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 SO18 3AF
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 |
|---|---|---|---|---|
| 3, Barbe Baker Avenue290 m away | 94 m² | 175 m² | +81 m² +86% | 2025 |
| 7, St Francis Avenue731 m away | 104 m² | 180 m² | +76 m² +73% | 2014 |
| 9, Patricia Close758 m away | 95 m² | 170 m² | +75 m² +79% | 2025 |
| 48, Hope Road983 m away | 63 m² | 132 m² | +69 m² +110% | 2023 |
| 25, Sharon Road184 m away | 57 m² | 125 m² | +68 m² +119% | 2026 |
| 9, Hemdean Gardens598 m away | 122 m² | 189 m² | +67 m² +55% | 2023 |
| 201, West End Road855 m away | 179 m² | 245 m² | +66 m² +37% | 2015 |
| 3, Elm Gardens949 m away | 202 m² | 266 m² | +64 m² +32% | 2015 |
| 30, Alpine Close633 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.
| 100 m² |
| +58 m² +138% |
| 2013 |
| 17, Coopers Close175 m away | 94 m² | 150 m² | +56 m² +60% | 2014 |
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| 2, Hornbeam Gardens790 m away | 194 m² | 248 m² | +54 m² +28% | 2026 |
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| 5, Moorhill Road944 m away | 73 m² | 126 m² | +53 m² +73% | 2023 |
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| 24, St James Road874 m away | 53 m² | 102 m² | +49 m² +92% | 2025 |
|---|
| 2, Arun Road546 m away | 70 m² | 119 m² | +49 m² +70% | 2019 |
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| 2, Grosvenor Gardens883 m away | 71 m² | 120 m² | +49 m² +69% | 2016 |
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| 37, Chalk Hill332 m away | 91 m² | 139 m² | +48 m² +53% | 2026 |
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| 26, Onibury Road899 m away | 85 m² | 132 m² | +47 m² +55% | 2025 |
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| 18, Western Road935 m away | 105 m² | 152 m² | +47 m² +45% | 2016 |
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| 32, Fritham Road705 m away | 98 m² | 144 m² | +46 m² +47% | 2014 |
|---|
| 1a, Hemdean Gardens598 m away | 119 m² | 163 m² | +44 m² +37% | 2025 |
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| 69, Chalk Hill332 m away | 103 m² | 147 m² | +44 m² +43% | 2024 |
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| 13, Chapel Close684 m away | 87 m² | 129 m² | +42 m² +48% | 2023 |
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| 271, West End Road605 m away | 137 m² | 176 m² | +39 m² +28% | 2024 |
|---|
| 10, Dyneley Green821 m away | 71 m² | 110 m² | +39 m² +55% | 2014 |
|---|
| 1a, Chapel Road635 m away | 98 m² | 136 m² | +38 m² +39% | 2018 |
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| 204, West End Road833 m away | 98 m² | 135 m² | +37 m² +38% | 2024 |
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| 72, Chapel Road942 m away | 63 m² | 100 m² | +37 m² +59% | 2019 |
|---|
| 19, Windermere Road323 m away | 136 m² | 172 m² | +36 m² +26% | 2022 |
|---|
| 9, Avon Way964 m away | 55 m² | 90 m² | +35 m² +64% | 2023 |
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| 4, Severn Way797 m away | 52 m² | 86 m² | +34 m² +65% | 2026 |
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| 212, Meggeson Avenue929 m away | 50 m² | 84 m² | +34 m² +68% | 2023 |
|---|
| 7, Coopers Close175 m away | 93 m² | 127 m² | +34 m² +37% | 2019 |
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| 20, Roundhill Close785 m away | 64 m² | 96 m² | +32 m² +50% | 2026 |
|---|
| 57, Swaythling Road316 m away | 91 m² | 123 m² | +32 m² +35% | 2020 |
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| 11, Avon Way964 m away | 57 m² | 89 m² | +32 m² +56% | 2020 |
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| 21, Tamar Gardens658 m away | 72 m² | 103 m² | +31 m² +43% | 2026 |
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| 36, Kesteven Way793 m away | 111 m² | 142 m² | +31 m² +28% | 2023 |
|---|
| 51, Wilderness Heights497 m away | 161 m² | 192 m² | +31 m² +19% | 2014 |
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| 85, Midlands Estate258 m away | 104 m² | 134 m² | +30 m² +29% | 2025 |
|---|
| 47, Lambourne Road626 m away | 63 m² | 93 m² | +30 m² +48% | 2025 |
|---|
| 23, Charmwen Crescent265 m away | 74 m² | 103 m² | +29 m² +39% | 2026 |
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| 33, Wilderness Heights497 m away | 153 m² | 182 m² | +29 m² +19% | 2026 |
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| 269, West End Road605 m away | 123 m² | 152 m² | +29 m² +24% | 2022 |
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| Flat 15, Fir Tree Court, West End Road775 m away | 49 m² | 78 m² | +29 m² +59% | 2021 |
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| 7, Torridge Gardens812 m away | 28 m² | 57 m² | +29 m² +104% | 2021 |
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| 31, Hickory Gardens619 m away | 175 m² | 204 m² | +29 m² +17% | 2020 |
