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 L18 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 |
|---|---|---|---|---|
| 10, Ambleside Road585 m away | 104 m² | 253 m² | +149 m² +143% | 2026 |
| 55, Ambleside Road738 m away | 138 m² | 262 m² | +124 m² +90% | 2014 |
| 230, Allerton Road941 m away | 114 m² | 233 m² | +119 m² +104% | 2025 |
| 66, Greenhill Road491 m away | 117 m² | 214 m² | +97 m² +83% | 2025 |
| 215, Booker Avenue107 m away | 123 m² | 219 m² | +96 m² +78% | 2013 |
| 16, Stroma Road878 m away | 73 m² | 168 m² | +95 m² +130% | 2019 |
| 450, Allerton Road642 m away | 140 m² | 233 m² | +93 m² +66% | 2025 |
| 11, Fawley Road68 m away | 194 m² | 286 m² | +92 m² +47% | 2023 |
| 1, Whitstone Close785 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.
| 159 m² |
| 251 m² |
| +92 m² +58% |
| 2023 |
| 100, Greenhill Road522 m away | 115 m² | 204 m² | +89 m² +77% | 2025 |
|---|
| 4, New Heys Drive763 m away | 229 m² | 317 m² | +88 m² +38% | 2016 |
|---|
| 1, Allerton Beeches485 m away | 253 m² | 340 m² | +87 m² +34% | 2016 |
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| 4, Allerton Drive971 m away | 80 m² | 159 m² | +79 m² +99% | 2024 |
|---|
| 29, Chalfont Road647 m away | 90 m² | 169 m² | +79 m² +88% | 2020 |
|---|
| 5, Glenathol Road0 m away | 139 m² | 217 m² | +78 m² +56% | 2026 |
|---|
| 42, Ballantrae Road361 m away | 192 m² | 270 m² | +78 m² +41% | 2026 |
|---|
| 32, Fawley Road104 m away | 80 m² | 153 m² | +73 m² +91% | 2024 |
|---|
| 4, Farmdale Close554 m away | 104 m² | 172 m² | +68 m² +65% | 2014 |
|---|
| 132, Booker Avenue483 m away | 73 m² | 140 m² | +67 m² +92% | 2024 |
|---|
| 214, Mather Avenue503 m away | 89 m² | 155 m² | +66 m² +74% | 2025 |
|---|
| 180, Mather Avenue284 m away | 135 m² | 201 m² | +66 m² +49% | 2011 |
|---|
| Apartment 2, Yew Tree House, 49, Yew Tree Road433 m away | 107 m² | 172 m² | +65 m² +61% | 2013 |
|---|
| 34, The Vineries929 m away | 98 m² | 160 m² | +62 m² +63% | 2014 |
|---|
| 15, Ballantrae Road412 m away | 185 m² | 246 m² | +61 m² +33% | 2020 |
|---|
| 45, Glendyke Road148 m away | 120 m² | 176 m² | +56 m² +47% | 2025 |
|---|
| 4, Storrsdale Road613 m away | 111 m² | 167 m² | +56 m² +50% | 2024 |
|---|
| 9, Greenhill Road521 m away | 177 m² | 233 m² | +56 m² +32% | 2021 |
|---|
| 158, Booker Avenue215 m away | 130 m² | 186 m² | +56 m² +43% | 2019 |
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| 61, Melbreck Road935 m away | 85 m² | 138 m² | +53 m² +62% | 2026 |
|---|
| 1, Cleveley Road531 m away | 153 m² | 206 m² | +53 m² +35% | 2022 |
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| 12, Calder Grange822 m away | 150 m² | 203 m² | +53 m² +35% | 2014 |
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| 2, Gressingham Road304 m away | 80 m² | 133 m² | +53 m² +66% | 2011 |
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| 157, Mather Avenue218 m away | 142 m² | 194 m² | +52 m² +37% | 2026 |
|---|
| 430, Allerton Road229 m away | 245 m² | 297 m² | +52 m² +21% | 2011 |
|---|
| 31, Ambleside Road738 m away | 109 m² | 158 m² | +49 m² +45% | 2026 |
|---|
| 16, Calder Grange822 m away | 212 m² | 261 m² | +49 m² +23% | 2023 |
|---|
| 15, Greenlake Road551 m away | 99 m² | 147 m² | +48 m² +48% | 2026 |
|---|
| 9, Cleveley Road531 m away | 154 m² | 201 m² | +47 m² +31% | 2026 |
|---|
| 11, Ambleside Road585 m away | 160 m² | 205 m² | +45 m² +28% | 2019 |
|---|
| 10, Whitstone Close785 m away | 139 m² | 183 m² | +44 m² +32% | 2026 |
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| 168, Mather Avenue284 m away | 158 m² | 201 m² | +43 m² +27% | 2024 |
|---|
| 37, Ballantrae Road412 m away | 138 m² | 181 m² | +43 m² +31% | 2014 |
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| 276, Menlove Avenue941 m away | 83 m² | 125 m² | +42 m² +51% | 2024 |
|---|
| 167, Greenhill Road602 m away | 92 m² | 134 m² | +42 m² +46% | 2016 |
|---|
| 257, Mather Avenue797 m away | 167 m² | 209 m² | +42 m² +25% | 2015 |
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| 5, Whitstone Close785 m away | 215 m² | 255 m² | +40 m² +19% | 2025 |
|---|
| 72, Booker Avenue747 m away | 102 m² | 142 m² | +40 m² +39% | 2022 |
|---|
| 28, Calder Grange822 m away | 131 m² | 171 m² | +40 m² +31% | 2016 |
|---|
