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 TW14 0LG
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 |
|---|---|---|---|---|
| 121, Hounslow Road697 m away | 85 m² | 189 m² | +104 m² +122% | 2025 |
| The Lodge336 m away | 92 m² | 195 m² | +103 m² +112% | 2016 |
| 11, Clymping Dene773 m away | 135 m² | 221 m² | +86 m² +64% | 2023 |
| 62, Viola Avenue848 m away | 68 m² | 150 m² | +82 m² +121% | 2023 |
| 117, Hounslow Road697 m away | 61 m² | 134 m² | +73 m² +120% | 2019 |
| 9, Rosslyn Avenue423 m away | 77 m² | 146 m² | +69 m² +90% | 2026 |
| 186, Hounslow Road626 m away | 72 m² | 138 m² | +66 m² +92% | 2020 |
| 92, Shaftesbury Avenue429 m away | 71 m² | 134 m² | +63 m² +89% | 2024 |
| 37, The Drive966 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.
| 71 m² |
| 122 m² |
| +51 m² +72% |
| 2025 |
| 107, Tachbrook Road927 m away | 189 m² | 239 m² | +50 m² +26% | 2023 |
|---|
| 7, Buckingham Avenue532 m away | 50 m² | 100 m² | +50 m² +100% | 2020 |
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| 38, Helen Avenue777 m away | 99 m² | 144 m² | +45 m² +45% | 2021 |
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| 94, Fruen Road946 m away | 80 m² | 124 m² | +44 m² +55% | 2021 |
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| 148a, Staines Road254 m away | 33 m² | 77 m² | +44 m² +133% | 2019 |
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| 72, Shaftesbury Avenue631 m away | 65 m² | 108 m² | +43 m² +66% | 2025 |
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| 56, Buckingham Avenue522 m away | 89 m² | 131 m² | +42 m² +47% | 2020 |
|---|
| 41, Cassiobury Avenue865 m away | 85 m² | 125 m² | +40 m² +47% | 2023 |
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| 79, Shaftesbury Avenue504 m away | 89 m² | 128 m² | +39 m² +44% | 2022 |
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| 154, Staines Road254 m away | 84 m² | 121 m² | +37 m² +44% | 2025 |
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| 47, Tachbrook Road927 m away | 78 m² | 114 m² | +36 m² +46% | 2026 |
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| 17, Buckingham Avenue532 m away | 75 m² | 111 m² | +36 m² +48% | 2025 |
|---|
| 133, Harlington Road West458 m away | 69 m² | 104 m² | +35 m² +51% | 2026 |
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| 28, Cassiobury Avenue900 m away | 90 m² | 125 m² | +35 m² +39% | 2013 |
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| 28, Rosslyn Avenue416 m away | 72 m² | 106 m² | +34 m² +47% | 2025 |
|---|
| 7, Tachbrook Road927 m away | 95 m² | 129 m² | +34 m² +36% | 2023 |
|---|
| 85, Burns Avenue488 m away | 82 m² | 116 m² | +34 m² +41% | 2021 |
|---|
| 1, Clymping Dene773 m away | 120 m² | 154 m² | +34 m² +28% | 2016 |
|---|
| 45, Harlington Road West695 m away | 94 m² | 127 m² | +33 m² +35% | 2020 |
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| 149, Field Road631 m away | 55 m² | 88 m² | +33 m² +60% | 2014 |
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| 54, Kingston Avenue997 m away | 84 m² | 116 m² | +32 m² +38% | 2023 |
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| 87, Staines Road336 m away | 89 m² | 120 m² | +31 m² +35% | 2021 |
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| 42, Helen Avenue777 m away | 80 m² | 110 m² | +30 m² +38% | 2015 |
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| 31, Beeston Way763 m away | 46 m² | 75 m² | +29 m² +63% | 2021 |
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| 33, Gladstone Avenue598 m away | 70 m² | 99 m² | +29 m² +41% | 2020 |
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| 55, Pentelow Gardens444 m away | 69 m² | 97 m² | +28 m² +41% | 2021 |
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| 127a, Harlington Road West458 m away | 41 m² | 69 m² | +28 m² +68% | 2019 |
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| 83, Harlington Road West458 m away | 88 m² | 115 m² | +27 m² +31% | 2014 |
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| 51, Pentelow Gardens444 m away | 95 m² | 121 m² | +26 m² +27% | 2026 |
|---|
| 3, Byward Avenue701 m away | 70 m² | 96 m² | +26 m² +37% | 2026 |
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| 9, Ruskin Avenue693 m away | 80 m² | 106 m² | +26 m² +33% | 2024 |
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| 35, Pentelow Gardens444 m away | 108 m² | 133 m² | +25 m² +23% | 2025 |
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| 93, Hounslow Road697 m away | 40 m² | 65 m² | +25 m² +63% | 2020 |
