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 7NJ
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 |
|---|---|---|---|---|
| 1, Beach Road581 m away | 251 m² | 387 m² | +136 m² +54% | 2025 |
| 43, Warblington Road762 m away | 144 m² | 272 m² | +128 m² +89% | 2022 |
| 24, Beacon Square758 m away | 251 m² | 374 m² | +123 m² +49% | 2021 |
| 25, Horndean Road578 m away | 93 m² | 213 m² | +120 m² +129% | 2022 |
| 17, Valetta Park405 m away | 98 m² | 204 m² | +106 m² +108% | 2026 |
| 38, Beacon Square758 m away | 163 m² | 263 m² | +100 m² +61% | 2015 |
| 17, Record Road315 m away | 125 m² | 225 m² | +100 m² +80% | 2013 |
| 10, Warblington Road525 m away | 111 m² | 208 m² | +97 m² +87% | 2017 |
| 4, John King Shipyard968 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.
| 93 m² |
| 174 m² |
| +81 m² +87% |
| 2014 |
| 1b, Beach Road581 m away | 165 m² | 244 m² | +79 m² +48% | 2014 |
|---|
| 41, Warblington Road762 m away | 209 m² | 287 m² | +78 m² +37% | 2024 |
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| 1, The Fishermans910 m away | 153 m² | 230 m² | +77 m² +50% | 2026 |
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| 31, Westbourne Avenue827 m away | 118 m² | 195 m² | +77 m² +65% | 2023 |
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| 27, Beach Road760 m away | 247 m² | 323 m² | +76 m² +31% | 2025 |
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| 38, Westbourne Avenue829 m away | 154 m² | 229 m² | +75 m² +49% | 2025 |
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| 185, Victoria Road517 m away | 95 m² | 170 m² | +75 m² +79% | 2020 |
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| 32, Warblington Road525 m away | 136 m² | 211 m² | +75 m² +55% | 2015 |
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| 11, Kings Road617 m away | 85 m² | 159 m² | +74 m² +87% | 2025 |
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| Kingsley Cottage, 52, Havant Road383 m away | 66 m² | 138 m² | +72 m² +109% | 2009 |
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| 20, New Brighton Road512 m away | 82 m² | 150 m² | +68 m² +83% | 2022 |
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| 10a, Esmond Close604 m away | 138 m² | 206 m² | +68 m² +49% | 2022 |
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| 9, Clovelly Road487 m away | 141 m² | 203 m² | +62 m² +44% | 2013 |
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| 47, North Street393 m away | 102 m² | 163 m² | +61 m² +60% | 2023 |
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| 44, Westbourne Avenue829 m away | 134 m² | 193 m² | +59 m² +44% | 2025 |
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| 14, Clovelly Road487 m away | 176 m² | 235 m² | +59 m² +34% | 2013 |
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| 30, Havant Road359 m away | 284 m² | 342 m² | +58 m² +20% | 2021 |
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| 27, Brook Gardens828 m away | 105 m² | 162 m² | +57 m² +54% | 2023 |
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| 13, Bridgefoot Path512 m away | 46 m² | 103 m² | +57 m² +124% | 2009 |
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| 21, Park Crescent510 m away | 141 m² | 197 m² | +56 m² +40% | 2024 |
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| 15, Park Crescent510 m away | 93 m² | 148 m² | +55 m² +59% | 2013 |
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| 16, New Brighton Road512 m away | 100 m² | 155 m² | +55 m² +55% | 2012 |
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| 18, Beach Road581 m away | 166 m² | 220 m² | +54 m² +33% | 2014 |
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| 34, Kings Road617 m away | 115 m² | 168 m² | +53 m² +46% | 2018 |
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| The Arches, Lumley Road665 m away | 123 m² | 176 m² | +53 m² +43% | 2018 |
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| 6, Highland Close254 m away | 92 m² | 142 m² | +50 m² +54% | 2019 |
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| 49, Victoria Road0 m away | 73 m² | 122 m² | +49 m² +67% | 2022 |
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| 16, Valetta Park405 m away | 96 m² | 144 m² | +48 m² +50% | 2018 |
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| 33, St James Road344 m away | 89 m² | 136 m² | +47 m² +53% | 2018 |
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| 6, Valetta Park405 m away | 134 m² | 181 m² | +47 m² +35% | 2017 |