| 39, Canterbury Park907 m away | 115 m² | 155 m² | +40 m² +35% | 2014 |
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| 111, Booker Avenue754 m away | 88 m² | 127 m² | +39 m² +44% | 2026 |
|---|
| 14, Calder Grange822 m away | 203 m² | 241 m² | +38 m² +19% | 2015 |
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| 141, Abbottshey Avenue663 m away | 98 m² | 135 m² | +37 m² +38% | 2011 |
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| 11, Glenside238 m away | 97 m² | 133 m² | +36 m² +37% | 2018 |
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| 15, New Heys Drive763 m away | 91 m² | 126 m² | +35 m² +38% | 2022 |
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| 7, Ballantrae Road412 m away | 149 m² | 183 m² | +34 m² +23% | 2025 |
|---|
| 3, Stratton Close742 m away | 143 m² | 177 m² | +34 m² +24% | 2023 |
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| 4a, Garth Drive947 m away | 190 m² | 224 m² | +34 m² +18% | 2014 |
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| 1, North Grove576 m away | 79 m² | 112 m² | +33 m² +42% | 2014 |
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| 7, Marion Grove389 m away | 96 m² | 128 m² | +32 m² +33% | 2018 |
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| 211, Booker Avenue107 m away | 193 m² | 225 m² | +32 m² +17% | 2016 |
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| 10, Caithness Road771 m away | 102 m² | 134 m² | +32 m² +31% | 2015 |
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| 14, Isleham Close943 m away | 100 m² | 132 m² | +32 m² +32% | 2013 |
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| 19, Hurstlyn Road752 m away | 74 m² | 105 m² | +31 m² +42% | 2020 |
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| 23, Archerfield Road631 m away | 134 m² | 164 m² | +30 m² +22% | 2025 |
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| 20, Isleham Close943 m away | 108 m² | 138 m² | +30 m² +28% | 2024 |
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| 20, Handlake Drive829 m away | 98 m² | 128 m² | +30 m² +31% | 2016 |
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| 37, Handlake Drive829 m away | 98 m² | 128 m² | +30 m² +31% | 2016 |
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| 57, Ambleside Road738 m away | 167 m² | 195 m² | +28 m² +17% | 2018 |
|---|
| 148, Abbottshey Avenue724 m away | 89 m² | 117 m² | +28 m² +31% | 2015 |
|---|
| 11, Moorcroft Road444 m away | 160 m² | 186 m² | +26 m² +16% | 2020 |
|---|
| 2, Whitstone Close785 m away | 144 m² | 170 m² | +26 m² +18% | 2015 |
|---|
| 8, Ambleside Road585 m away | 105 m² | 131 m² | +26 m² +25% | 2014 |
|---|
| 7, Cleveley Park593 m away | 112 m² | 138 m² | +26 m² +23% | 2013 |
|---|
| 101, Heath Road912 m away | 164 m² | 189 m² | +25 m² +15% | 2024 |
|---|
| 188, Mather Avenue284 m away | 144 m² | 169 m² | +25 m² +17% | 2016 |
|---|
| 59, Dowsefield Lane787 m away | 123 m² | 148 m² | +25 m² +20% | 2014 |
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| 39, Ambleside Road738 m away | 122 m² | 146 m² | +24 m² +20% | 2014 |
|---|
| 24, Calder Grange822 m away | 158 m² | 182 m² | +24 m² +15% | 2014 |
|---|
| 31, Cleveley Road491 m away | 97 m² | 120 m² | +23 m² +24% | 2019 |
|---|
| 22, Mossville Road816 m away | 81 m² | 103 m² | +22 m² +27% | 2017 |
|---|
| 97, Booker Avenue754 m away | 88 m² | 110 m² | +22 m² +25% | 2015 |
|---|
| 122, Booker Avenue483 m away | 122 m² | 143 m² | +21 m² +17% | 2014 |
|---|
| 42, Mossville Road816 m away | 86 m² | 106 m² | +20 m² +23% | 2015 |
|---|
| 288, Mather Avenue812 m away | 93 m² | 113 m² | +20 m² +22% | 2014 |
|---|
| 197, Greenhill Road789 m away | 106 m² | 125 m² | +19 m² +18% | 2014 |
|---|
| 12, Mossville Close949 m away | 84 m² | 103 m² | +19 m² +23% | 2014 |
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| 26, Caithness Road771 m away | 101 m² | 120 m² | +19 m² +19% | 2013 |
|---|
| 23, Keswick Road246 m away | 105 m² | 122 m² | +17 m² +16% | 2020 |
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| 3, Calder Park Court, Calderstones Road981 m away | 66 m² | 82 m² | +16 m² +24% | 2014 |
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| 29, Stroma Road856 m away | 87 m² | 102 m² | +15 m² +17% | 2015 |
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