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 NP19 9AH
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 |
|---|---|---|---|---|
| 2, Thompson Avenue512 m away | 110 m² | 209 m² | +99 m² +90% | 2019 |
| 94, Aberthaw Road691 m away | 94 m² | 182 m² | +88 m² +94% | 2014 |
| 29, Elgar Avenue990 m away | 53 m² | 119 m² | +66 m² +125% | 2016 |
| 26, Tennyson Road692 m away | 104 m² | 169 m² | +65 m² +63% | 2016 |
| 17, Camperdown Road412 m away | 79 m² | 139 m² | +60 m² +76% | 2023 |
| 53, Elgar Avenue990 m away | 59 m² | 119 m² | +60 m² +102% | 2017 |
| 63, Elgar Avenue990 m away | 59 m² | 119 m² | +60 m² +102% | 2017 |
| 33, Elgar Avenue990 m away | 59 m² | 119 m² | +60 m² +102% | 2016 |
| 15, Elgar Avenue990 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.
| 59 m² |
| 119 m² |
| +60 m² +102% |
| 2016 |
| 17, Elgar Avenue990 m away | 59 m² | 119 m² | +60 m² +102% | 2016 |
|---|
| 10, St Johns Road845 m away | 130 m² | 190 m² | +60 m² +46% | 2011 |
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| 20, St Johns Road845 m away | 75 m² | 123 m² | +48 m² +64% | 2017 |
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| 331, Christchurch Road925 m away | 85 m² | 132 m² | +47 m² +55% | 2018 |
|---|
| 31, Aberthaw Circle443 m away | 66 m² | 111 m² | +45 m² +68% | 2022 |
|---|
| 31, Hamilton Street883 m away | 75 m² | 117 m² | +42 m² +56% | 2022 |
|---|
| 98, Aberthaw Road691 m away | 77 m² | 116 m² | +39 m² +51% | 2016 |
|---|
| 603, Chepstow Road741 m away | 124 m² | 161 m² | +37 m² +30% | 2021 |
|---|
| 45, Elgar Avenue990 m away | 37 m² | 74 m² | +37 m² +100% | 2017 |
|---|
| 28, St Johns Road845 m away | 231 m² | 268 m² | +37 m² +16% | 2013 |
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| 5, St Johns Road845 m away | 191 m² | 228 m² | +37 m² +19% | 2012 |
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| 34, Tennyson Road692 m away | 84 m² | 119 m² | +35 m² +42% | 2025 |
|---|
| 8, Cromwell Road881 m away | 95 m² | 130 m² | +35 m² +37% | 2023 |
|---|
| 7, Penylan Road488 m away | 92 m² | 127 m² | +35 m² +38% | 2014 |
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| 17, Dewstow Street978 m away | 96 m² | 130 m² | +34 m² +35% | 2016 |
|---|
| 14, Ifton Street532 m away | 75 m² | 108 m² | +33 m² +44% | 2014 |
|---|
| 407a, Chepstow Road297 m away | 39 m² | 72 m² | +33 m² +85% | 2010 |
|---|
| 352, Chepstow Road578 m away | 68 m² | 100 m² | +32 m² +47% | 2022 |
|---|
| 129, Liswerry Road704 m away | 85 m² | 116 m² | +31 m² +36% | 2023 |
|---|
| 19, Tennyson Road692 m away | 50 m² | 81 m² | +31 m² +62% | 2019 |
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| 23, Elgar Avenue990 m away | 77 m² | 107 m² | +30 m² +39% | 2016 |
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| 25, Elgar Avenue990 m away | 77 m² | 107 m² | +30 m² +39% | 2016 |
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| 232a, Christchurch Road882 m away | 159 m² | 188 m² | +29 m² +18% | 2024 |
|---|
| 69, Elgar Avenue990 m away | 30 m² | 59 m² | +29 m² +97% | 2017 |
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| 11, Elgar Avenue990 m away | 30 m² | 59 m² | +29 m² +97% | 2016 |
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| 30, Tennyson Road692 m away | 89 m² | 117 m² | +28 m² +31% | 2026 |
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| 32, St Johns Road845 m away | 142 m² | 170 m² | +28 m² +20% | 2022 |
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| 38, Woodland Park Road989 m away | 106 m² | 133 m² | +27 m² +25% | 2026 |
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| 334, Chepstow Road664 m away | 141 m² | 168 m² | +27 m² +19% | 2019 |
|---|
| 21, Warwick Road372 m away | 88 m² | 115 m² | +27 m² +31% | 2015 |
|---|
| 2, Henry Wood Close807 m away | 71 m² | 97 m² | +26 m² +37% | 2025 |
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| 11, Rochester Road926 m away | 100 m² | 126 m² | +26 m² +26% | 2025 |
