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 PO10 7QU
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 |
|---|---|---|---|---|
| 606, Southleigh Road642 m away | 87 m² | 207 m² | +120 m² +138% | 2023 |
| 25, Horndean Road409 m away | 93 m² | 213 m² | +120 m² +129% | 2022 |
| 4, Grenfield Court782 m away | 78 m² | 195 m² | +117 m² +150% | 2020 |
| 3, Grenfield Court782 m away | 85 m² | 186 m² | +101 m² +119% | 2025 |
| Shires Barn, White Chimney Row841 m away | 93 m² | 192 m² | +99 m² +106% | 2019 |
| Church House, Westbourne Road655 m away | 301 m² | 387 m² | +86 m² +29% | 2019 |
| 31, Westbourne Avenue57 m away | 118 m² | 195 m² | +77 m² +65% | 2023 |
| 38, Westbourne Avenue0 m away | 154 m² | 229 m² | +75 m² +49% | 2025 |
| 20, New Brighton Road |
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.
| 82 m² |
| 150 m² |
| +68 m² +83% |
| 2022 |
| 21, Wickor Way240 m away | 97 m² | 160 m² | +63 m² +65% | 2017 |
|---|
| 47, North Street668 m away | 102 m² | 163 m² | +61 m² +60% | 2023 |
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| 44, Westbourne Avenue0 m away | 134 m² | 193 m² | +59 m² +44% | 2025 |
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| 63, Westbourne Avenue376 m away | 88 m² | 144 m² | +56 m² +64% | 2024 |
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| 16, New Brighton Road336 m away | 100 m² | 155 m² | +55 m² +55% | 2012 |
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| 24, Birch Tree Drive798 m away | 75 m² | 129 m² | +54 m² +72% | 2020 |
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| 4, Anthony Way733 m away | 93 m² | 147 m² | +54 m² +58% | 2015 |
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| The Arches, Lumley Road558 m away | 123 m² | 176 m² | +53 m² +43% | 2018 |
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| 22, Birch Tree Drive798 m away | 68 m² | 120 m² | +52 m² +76% | 2026 |
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| 10, Hollybank Lane857 m away | 75 m² | 127 m² | +52 m² +69% | 2026 |
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| 1, Longfield Road772 m away | 116 m² | 167 m² | +51 m² +44% | 2024 |
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| 40, Skylark Avenue825 m away | 78 m² | 129 m² | +51 m² +65% | 2024 |
|---|
| 49, Victoria Road829 m away | 73 m² | 122 m² | +49 m² +67% | 2022 |
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| 6, The Grove791 m away | 107 m² | 156 m² | +49 m² +46% | 2014 |
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| 607, Southleigh Road685 m away | 97 m² | 144 m² | +47 m² +48% | 2025 |
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| 33, St James Road883 m away | 89 m² | 136 m² | +47 m² +53% | 2018 |
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| 5, Westgrove Gardens932 m away | 72 m² | 118 m² | +46 m² +64% | 2024 |
|---|
| 21, Westbourne Avenue57 m away | 168 m² | 212 m² | +44 m² +26% | 2021 |
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| 24, Fairlea Road522 m away | 59 m² | 103 m² | +44 m² +75% | 2010 |
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| 85, Westbourne Avenue376 m away | 110 m² | 153 m² | +43 m² +39% | 2013 |
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| 99, Birch Tree Drive886 m away | 64 m² | 106 m² | +42 m² +66% | 2020 |
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| 9, Westbourne Avenue57 m away | 115 m² | 155 m² | +40 m² +35% | 2020 |
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| 106, Bosmere Gardens994 m away | 85 m² | 125 m² | +40 m² +47% | 2013 |
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| 76, Bosmere Gardens994 m away | 83 m² | 120 m² | +37 m² +45% | 2022 |
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| 14, Westbourne Avenue0 m away | 130 m² | 167 m² | +37 m² +28% | 2020 |
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| 76, Westbourne Avenue0 m away | 80 m² | 117 m² | +37 m² +46% | 2015 |
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| Rookery Cottage, Lumley Road866 m away | 81 m² | 116 m² | +35 m² +43% | 2019 |
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| 28, Bosmere Gardens876 m away | 61 m² | 96 m² | +35 m² +57% | 2014 |
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| 104, Bosmere Gardens994 m away | 75 m² | 108 m² | +33 m² +44% | 2024 |
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| 15, Frankland Terrace987 m away | 80 m² | 111 m² | +31 m² +39% | 2021 |
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| 3, Dukes Close865 m away | 89 m² | 120 m² | +31 m² +35% | 2020 |
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| 615, Southleigh Road685 m away | 94 m² | 124 m² | +30 m² +32% | 2026 |
