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 TW18 2HF
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 |
|---|---|---|---|---|
| 6, Riverfield Road944 m away | 178 m² | 394 m² | +216 m² +121% | 2017 |
| Paddock House, Temple Gardens301 m away | 218 m² | 413 m² | +195 m² +89% | 2024 |
| Elmhurst, Penton Hook Road675 m away | 101 m² | 251 m² | +150 m² +149% | 2022 |
| 11, Mayfield Gardens603 m away | 91 m² | 224 m² | +133 m² +146% | 2024 |
| 12, Holland Gardens727 m away | 92 m² | 225 m² | +133 m² +145% | 2018 |
| 105a, Chertsey Lane368 m away | 126 m² | 258 m² | +132 m² +105% | 2023 |
| Heathfield, St Pinnock Avenue678 m away | 114 m² | 245 m² | +131 m² +115% | 2022 |
| Accra, Temple Gardens301 m away | 202 m² | 324 m² | +122 m² +60% | 2017 |
| 78, Thames Side |
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.
| 102 m² |
| 223 m² |
| +121 m² +119% |
| 2025 |
| 139, Thames Side791 m away | 270 m² | 390 m² | +120 m² +44% | 2023 |
|---|
| Riversdale, Temple Gardens301 m away | 170 m² | 288 m² | +118 m² +69% | 2020 |
|---|
| Tanglewood, Penton Hall Drive512 m away | 96 m² | 213 m² | +117 m² +122% | 2026 |
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| The Lodge, Green Lane354 m away | 79 m² | 194 m² | +115 m² +146% | 2025 |
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| 47, Chertsey Lane950 m away | 83 m² | 197 m² | +114 m² +137% | 2025 |
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| 61, Penton Road560 m away | 98 m² | 207 m² | +109 m² +111% | 2025 |
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| 256, Chertsey Lane616 m away | 137 m² | 237 m² | +100 m² +73% | 2023 |
|---|
| 231, Laleham Road822 m away | 273 m² | 371 m² | +98 m² +36% | 2015 |
|---|
| 75a, Chertsey Lane950 m away | 81 m² | 179 m² | +98 m² +121% | 2011 |
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| Kavana, Ferry Avenue221 m away | 118 m² | 214 m² | +96 m² +81% | 2019 |
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| West Winds, Norlands Lane834 m away | 61 m² | 151 m² | +90 m² +148% | 2022 |
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| 135, Chertsey Lane135 m away | 146 m² | 228 m² | +82 m² +56% | 2022 |
|---|
| 7, Penton Road724 m away | 116 m² | 197 m² | +81 m² +70% | 2015 |
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| 208, Chertsey Lane336 m away | 93 m² | 173 m² | +80 m² +86% | 2024 |
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| Ambleside, Penton Hall Drive512 m away | 81 m² | 161 m² | +80 m² +99% | 2022 |
|---|
| 150, Laleham Road778 m away | 153 m² | 233 m² | +80 m² +52% | 2015 |
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| 6, Avondale Avenue486 m away | 73 m² | 152 m² | +79 m² +108% | 2023 |
|---|
| Lockholm, Penton Hall Drive512 m away | 87 m² | 166 m² | +79 m² +91% | 2016 |
|---|
| 65, Penton Road560 m away | 94 m² | 170 m² | +76 m² +81% | 2020 |
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| Penton Lake, Temple Gardens301 m away | 319 m² | 389 m² | +70 m² +22% | 2022 |
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| Shanklyn, Temple Gardens301 m away | 137 m² | 207 m² | +70 m² +51% | 2018 |
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| 37, Avondale Avenue455 m away | 51 m² | 118 m² | +67 m² +131% | 2016 |
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| 8, Mayfield Gardens603 m away | 84 m² | 145 m² | +61 m² +73% | 2025 |
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| 33, Wheatsheaf Lane704 m away | 87 m² | 148 m² | +61 m² +70% | 2019 |
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| 104, Laleham Road816 m away | 105 m² | 165 m² | +60 m² +57% | 2025 |
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| 12, Grosvenor Road949 m away | 90 m² | 150 m² | +60 m² +67% | 2019 |
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| 6, Greenlake Terrace777 m away | 64 m² | 124 m² | +60 m² +94% | 2016 |
|---|
| 22, Meadway Close646 m away | 83 m² | 141 m² | +58 m² +70% | 2026 |
|---|
| 25, Holland Gardens727 m away | 73 m² | 131 m² | +58 m² +79% | 2017 |
|---|
| 1, Aymer Close343 m away | 108 m² | 166 m² | +58 m² +54% | 2016 |
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| 20, Duncombe Court, Thames Side556 m away | 92 m² | 142 m² | +50 m² +54% | 2016 |
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| Weir Home, Temple Gardens301 m away | 252 m² | 302 m² | +50 m² +20% | 2014 |
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| 20, Riverside Close74 m away | 107 m² | 156 m² | +49 m² +46% | 2026 |
|---|
| 2, Redwood767 m away | 111 m² | 160 m² | +49 m² +44% | 2022 |
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| 6, Norlands Lane834 m away | 124 m² | 172 m² | +48 m² +39% | 2017 |
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| 32, Wheatsheaf Lane609 m away | 90 m² | 136 m² | +46 m² +51% | 2021 |
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| 34, Guildford Street915 m away | 69 m² | 113 m² | +44 m² +64% | 2025 |
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| 19, Penton Avenue317 m away | 96 m² | 139 m² | +43 m² +45% | 2021 |
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| 123, Thames Side555 m away | 211 m² | 254 m² | +43 m² +20% | 2019 |
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| Englewick, Penton Hook Road675 m away | 94 m² | 137 m² | +43 m² +46% | 2019 |
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| 10, Meadway642 m away | 121 m² | 163 m² | +42 m² +35% | 2026 |
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| 30, Penton Hook Road628 m away | 175 m² | 217 m² | +42 m² +24% | 2025 |