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| 76, Somerton Road571 m away | 50 m² | 76 m² | +26 m² +52% | 2024 |
|---|
| 46, Liscombe Street628 m away | 96 m² | 122 m² | +26 m² +27% | 2018 |
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| 38, Somerton Road228 m away | 82 m² | 108 m² | +26 m² +32% | 2016 |
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| 61, Gibbs Road400 m away | 93 m² | 119 m² | +26 m² +28% | 2016 |
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| 201, Christchurch Road951 m away | 114 m² | 140 m² | +26 m² +23% | 2013 |
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| 9, Chaucer Road769 m away | 85 m² | 110 m² | +25 m² +29% | 2022 |
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| 148, Thompson Avenue608 m away | 95 m² | 120 m² | +25 m² +26% | 2016 |
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| 146, Thompson Avenue608 m away | 74 m² | 98 m² | +24 m² +32% | 2021 |
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| 1, Rosslyn Road962 m away | 107 m² | 131 m² | +24 m² +22% | 2016 |
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| 100, Aberthaw Circle429 m away | 83 m² | 106 m² | +23 m² +28% | 2021 |
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| 443, Corporation Road976 m away | 60 m² | 83 m² | +23 m² +38% | 2021 |
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| 29, Beechdale Road527 m away | 103 m² | 126 m² | +23 m² +22% | 2018 |
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| 275, Chepstow Road631 m away | 107 m² | 130 m² | +23 m² +21% | 2014 |
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| 52, Dewstow Street872 m away | 118 m² | 141 m² | +23 m² +19% | 2014 |
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| 239, Chepstow Road631 m away | 92 m² | 115 m² | +23 m² +25% | 2013 |
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| 15, Arundel Road781 m away | 107 m² | 129 m² | +22 m² +21% | 2024 |
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| 33, East Grove Road572 m away | 122 m² | 144 m² | +22 m² +18% | 2023 |
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| 21, Milton Road655 m away | 72 m² | 94 m² | +22 m² +31% | 2021 |
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| 47, Elgar Avenue990 m away | 37 m² | 59 m² | +22 m² +59% | 2017 |
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| 213, Chepstow Road897 m away | 24 m² | 46 m² | +22 m² +92% | 2009 |
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| 19, Hillview Crescent974 m away | 71 m² | 92 m² | +21 m² +30% | 2025 |
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| 12, Bleriot Close858 m away | 73 m² | 94 m² | +21 m² +29% | 2023 |
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| 25, East Grove Road572 m away | 56 m² | 77 m² | +21 m² +38% | 2015 |
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| 8, Fairfax Road574 m away | 77 m² | 98 m² | +21 m² +27% | 2014 |
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| 71, Parry Drive742 m away | 120 m² | 141 m² | +21 m² +18% | 2014 |
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| 3, Linden Road186 m away | 118 m² | 139 m² | +21 m² +18% | 2013 |
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| 142, Liswerry Road746 m away | 76 m² | 97 m² | +21 m² +28% | 2010 |
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| 6, Moorland Avenue806 m away | 75 m² | 95 m² | +20 m² +27% | 2025 |
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| 94, Somerton Road571 m away | 37 m² | 57 m² | +20 m² +54% | 2023 |
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| 49, Nash Road879 m away | 69 m² | 89 m² | +20 m² +29% | 2022 |
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| 15, Collingwood Road364 m away | 75 m² | 95 m² | +20 m² +27% | 2021 |
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| 6, Lawrence Hill Avenue420 m away | 86 m² | 106 m² | +20 m² +23% | 2021 |
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| 23, Conway Road799 m away | 86 m² | 106 m² | +20 m² +23% | 2013 |
