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 TW15 1PA
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 |
|---|---|---|---|---|
| 523, Staines Road West979 m away | 165 m² | 311 m² | +146 m² +88% | 2025 |
| 115, School Road996 m away | 87 m² | 214 m² | +127 m² +146% | 2024 |
| 5, The Drive828 m away | 96 m² | 180 m² | +84 m² +88% | 2021 |
| 2, Windmill Road981 m away | 90 m² | 173 m² | +83 m² +92% | 2022 |
| 32, Hughes Road797 m away | 68 m² | 147 m² | +79 m² +116% | 2024 |
| 1, Elgin Avenue984 m away | 110 m² | 179 m² | +69 m² +63% | 2026 |
| 11, Conway Drive846 m away | 76 m² | 145 m² | +69 m² +91% | 2023 |
| 415, Staines Road West735 m away | 92 m² | 157 m² | +65 m² +71% | 2021 |
| 13, Chertsey Road714 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.
| 80 m² |
| 141 m² |
| +61 m² +76% |
| 2019 |
| 105, School Road996 m away | 63 m² | 124 m² | +61 m² +97% | 2017 |
|---|
| 24, Cambridge Road536 m away | 52 m² | 112 m² | +60 m² +115% | 2025 |
|---|
| 27, The Drive828 m away | 104 m² | 164 m² | +60 m² +58% | 2013 |
|---|
| 27, Ashford Road615 m away | 85 m² | 143 m² | +58 m² +68% | 2022 |
|---|
| 23, The Drive828 m away | 64 m² | 121 m² | +57 m² +89% | 2021 |
|---|
| 95, School Road996 m away | 74 m² | 129 m² | +55 m² +74% | 2016 |
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| 129, Walnut Tree Road489 m away | 65 m² | 118 m² | +53 m² +82% | 2015 |
|---|
| 11, Cecil Road794 m away | 164 m² | 210 m² | +46 m² +28% | 2014 |
|---|
| 37, Birch Grove994 m away | 64 m² | 108 m² | +44 m² +69% | 2025 |
|---|
| 11, Hogarth Avenue980 m away | 145 m² | 188 m² | +43 m² +30% | 2021 |
|---|
| 20, Selby Road856 m away | 129 m² | 170 m² | +41 m² +32% | 2023 |
|---|
| 13, Hetherington Road545 m away | 90 m² | 131 m² | +41 m² +46% | 2015 |
|---|
| 10, Cheyne Road926 m away | 68 m² | 108 m² | +40 m² +59% | 2023 |
|---|
| 62, Hogarth Avenue1000 m away | 75 m² | 115 m² | +40 m² +53% | 2020 |
|---|
| 400, Staines Road West656 m away | 105 m² | 145 m² | +40 m² +38% | 2017 |
|---|
| 52b, Napier Road881 m away | 84 m² | 122 m² | +38 m² +45% | 2021 |
|---|
| 25, Birch Grove994 m away | 144 m² | 181 m² | +37 m² +26% | 2020 |
|---|
| 143, Charlton Road862 m away | 81 m² | 116 m² | +35 m² +43% | 2021 |
|---|
| 35, Maxwell Road768 m away | 79 m² | 114 m² | +35 m² +44% | 2015 |
|---|
| 41, Hogarth Avenue980 m away | 88 m² | 121 m² | +33 m² +38% | 2025 |
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| 1, Crosswell Close677 m away | 85 m² | 118 m² | +33 m² +39% | 2016 |
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| 22, Norman Road789 m away | 79 m² | 111 m² | +32 m² +41% | 2025 |
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| 11, Hetherington Road545 m away | 86 m² | 118 m² | +32 m² +37% | 2016 |
|---|
| 19, Selby Road827 m away | 89 m² | 120 m² | +31 m² +35% | 2024 |
|---|
| 5a, Hughes Road797 m away | 112 m² | 140 m² | +28 m² +25% | 2026 |
|---|
| 68, School Road992 m away | 74 m² | 102 m² | +28 m² +38% | 2026 |
|---|
| 44, School Road992 m away | 96 m² | 124 m² | +28 m² +29% | 2024 |
|---|
| 6, Maxwell Road787 m away | 72 m² | 100 m² | +28 m² +39% | 2020 |
|---|
| 24, Almond Close705 m away | 85 m² | 113 m² | +28 m² +33% | 2016 |
|---|
| 69, Elgin Avenue929 m away | 85 m² | 113 m² | +28 m² +33% | 2016 |
|---|
| 24, Norman Road789 m away | 66 m² | 94 m² | +28 m² +42% | 2015 |
|---|
| 7, Birch Grove994 m away | 86 m² | 113 m² | +27 m² +31% | 2023 |