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| 5, Westgrove Gardens390 m away | 72 m² | 118 m² | +46 m² +64% | 2024 |
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| 21, Westbourne Avenue827 m away | 168 m² | 212 m² | +44 m² +26% | 2021 |
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| 4, Chester Close903 m away | 222 m² | 265 m² | +43 m² +19% | 2025 |
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| 1, Orange Row757 m away | 120 m² | 161 m² | +41 m² +34% | 2022 |
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| 9, Westbourne Avenue827 m away | 115 m² | 155 m² | +40 m² +35% | 2020 |
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| 2, Nore Crescent785 m away | 74 m² | 114 m² | +40 m² +54% | 2014 |
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| 106, Bosmere Gardens167 m away | 85 m² | 125 m² | +40 m² +47% | 2013 |
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| 20, Clovelly Road487 m away | 197 m² | 236 m² | +39 m² +20% | 2026 |
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| 52, King Street943 m away | 139 m² | 177 m² | +38 m² +27% | 2016 |
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| 76, Bosmere Gardens167 m away | 83 m² | 120 m² | +37 m² +45% | 2022 |
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| 44, Nore Crescent785 m away | 92 m² | 129 m² | +37 m² +40% | 2020 |
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| 14, Westbourne Avenue829 m away | 130 m² | 167 m² | +37 m² +28% | 2020 |
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| 76, Westbourne Avenue829 m away | 80 m² | 117 m² | +37 m² +46% | 2015 |
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| 2, The Fishermans910 m away | 173 m² | 209 m² | +36 m² +21% | 2026 |
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| 7, Markway Close558 m away | 93 m² | 128 m² | +35 m² +38% | 2026 |
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| Rookery Cottage, Lumley Road813 m away | 81 m² | 116 m² | +35 m² +43% | 2019 |
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| 28, Bosmere Gardens150 m away | 61 m² | 96 m² | +35 m² +57% | 2014 |
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| 30, Queen Street763 m away | 67 m² | 102 m² | +35 m² +52% | 2012 |
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| 2, Harbour Way983 m away | 114 m² | 148 m² | +34 m² +30% | 2021 |
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| 26, Bath Road678 m away | 119 m² | 153 m² | +34 m² +29% | 2014 |
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| 104, Bosmere Gardens167 m away | 75 m² | 108 m² | +33 m² +44% | 2024 |
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| 15, Frankland Terrace734 m away | 80 m² | 111 m² | +31 m² +39% | 2021 |
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| 10, Highland Close254 m away | 91 m² | 121 m² | +30 m² +33% | 2024 |
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| 21, King Street873 m away | 74 m² | 104 m² | +30 m² +41% | 2020 |
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| 57, Selangor Avenue932 m away | 71 m² | 101 m² | +30 m² +42% | 2017 |
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| 25, Warblington Road453 m away | 133 m² | 162 m² | +29 m² +22% | 2026 |
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| 18, Brent Court826 m away | 140 m² | 169 m² | +29 m² +21% | 2023 |
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| 28a, Clovelly Road487 m away | 106 m² | 134 m² | +28 m² +26% | 2026 |
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| 46a, Victoria Road0 m away | 92 m² | 119 m² | +27 m² +29% | 2023 |
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| 18, Pagham Close971 m away | 44 m² | 70 m² | +26 m² +59% | 2016 |
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| 87, Selangor Avenue675 m away | 64 m² | 90 m² | +26 m² +41% | 2012 |
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| 14, Nile Street634 m away | 85 m² | 111 m² | +26 m² +31% | 2011 |
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| 40, Bridgefoot Path661 m away | 92 m² | 117 m² | +25 m² +27% | 2026 |
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| 72, Westbourne Avenue829 m away | 81 m² | 106 m² | +25 m² +31% | 2026 |
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| 1, Stanley Road997 m away | 96 m² | 121 m² | +25 m² +26% | 2026 |
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| 19, Queen Street788 m away | 129 m² | 154 m² | +25 m² +19% | 2023 |
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| 8, Christopher Way648 m away | 119 m² | 144 m² | +25 m² +21% | 2020 |