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| 81, Liswerry Road704 m away | 86 m² | 106 m² | +20 m² +23% | 2011 |
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| 28, Royston Crescent464 m away | 70 m² | 89 m² | +19 m² +27% | 2019 |
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| 99, Somerton Road571 m away | 81 m² | 100 m² | +19 m² +23% | 2013 |
|---|
| 3, Moorland Gardens835 m away | 95 m² | 113 m² | +18 m² +19% | 2026 |
|---|
| 3, Adrian Boult Green849 m away | 80 m² | 98 m² | +18 m² +23% | 2024 |
|---|
| 36, Blenheim Road564 m away | 84 m² | 102 m² | +18 m² +21% | 2020 |
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| 32, Downing Street590 m away | 84 m² | 102 m² | +18 m² +21% | 2015 |
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| 5, Penylan Road488 m away | 105 m² | 123 m² | +18 m² +17% | 2013 |
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| 54, Hampden Road608 m away | 45 m² | 63 m² | +18 m² +40% | 2010 |
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| Flat 3, Cromwell Court, 252, Cromwell Road496 m away | 43 m² | 60 m² | +17 m² +40% | 2025 |
|---|
| 20, Aberthaw Circle493 m away | 71 m² | 88 m² | +17 m² +24% | 2024 |
|---|
| 30, Moorland Park838 m away | 76 m² | 93 m² | +17 m² +22% | 2022 |
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| 2, Rosslyn Road962 m away | 88 m² | 105 m² | +17 m² +19% | 2017 |
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| 1, Ladyhill Road911 m away | 82 m² | 99 m² | +17 m² +21% | 2016 |
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| 9, Collingwood Avenue348 m away | 53 m² | 70 m² | +17 m² +32% | 2015 |
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| 10, Walden Grange Close426 m away | 89 m² | 105 m² | +16 m² +18% | 2025 |
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| 21, Penylan Road488 m away | 93 m² | 109 m² | +16 m² +17% | 2025 |
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| 72, Upper Tennyson Road665 m away | 76 m² | 92 m² | +16 m² +21% | 2022 |
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| 87, Thompson Avenue607 m away | 71 m² | 87 m² | +16 m² +23% | 2021 |
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| 60, Dewstow Street872 m away | 78 m² | 94 m² | +16 m² +21% | 2019 |
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| 56, Windsor Road625 m away | 81 m² | 97 m² | +16 m² +20% | 2014 |
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| 57, Tennyson Road563 m away | 73 m² | 89 m² | +16 m² +22% | 2013 |
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| 80, Beechwood Road741 m away | 78 m² | 94 m² | +16 m² +21% | 2012 |
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| 209, Chepstow Road897 m away | 65 m² | 81 m² | +16 m² +25% | 2009 |
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| 12, Milton Road655 m away | 77 m² | 92 m² | +15 m² +19% | 2024 |
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| 4, Slade Street943 m away | 84 m² | 99 m² | +15 m² +18% | 2023 |
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| 41, Fairfax Road574 m away | 87 m² | 102 m² | +15 m² +17% | 2022 |
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| 13, Penylan Road488 m away | 89 m² | 104 m² | +15 m² +17% | 2020 |
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| 20, Wright Close716 m away | 48 m² | 63 m² | +15 m² +31% | 2020 |
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| 29, Caldicot Street988 m away | 98 m² | 113 m² | +15 m² +15% | 2020 |
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| 8, Milton Road655 m away | 81 m² | 96 m² | +15 m² +19% | 2016 |
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| 66, Moorland Park941 m away | 71 m² | 86 m² | +15 m² +21% | 2015 |
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| 30, Warwick Road372 m away | 93 m² | 108 m² | +15 m² +16% | 2013 |
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