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| 29, Swaythling Road316 m away | 94 m² | 123 m² | +29 m² +31% | 2013 |
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| 14, Severn Way797 m away | 67 m² | 94 m² | +27 m² +40% | 2023 |
|---|
| 18, Southern Road995 m away | 109 m² | 136 m² | +27 m² +25% | 2016 |
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| 20, Culvery Gardens611 m away | 124 m² | 150 m² | +26 m² +21% | 2026 |
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| 12, Sharon Road142 m away | 68 m² | 94 m² | +26 m² +38% | 2019 |
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| 15, Sharon Road245 m away | 83 m² | 109 m² | +26 m² +31% | 2016 |
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| 197, West End Road855 m away | 98 m² | 123 m² | +25 m² +26% | 2022 |
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| 36, Lincoln Court, Sharon Road130 m away | 44 m² | 69 m² | +25 m² +57% | 2021 |
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| 38, Onibury Road899 m away | 68 m² | 93 m² | +25 m² +37% | 2016 |
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| 41, Megan Road879 m away | 143 m² | 168 m² | +25 m² +17% | 2014 |
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| 1, Sharon Road245 m away | 62 m² | 85 m² | +23 m² +37% | 2026 |
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| 1, Coopers Close175 m away | 104 m² | 127 m² | +23 m² +22% | 2023 |
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| 216, West End Road833 m away | 109 m² | 132 m² | +23 m² +21% | 2023 |
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| 1, Tamar Gardens658 m away | 27 m² | 49 m² | +22 m² +81% | 2023 |
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| 10, Gorselands Road611 m away | 64 m² | 86 m² | +22 m² +34% | 2013 |
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| 100, Duddon Close434 m away | 21 m² | 42 m² | +21 m² +100% | 2023 |
|---|
| 22, Eden Road391 m away | 104 m² | 125 m² | +21 m² +20% | 2022 |
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| 4, Onibury Close921 m away | 72 m² | 93 m² | +21 m² +29% | 2016 |
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| 15, Nomad Close578 m away | 93 m² | 114 m² | +21 m² +23% | 2012 |
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| 5, Lower New Road663 m away | 80 m² | 100 m² | +20 m² +25% | 2023 |
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| 6, Dyneley Green821 m away | 52 m² | 72 m² | +20 m² +38% | 2022 |
|---|
| 1, Ingersley Rise913 m away | 112 m² | 132 m² | +20 m² +18% | 2016 |
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| 24, Tamar Gardens658 m away | 60 m² | 79 m² | +19 m² +32% | 2023 |
|---|
| 47, Upmill Close873 m away | 93 m² | 112 m² | +19 m² +20% | 2017 |
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| 4, Glenlea Drive447 m away | 58 m² | 77 m² | +19 m² +33% | 2014 |
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| 103, Edelvale Road693 m away | 103 m² | 121 m² | +18 m² +17% | 2025 |
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| 29, Swincombe Rise430 m away | 105 m² | 123 m² | +18 m² +17% | 2023 |
|---|
| 38, Eden Road391 m away | 42 m² | 60 m² | +18 m² +43% | 2021 |
|---|
| 20, Harbourne Gardens549 m away | 74 m² | 92 m² | +18 m² +24% | 2021 |
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| 21, Hazelwood Road809 m away | 91 m² | 109 m² | +18 m² +20% | 2014 |
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| 4, Grosvenor Gardens883 m away | 85 m² | 103 m² | +18 m² +21% | 2013 |
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| 10, Hazelwood Road809 m away | 71 m² | 88 m² | +17 m² +24% | 2026 |
|---|
| 2, Western Road935 m away | 94 m² | 111 m² | +17 m² +18% | 2024 |
|---|
| 52, Wakefield Road972 m away | 82 m² | 99 m² | +17 m² +21% | 2016 |
|---|
| 6, Hilldene Way989 m away | 83 m² | 100 m² | +17 m² +20% | 2015 |
|---|
| 51, Eden Road391 m away | 110 m² | 127 m² | +17 m² +15% | 2010 |
|---|
| 2, Chilcomb Road827 m away | 75 m² | 91 m² | +16 m² +21% | 2025 |
|---|
| 8, Tyne Way948 m away | 60 m² | 76 m² | +16 m² +27% | 2021 |
|---|
| 27, Rutland Way847 m away | 90 m² | 106 m² | +16 m² +18% | 2014 |
|---|
| 11, Kesteven Way793 m away | 79 m² | 94 m² | +15 m² +19% | 2026 |
|---|
| 3, Gatcombe Gardens720 m away | 95 m² | 110 m² | +15 m² +16% | 2025 |
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| 15, Denmead Road854 m away | 86 m² | 101 m² | +15 m² +17% | 2023 |
|---|
| 2, Shrubland Close791 m away | 81 m² | 96 m² | +15 m² +19% | 2021 |
|---|
| 2, Glenlea Drive447 m away | 48 m² | 63 m² | +15 m² +31% | 2014 |
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| 4, Duddon Close488 m away | 55 m² | 70 m² | +15 m² +27% | 2010 |
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