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| 20, Napier Road881 m away | 61 m² | 88 m² | +27 m² +44% | 2022 |
|---|
| 4, Spelthorne Lane415 m away | 69 m² | 96 m² | +27 m² +39% | 2016 |
|---|
| 11, Birch Grove994 m away | 65 m² | 92 m² | +27 m² +42% | 2015 |
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| 13, Lodge Way627 m away | 63 m² | 89 m² | +26 m² +41% | 2019 |
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| 17, Chertsey Road714 m away | 82 m² | 107 m² | +25 m² +30% | 2026 |
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| 20, Hughes Road797 m away | 82 m² | 106 m² | +24 m² +29% | 2024 |
|---|
| 55, Elgin Avenue929 m away | 92 m² | 116 m² | +24 m² +26% | 2023 |
|---|
| 126, International Way842 m away | 128 m² | 151 m² | +23 m² +18% | 2025 |
|---|
| 473, Staines Road West979 m away | 36 m² | 59 m² | +23 m² +64% | 2010 |
|---|
| Flat 4, 9, Cedar Way873 m away | 98 m² | 120 m² | +22 m² +22% | 2023 |
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| 22, Cecil Road794 m away | 66 m² | 88 m² | +22 m² +33% | 2022 |
|---|
| 79, Alexandra Road998 m away | 77 m² | 99 m² | +22 m² +29% | 2021 |
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| 9, Ashdene Close538 m away | 51 m² | 73 m² | +22 m² +43% | 2020 |
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| 3, Alexandra Road998 m away | 67 m² | 89 m² | +22 m² +33% | 2020 |
|---|
| 12, Blackthorne Court, Staines Road West603 m away | 54 m² | 76 m² | +22 m² +41% | 2019 |
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| 7, Selby Road827 m away | 78 m² | 99 m² | +21 m² +27% | 2026 |
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| 53, Hogarth Avenue980 m away | 67 m² | 88 m² | +21 m² +31% | 2024 |
|---|
| 62, Spelthorne Lane256 m away | 64 m² | 85 m² | +21 m² +33% | 2022 |
|---|
| 7a, Hughes Road797 m away | 112 m² | 133 m² | +21 m² +19% | 2020 |
|---|
| 305, Staines Road West708 m away | 133 m² | 154 m² | +21 m² +16% | 2019 |
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| 70, Glenfield Road927 m away | 107 m² | 127 m² | +20 m² +19% | 2021 |
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| 91, Hetherington Road675 m away | 82 m² | 102 m² | +20 m² +24% | 2014 |
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| 149, Charlton Road862 m away | 117 m² | 136 m² | +19 m² +16% | 2026 |
|---|
| 19, Elgin Avenue984 m away | 74 m² | 93 m² | +19 m² +26% | 2026 |
|---|
| 11, Littleton Road544 m away | 94 m² | 113 m² | +19 m² +20% | 2024 |
|---|
| 48, Hogarth Avenue1000 m away | 76 m² | 95 m² | +19 m² +25% | 2023 |
|---|
| 111, International Way718 m away | 48 m² | 66 m² | +18 m² +38% | 2025 |
|---|
| 15, Elgin Avenue984 m away | 79 m² | 97 m² | +18 m² +23% | 2025 |
|---|
| 56, Littleton Road440 m away | 56 m² | 73 m² | +17 m² +30% | 2024 |
|---|
| 22, Warren Road953 m away | 55 m² | 72 m² | +17 m² +31% | 2016 |
|---|
| 6, Conway Drive846 m away | 85 m² | 101 m² | +16 m² +19% | 2025 |
|---|
| 14, Bridge Gardens549 m away | 78 m² | 94 m² | +16 m² +21% | 2023 |
|---|
| 4, Waterside Close145 m away | 74 m² | 89 m² | +15 m² +20% | 2020 |
|---|
| 241, Charlton Road253 m away | 68 m² | 83 m² | +15 m² +22% | 2016 |
|---|
| 46, Napier Road881 m away | 98 m² | 113 m² | +15 m² +15% | 2016 |
|---|
| 9, Birch Grove994 m away | 90 m² | 105 m² | +15 m² +17% | 2015 |
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