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| 27, Orchard Lane940 m away | 67 m² | 97 m² | +30 m² +45% | 2013 |
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| 94, Westbourne Avenue376 m away | 81 m² | 110 m² | +29 m² +36% | 2016 |
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| 4, Lisle Way977 m away | 73 m² | 101 m² | +28 m² +38% | 2012 |
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| 8, Racton Road524 m away | 68 m² | 95 m² | +27 m² +40% | 2023 |
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| 46a, Victoria Road829 m away | 92 m² | 119 m² | +27 m² +29% | 2023 |
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| 4, Fairlea Road522 m away | 74 m² | 100 m² | +26 m² +35% | 2026 |
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| 36, Skylark Avenue825 m away | 77 m² | 103 m² | +26 m² +34% | 2026 |
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| 18, Pagham Close985 m away | 44 m² | 70 m² | +26 m² +59% | 2016 |
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| 72, Westbourne Avenue0 m away | 81 m² | 106 m² | +25 m² +31% | 2026 |
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| 8, Christopher Way284 m away | 119 m² | 144 m² | +25 m² +21% | 2020 |
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| 7, Victoria Road641 m away | 148 m² | 172 m² | +24 m² +16% | 2022 |
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| 18, Elderfield Close278 m away | 24 m² | 47 m² | +23 m² +96% | 2025 |
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| 20, Pagham Close985 m away | 47 m² | 70 m² | +23 m² +49% | 2016 |
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| Waterways, Westbourne Road655 m away | 108 m² | 130 m² | +22 m² +20% | 2025 |
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| 5, New Road859 m away | 97 m² | 119 m² | +22 m² +23% | 2025 |
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| 22c, Bosmere Gardens876 m away | 73 m² | 95 m² | +22 m² +30% | 2015 |
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| 569, Southleigh Road685 m away | 113 m² | 135 m² | +22 m² +19% | 2012 |
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| 9, Elderfield Close278 m away | 82 m² | 103 m² | +21 m² +26% | 2020 |
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| 50, Victoria Road829 m away | 105 m² | 125 m² | +20 m² +19% | 2021 |
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| 1, Harold Road975 m away | 99 m² | 119 m² | +20 m² +20% | 2014 |
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| 21, Ernest Close863 m away | 111 m² | 130 m² | +19 m² +17% | 2022 |
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| 19, Lewis Road521 m away | 86 m² | 105 m² | +19 m² +22% | 2015 |
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| Flat 7, Rockwood Court, 53 - 55, North Street668 m away | 43 m² | 61 m² | +18 m² +42% | 2024 |
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| 110, Bosmere Gardens994 m away | 77 m² | 95 m² | +18 m² +23% | 2024 |
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| 17, Spring Gardens939 m away | 114 m² | 132 m² | +18 m² +16% | 2022 |
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| 92, Bosmere Gardens994 m away | 94 m² | 112 m² | +18 m² +19% | 2019 |
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| 3, St James Road748 m away | 87 m² | 104 m² | +17 m² +20% | 2025 |
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| 4, Nursery Close724 m away | 76 m² | 93 m² | +17 m² +22% | 2022 |
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| 77, Victoria Road829 m away | 86 m² | 103 m² | +17 m² +20% | 2019 |
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| 547, Southleigh Road850 m away | 109 m² | 126 m² | +17 m² +16% | 2015 |
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| 5, Kings Terrace928 m away | 73 m² | 89 m² | +16 m² +22% | 2026 |
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| 4, Lewis Road521 m away | 81 m² | 97 m² | +16 m² +20% | 2016 |
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| 28, Helston Drive773 m away | 65 m² | 81 m² | +16 m² +25% | 2016 |
|---|
| 15a, North Street775 m away | 66 m² | 82 m² | +16 m² +24% | 2015 |
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| 37, Bosmere Gardens876 m away | 85 m² | 100 m² | +15 m² +18% | 2024 |
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| 6, Church Path875 m away | 76 m² | 91 m² | +15 m² +20% | 2019 |
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| 12, Victoria Road641 m away | 68 m² | 83 m² | +15 m² +22% | 2015 |
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