | 221 m² | +29 m² +15% | 2025 |
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| 39a, Stradey Road692 m away | 29 m² | 57 m² | +28 m² +97% | 2024 |
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| 18, Swansea Road532 m away | 58 m² | 86 m² | +28 m² +48% | 2016 |
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| 17, Llys Fran495 m away | 79 m² | 107 m² | +28 m² +35% | 2015 |
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| 3, Union Buildings145 m away | 52 m² | 80 m² | +28 m² +54% | 2012 |
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| 29, Upper William Street674 m away | 100 m² | 127 m² | +27 m² +27% | 2016 |
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| 11, Raby Street966 m away | 77 m² | 104 m² | +27 m² +35% | 2015 |
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| 30, College Hill779 m away | 98 m² | 124 m² | +26 m² +27% | 2025 |
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| 2, Cae Cotton760 m away | 96 m² | 122 m² | +26 m² +27% | 2023 |
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| 11, Wern Road827 m away | 78 m² | 104 m² | +26 m² +33% | 2015 |
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| The Mews, 41, Old Road367 m away | 58 m² | 84 m² | +26 m² +45% | 2014 |
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| 48, Derwent Street860 m away | 60 m² | 86 m² | +26 m² +43% | 2011 |
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| 10, Marble Hall Road801 m away | 51 m² | 76 m² | +25 m² +49% | 2023 |
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| 36, Elizabeth Street955 m away | 86 m² | 111 m² | +25 m² +29% | 2021 |
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| 97, James Street604 m away | 102 m² | 127 m² | +25 m² +25% | 2015 |
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| 79, Swansea Road578 m away | 80 m² | 104 m² | +24 m² +30% | 2021 |
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| 10, West End628 m away | 112 m² | 136 m² | +24 m² +21% | 2021 |
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| 18, Richard Street953 m away | 85 m² | 109 m² | +24 m² +28% | 2020 |
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| 44, Spowart Avenue502 m away | 128 m² | 152 m² | +24 m² +19% | 2014 |
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| 214, Felinfoel Road910 m away | 116 m² | 139 m² | +23 m² +20% | 2013 |
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| 42, Penallt Terrace900 m away | 93 m² | 115 m² | +22 m² +24% | 2026 |
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| 14, Clos Yr Ysgol951 m away | 71 m² | 93 m² | +22 m² +31% | 2026 |
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| 106, James Street644 m away | 50 m² | 72 m² | +22 m² +44% | 2021 |
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| 1, Arthur Street999 m away | 93 m² | 115 m² | +22 m² +24% | 2021 |
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| 24, Ann Street982 m away | 82 m² | 104 m² | +22 m² +27% | 2019 |
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| 93, Felinfoel Road143 m away | 102 m² | 124 m² | +22 m² +22% | 2016 |
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| 5, New Road662 m away | 139 m² | 160 m² | +21 m² +15% | 2024 |
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| 40, Elizabeth Street955 m away | 84 m² | 105 m² | +21 m² +25% | 2024 |
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| 32, Penallt Terrace900 m away | 93 m² | 114 m² | +21 m² +23% | 2016 |
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| 29, Clifton Terrace833 m away | 98 m² | 119 m² | +21 m² +21% | 2014 |
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| 42, Andrew Street450 m away | 66 m² | 87 m² | +21 m² +32% | 2013 |
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| 38, Swansea Road532 m away | 73 m² | 94 m² | +21 m² +29% | 2010 |
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| 22, Felinfoel Road247 m away | 70 m² | 90 m² | +20 m² +29% | 2025 |
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| 78, James Street628 m away | 92 m² | 112 m² | +20 m² +22% | 2025 |
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| 29, Bryntirion640 m away | 113 m² | 133 m² | +20 m² +18% | 2022 |
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| 59, Pentrepoeth Road535 m away | 80 m² | 99 m² | +19 m² +24% | 2024 |
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| 50, Marble Hall Road801 m away | 71 m² | 90 m² | +19 m² +27% | 2014 |
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| 63, Glenalla Road681 m away | 90 m² | 108 m² | +18 m² +20% | 2026 |
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| 16, Clos Yr Ysgol951 m away | 106 m² | 124 m² | +18 m² +17% | 2023 |
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| 53, Tyr Fran Avenue341 m away | 107 m² | 125 m² | +18 m² +17% | 2022 |
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| 58, Parc Howard Avenue340 m away | 80 m² | 98 m² | +18 m² +23% | 2017 |
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| 2, The Dingle609 m away | 88 m² | 106 m² | +18 m² +20% | 2017 |
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| 34, Gilbert Crescent268 m away | 66 m² | 83 m² | +17 m² +26% | 2026 |
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| 28, Prospect Place343 m away | 72 m² | 89 m² | +17 m² +24% | 2026 |
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| 2, Arthur Street999 m away | 109 m² | 126 m² | +17 m² +16% | 2026 |
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| 11a, New Road662 m away | 91 m² | 108 m² | +17 m² +19% | 2025 |
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| 14, Pryce Street749 m away | 64 m² | 81 m² | +17 m² +27% | 2021 |
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| 34, Marble Hall Road801 m away | 78 m² | 95 m² | +17 m² +22% | 2016 |
|---|
| 73, Felinfoel Road143 m away | 85 m² | 102 m² | +17 m² +20% | 2015 |
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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 Crescent268 m away | 112 m² | 129 m² | +17 m² +15% | 2014 |
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| 25, Miles Street793 m away | 100 m² | 116 m² | +16 m² +16% | 2026 |
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| 8, Ann Street982 m away | 72 m² | 88 m² | +16 m² +22% | 2024 |
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| 116, Felinfoel Road351 m away | 59 m² | 75 m² | +16 m² +27% | 2021 |
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| 10, Pottery Place745 m away | 69 m² | 85 m² | +16 m² +23% | 2021 |
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| 3 - 5, Goring Road457 m away | 30 m² | 46 m² | +16 m² +53% | 2020 |
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| 17, Old Castle Road983 m away | 92 m² | 108 m² | +16 m² +17% | 2018 |
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| 14, Andrew Street450 m away | 81 m² | 96 m² | +15 m² +19% | 2025 |
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| 61, Wern Road827 m away | 52 m² | 67 m² | +15 m² +29% | 2023 |
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| 41, Gower View713 m away | 96 m² | 111 m² | +15 m² +16% | 2014 |
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| 36, Stradey Park Avenue852 m away | 94 m² | 109 m² | +15 m² +16% | 2013 |
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| 41, Old Castle Road983 m away | 74 m² | 89 m² | +15 m² +20% | 2013 |
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