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 UB9 5JR
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 |
|---|---|---|---|---|
| 23, Penn Drive176 m away | 122 m² | 252 m² | +130 m² +107% | 2025 |
| 107, Tilehouse Way371 m away | 113 m² | 240 m² | +127 m² +112% | 2026 |
| 4, Ashcroft Drive248 m away | 78 m² | 161 m² | +83 m² +106% | 2015 |
| 40, Nightingale Way112 m away | 105 m² | 184 m² | +79 m² +75% | 2020 |
| The Small House, Slade Oak Lane956 m away | 162 m² | 240 m² | +78 m² +48% | 2015 |
| 37, Penn Drive176 m away | 98 m² | 173 m² | +75 m² +77% | 2021 |
| 35, Green Tiles Lane198 m away | 80 m² | 150 m² | +70 m² +88% | 2024 |
| Birchlea, Denham Green Lane284 m away | 130 m² | 200 m² | +70 m² +54% | 2023 |
| 9, Pollard Avenue86 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.
| 132 m² |
| 200 m² |
| +68 m² +52% |
| 2023 |
| 6, The Finches, Patrons Way West408 m away | 76 m² | 135 m² | +59 m² +78% | 2021 |
|---|
| 76, Moorfield Road458 m away | 116 m² | 174 m² | +58 m² +50% | 2024 |
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| 19, Denham Green Close497 m away | 91 m² | 147 m² | +56 m² +62% | 2022 |
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| 9, Ashcroft Drive248 m away | 71 m² | 127 m² | +56 m² +79% | 2014 |
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| 37, Green Tiles Lane198 m away | 64 m² | 119 m² | +55 m² +86% | 2025 |
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| 39, Ashcroft Drive285 m away | 89 m² | 140 m² | +51 m² +57% | 2010 |
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| 43, Green Tiles Lane126 m away | 62 m² | 108 m² | +46 m² +74% | 2022 |
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| 36, Penn Drive176 m away | 45 m² | 91 m² | +46 m² +102% | 2021 |
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| 6, Green Tiles284 m away | 40 m² | 86 m² | +46 m² +115% | 2015 |
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| 5, The Finches, Patrons Way West408 m away | 76 m² | 121 m² | +45 m² +59% | 2020 |
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| 25, Denham Green Close497 m away | 88 m² | 132 m² | +44 m² +50% | 2019 |
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| 4, Queen Mothers Drive157 m away | 96 m² | 139 m² | +43 m² +45% | 2022 |
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| 6, Bowyer Crescent159 m away | 116 m² | 157 m² | +41 m² +35% | 2024 |
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| 10, The Finches, Patrons Way West408 m away | 76 m² | 115 m² | +39 m² +51% | 2022 |
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| 9, The Finches, Patrons Way West408 m away | 76 m² | 115 m² | +39 m² +51% | 2022 |
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| 8, The Finches, Patrons Way West408 m away | 76 m² | 115 m² | +39 m² +51% | 2022 |
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| 1, The Finches, Patrons Way West408 m away | 76 m² | 115 m² | +39 m² +51% | 2022 |
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| 7, The Finches, Patrons Way West408 m away | 76 m² | 115 m² | +39 m² +51% | 2022 |
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| 2, The Finches, Patrons Way West408 m away | 76 m² | 115 m² | +39 m² +51% | 2022 |
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| 4, The Finches, Patrons Way West408 m away | 76 m² | 115 m² | +39 m² +51% | 2022 |
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| 21, Woodhurst Drive378 m away | 74 m² | 110 m² | +36 m² +49% | 2014 |
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| 5, Bowyer Crescent159 m away | 87 m² | 122 m² | +35 m² +40% | 2023 |
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| 14, Bowyer Crescent159 m away | 111 m² | 144 m² | +33 m² +30% | 2015 |
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| 43, Denham Green Close497 m away | 108 m² | 140 m² | +32 m² +30% | 2022 |
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| 3, Queen Mothers Drive157 m away | 109 m² | 139 m² | +30 m² +28% | 2022 |
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| 67, Savay Close599 m away | 64 m² | 92 m² | +28 m² +44% | 2014 |
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| 1, Bowyer Crescent159 m away | 111 m² | 138 m² | +27 m² +24% | 2025 |
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| 47, Savay Close599 m away | 91 m² | 118 m² | +27 m² +30% | 2020 |
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| 66, Green Tiles Lane126 m away | 112 m² | 138 m² | +26 m² +23% | 2014 |
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| 7, Penn Drive176 m away | 159 m² | 184 m² | +25 m² +16% | 2018 |
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| 10, Sheepcote Gardens229 m away | 118 m² | 142 m² | +24 m² +20% | 2026 |
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| 97, Tilehouse Way371 m away | 126 m² | 149 m² | +23 m² +18% | 2025 |
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| 9, Edinburgh Gate124 m away | 116 m² | 139 m² | +23 m² +20% | 2022 |
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| Belmont, Denham Green Lane284 m away | 94 m² | 117 m² | +23 m² +24% | 2019 |
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| 2a, Penn Drive176 m away | 111 m² | 134 m² | +23 m² +21% | 2016 |
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| 1, Sheepcote Gardens229 m away | 52 m² | 74 m² | +22 m² +42% | 2022 |
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| 23, Green Tiles284 m away | 81 m² | 99 m² | +18 m² +22% | 2023 |
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| 7, St Marys Road138 m away | 115 m² | 133 m² | +18 m² +16% | 2020 |
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