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| 35, Mayfield Gardens603 m away | 147 m² | 189 m² | +42 m² +29% | 2024 |
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| 19, Holland Gardens727 m away | 162 m² | 204 m² | +42 m² +26% | 2022 |
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| 22, Moorfields Close275 m away | 153 m² | 194 m² | +41 m² +27% | 2026 |
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| 93, Bishops Way913 m away | 71 m² | 112 m² | +41 m² +58% | 2024 |
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| 25, Carlyle Road675 m away | 114 m² | 154 m² | +40 m² +35% | 2019 |
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| 80, Wheatsheaf Lane229 m away | 80 m² | 120 m² | +40 m² +50% | 2014 |
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| 17, Grosvenor Road909 m away | 84 m² | 123 m² | +39 m² +46% | 2021 |
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| 17, Parkside Place993 m away | 105 m² | 142 m² | +37 m² +35% | 2016 |
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| Colonsay, Riverside530 m away | 212 m² | 248 m² | +36 m² +17% | 2019 |
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| Herons Rest, Riverside530 m away | 126 m² | 162 m² | +36 m² +29% | 2017 |
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| 23, Meadway Close646 m away | 84 m² | 120 m² | +36 m² +43% | 2017 |
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| 19, Penton Road724 m away | 95 m² | 130 m² | +35 m² +37% | 2022 |
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| 1, Penton Road724 m away | 115 m² | 149 m² | +34 m² +30% | 2023 |
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| 204, Chertsey Lane336 m away | 197 m² | 229 m² | +32 m² +16% | 2013 |
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| Sycamores, Ferry Avenue221 m away | 141 m² | 171 m² | +30 m² +21% | 2023 |
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| 81, Thames Side0 m away | 130 m² | 160 m² | +30 m² +23% | 2020 |
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| 116, Thames Side415 m away | 170 m² | 199 m² | +29 m² +17% | 2026 |
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| 32, Guildford Street915 m away | 86 m² | 113 m² | +27 m² +31% | 2024 |
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| 64a, Avondale Avenue385 m away | 52 m² | 79 m² | +27 m² +52% | 2023 |
|---|
| 152, Laleham Road778 m away | 150 m² | 177 m² | +27 m² +18% | 2019 |
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| The Willows, Riverside530 m away | 169 m² | 195 m² | +26 m² +15% | 2015 |
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| 43, Meadway622 m away | 74 m² | 100 m² | +26 m² +35% | 2015 |
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| 57a, Chertsey Lane950 m away | 155 m² | 180 m² | +25 m² +16% | 2014 |
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| 134, Laleham Road788 m away | 95 m² | 118 m² | +23 m² +24% | 2020 |
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| 84, Thames Side0 m away | 102 m² | 125 m² | +23 m² +23% | 2015 |
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| 9, Duncombe Court, Thames Side556 m away | 47 m² | 70 m² | +23 m² +49% | 2014 |
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| 9, Guildford Street915 m away | 81 m² | 104 m² | +23 m² +28% | 2014 |
|---|
| 14, Blackett Close635 m away | 137 m² | 159 m² | +22 m² +16% | 2026 |
|---|
| 48, Parkside Place993 m away | 78 m² | 100 m² | +22 m² +28% | 2026 |
|---|
| 132, Riverbank, Laleham Road912 m away | 68 m² | 90 m² | +22 m² +32% | 2024 |
|---|
| 23, Ruskin Road716 m away | 83 m² | 105 m² | +22 m² +27% | 2021 |
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| 18, Green Lane355 m away | 136 m² | 158 m² | +22 m² +16% | 2015 |
|---|
| 73, Penton Road560 m away | 100 m² | 121 m² | +21 m² +21% | 2025 |
|---|
| 31, Riverbank, Laleham Road775 m away | 60 m² | 81 m² | +21 m² +35% | 2023 |
|---|
| 31, Aymer Drive292 m away | 62 m² | 83 m² | +21 m² +34% | 2017 |
|---|
| 50, Avondale Avenue486 m away | 66 m² | 86 m² | +20 m² +30% | 2024 |
|---|
| 23, Aymer Drive292 m away | 64 m² | 83 m² | +19 m² +30% | 2017 |
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| 45, Meadway622 m away | 67 m² | 85 m² | +18 m² +27% | 2026 |
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| 16, Ruskin Road716 m away | 91 m² | 109 m² | +18 m² +20% | 2024 |
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| 102d, Avondale Avenue378 m away | 44 m² | 62 m² | +18 m² +41% | 2020 |
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| 7b, Riverfield Road944 m away | 63 m² | 81 m² | +18 m² +29% | 2013 |
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| 5, Wythegate, Riverside Road460 m away | 56 m² | 73 m² | +17 m² +30% | 2014 |
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| 154a, Chertsey Lane170 m away | 43 m² | 59 m² | +16 m² +37% | 2021 |
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| Flat 8, Onslow Lodge, Riverside Road460 m away | 40 m² | 56 m² | +16 m² +40% | 2019 |
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| 24, Garrick Close561 m away | 77 m² | 92 m² | +15 m² +19% | 2018 |
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| 26, Aymer Drive355 m away | 87 m² | 102 m² | +15 m² +17% | 2017 |
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| 19, Duncombe Court, Thames Side556 m away | 77 m² | 92 m² | +15 m² +19% | 2014 |
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