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| 7, Victoria Road273 m away | 148 m² | 172 m² | +24 m² +16% | 2022 |
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| 26a, Queen Street763 m away | 53 m² | 77 m² | +24 m² +45% | 2015 |
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| 33, Maisemore Gardens887 m away | 104 m² | 127 m² | +23 m² +22% | 2025 |
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| 6, Orange Row757 m away | 44 m² | 67 m² | +23 m² +52% | 2019 |
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| 20, Pagham Close971 m away | 47 m² | 70 m² | +23 m² +49% | 2016 |
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| 43, Maisemore Gardens887 m away | 104 m² | 126 m² | +22 m² +21% | 2023 |
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| 22c, Bosmere Gardens150 m away | 73 m² | 95 m² | +22 m² +30% | 2015 |
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| 26, Queen Street763 m away | 55 m² | 77 m² | +22 m² +40% | 2015 |
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| 212, Victoria Road517 m away | 103 m² | 123 m² | +20 m² +19% | 2026 |
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| 62, Selangor Avenue885 m away | 64 m² | 84 m² | +20 m² +31% | 2026 |
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| 50, Victoria Road0 m away | 105 m² | 125 m² | +20 m² +19% | 2021 |
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| 21, Ernest Close96 m away | 111 m² | 130 m² | +19 m² +17% | 2022 |
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| 11, Queen Street788 m away | 119 m² | 138 m² | +19 m² +16% | 2019 |
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| 186, Victoria Road517 m away | 49 m² | 68 m² | +19 m² +39% | 2016 |
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| 110, Bosmere Gardens167 m away | 77 m² | 95 m² | +18 m² +23% | 2024 |
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| Flat 7, Rockwood Court, 53 - 55, North Street393 m away | 43 m² | 61 m² | +18 m² +42% | 2024 |
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| 34, Havant Road383 m away | 58 m² | 76 m² | +18 m² +31% | 2023 |
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| 17, Spring Gardens645 m away | 114 m² | 132 m² | +18 m² +16% | 2022 |
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| 16, Park Crescent510 m away | 69 m² | 87 m² | +18 m² +26% | 2020 |
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| 92, Bosmere Gardens167 m away | 94 m² | 112 m² | +18 m² +19% | 2019 |
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| 22, Valetta Park405 m away | 106 m² | 124 m² | +18 m² +17% | 2017 |
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| 3, St James Road322 m away | 87 m² | 104 m² | +17 m² +20% | 2025 |
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| 77, Victoria Road0 m away | 86 m² | 103 m² | +17 m² +20% | 2019 |
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| 5, Kings Terrace611 m away | 73 m² | 89 m² | +16 m² +22% | 2026 |
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| 33, Nore Farm Avenue693 m away | 84 m² | 100 m² | +16 m² +19% | 2026 |
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| 50, Brook Gardens747 m away | 83 m² | 99 m² | +16 m² +19% | 2022 |
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| 28, Helston Drive995 m away | 65 m² | 81 m² | +16 m² +25% | 2016 |
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| 15a, North Street476 m away | 66 m² | 82 m² | +16 m² +24% | 2015 |
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| 16, Nile Street634 m away | 77 m² | 92 m² | +15 m² +19% | 2026 |
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| 10, Selangor Avenue885 m away | 65 m² | 80 m² | +15 m² +23% | 2025 |
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| 37, Bosmere Gardens150 m away | 85 m² | 100 m² | +15 m² +18% | 2024 |
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| 18, Record Road315 m away | 93 m² | 108 m² | +15 m² +16% | 2021 |
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| 109, Brook Gardens747 m away | 71 m² | 86 m² | +15 m² +21% | 2020 |
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| 6, Church Path415 m away | 76 m² | 91 m² | +15 m² +20% | 2019 |
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| 12, Victoria Road273 m away | 68 m² | 83 m² | +15 m² +22% | 2015 |
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| 10, Maisemore Gardens835 m away | 99 m² | 114 m² | +15 m² +15% | 2014 |
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