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| 113, Staines Road336 m away | 33 m² | 58 m² | +25 m² +76% | 2017 |
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| 73, Gladstone Avenue598 m away | 70 m² | 94 m² | +24 m² +34% | 2025 |
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| 34, Buckingham Avenue522 m away | 86 m² | 110 m² | +24 m² +28% | 2021 |
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| 61, Staines Road336 m away | 100 m² | 124 m² | +24 m² +24% | 2014 |
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| Manama, Walsham Road765 m away | 88 m² | 111 m² | +23 m² +26% | 2023 |
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| 22, The Drive988 m away | 49 m² | 72 m² | +23 m² +47% | 2021 |
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| 8, Longford Avenue943 m away | 70 m² | 93 m² | +23 m² +33% | 2020 |
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| 98, Fruen Road946 m away | 46 m² | 69 m² | +23 m² +50% | 2015 |
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| 9, Buckingham Avenue532 m away | 93 m² | 115 m² | +22 m² +24% | 2022 |
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| 116, Field Road673 m away | 61 m² | 83 m² | +22 m² +36% | 2022 |
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| 24, Clive Road328 m away | 92 m² | 114 m² | +22 m² +24% | 2018 |
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| 49, Pentelow Gardens444 m away | 101 m² | 123 m² | +22 m² +22% | 2013 |
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| 75, Tachbrook Road927 m away | 87 m² | 109 m² | +22 m² +25% | 2012 |
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| 3, Cassiobury Avenue865 m away | 63 m² | 84 m² | +21 m² +33% | 2026 |
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| 137, Hounslow Road622 m away | 77 m² | 98 m² | +21 m² +27% | 2024 |
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| 69, Viola Avenue931 m away | 97 m² | 118 m² | +21 m² +22% | 2015 |
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| 71, Harlington Road West458 m away | 114 m² | 134 m² | +20 m² +18% | 2026 |
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| 9, Kingston Avenue930 m away | 44 m² | 64 m² | +20 m² +45% | 2023 |
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| 70, Tachbrook Road933 m away | 91 m² | 111 m² | +20 m² +22% | 2021 |
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| 55, Carlton Avenue876 m away | 83 m² | 103 m² | +20 m² +24% | 2019 |
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| 132, Field Road673 m away | 41 m² | 61 m² | +20 m² +49% | 2015 |
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| 251a, Staines Road472 m away | 75 m² | 95 m² | +20 m² +27% | 2012 |
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| 61, Shaftesbury Avenue691 m away | 84 m² | 103 m² | +19 m² +23% | 2026 |
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| 51, Tachbrook Road927 m away | 76 m² | 95 m² | +19 m² +25% | 2025 |
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| 50, Ruskin Avenue693 m away | 74 m² | 93 m² | +19 m² +26% | 2023 |
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| 53, Ruskin Avenue693 m away | 81 m² | 100 m² | +19 m² +23% | 2022 |
|---|
| 57, Lansbury Avenue428 m away | 70 m² | 89 m² | +19 m² +27% | 2021 |
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| 51, Helen Avenue751 m away | 84 m² | 102 m² | +18 m² +21% | 2017 |
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| 93, Harlington Road West458 m away | 103 m² | 119 m² | +16 m² +16% | 2026 |
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| 31, Kingston Avenue930 m away | 63 m² | 79 m² | +16 m² +25% | 2025 |
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| 182, Hounslow Road626 m away | 102 m² | 118 m² | +16 m² +16% | 2023 |
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| 27, Shaftesbury Avenue691 m away | 79 m² | 95 m² | +16 m² +20% | 2023 |
|---|
| 48, Gladstone Avenue566 m away | 67 m² | 83 m² | +16 m² +24% | 2014 |
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| 107, Fruen Road844 m away | 95 m² | 110 m² | +15 m² +16% | 2021 |
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| Flat 2, Carlton House, 413 - 419, Staines Road999 m away | 40 m² | 55 m² | +15 m² +38% | 2020 |
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| 1, Byward Avenue701 m away | 65 m² | 80 m² | +15 m² +23% | 2019 |
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