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 E11 3RA
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 |
|---|---|---|---|---|
| 12, The Warren Drive756 m away | 216 m² | 506 m² | +290 m² +134% | 2021 |
| 22, The Warren Drive756 m away | 148 m² | 355 m² | +207 m² +140% | 2026 |
| 52, Aldersbrook Road555 m away | 230 m² | 390 m² | +160 m² +70% | 2022 |
| 16, St Marys Avenue859 m away | 167 m² | 284 m² | +117 m² +70% | 2019 |
| 200, Empress Avenue999 m away | 82 m² | 181 m² | +99 m² +121% | 2013 |
| 2, The Warren Drive756 m away | 278 m² | 375 m² | +97 m² +35% | 2024 |
| 18, Wanstead Park Avenue925 m away | 157 m² | 244 m² | +87 m² +55% | 2025 |
| 55, Langley Drive876 m away | 109 m² | 192 m² | +83 m² +76% | 2015 |
| 60, Overton Drive683 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.
| 192 m² |
| 274 m² |
| +82 m² +43% |
| 2024 |
| 39, Overton Drive762 m away | 85 m² | 166 m² | +81 m² +95% | 2023 |
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| 11, Tennyson Avenue787 m away | 156 m² | 237 m² | +81 m² +52% | 2022 |
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| 1, The Warren Drive756 m away | 122 m² | 203 m² | +81 m² +66% | 2016 |
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| 15, Warren Road971 m away | 103 m² | 182 m² | +79 m² +77% | 2017 |
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| 13, Warren Road971 m away | 133 m² | 206 m² | +73 m² +55% | 2021 |
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| 8, Park Road189 m away | 96 m² | 169 m² | +73 m² +76% | 2019 |
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| 18, Belgrave Road557 m away | 169 m² | 239 m² | +70 m² +41% | 2024 |
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| 26, Warren Road981 m away | 123 m² | 188 m² | +65 m² +53% | 2026 |
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| 55, Warren Road971 m away | 116 m² | 181 m² | +65 m² +56% | 2021 |
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| 23, Northumberland Avenue416 m away | 159 m² | 220 m² | +61 m² +38% | 2016 |
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| 36, Woodcote Road943 m away | 110 m² | 171 m² | +61 m² +55% | 2014 |
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| 10, Richmond Way617 m away | 129 m² | 189 m² | +60 m² +47% | 2025 |
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| 18, Tennyson Avenue787 m away | 171 m² | 231 m² | +60 m² +35% | 2025 |
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| 3, Lake House Road583 m away | 144 m² | 204 m² | +60 m² +42% | 2013 |
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| 10, Lake House Road583 m away | 141 m² | 200 m² | +59 m² +42% | 2025 |
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| 2b, Harpenden Road292 m away | 83 m² | 140 m² | +57 m² +69% | 2024 |
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| 28, Northumberland Avenue416 m away | 254 m² | 311 m² | +57 m² +22% | 2024 |
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| 71, Herongate Road538 m away | 105 m² | 162 m² | +57 m² +54% | 2015 |
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| 108, Belgrave Road674 m away | 138 m² | 194 m² | +56 m² +41% | 2026 |
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| 18, Blake Hall Road892 m away | 115 m² | 171 m² | +56 m² +49% | 2022 |
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| 27, Redbridge Lane West995 m away | 148 m² | 204 m² | +56 m² +38% | 2022 |
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| 23, Empress Avenue716 m away | 150 m² | 205 m² | +55 m² +37% | 2021 |
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| 20, The Warren Drive756 m away | 168 m² | 222 m² | +54 m² +32% | 2024 |
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| 43, Woodlands Avenue0 m away | 131 m² | 183 m² | +52 m² +40% | 2026 |
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| 56, Harpenden Road419 m away | 118 m² | 170 m² | +52 m² +44% | 2026 |
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| 72, Belgrave Road674 m away | 111 m² | 163 m² | +52 m² +47% | 2025 |
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| 39, Woodcote Road969 m away | 103 m² | 153 m² | +50 m² +49% | 2021 |
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| 27, Belgrave Road629 m away | 120 m² | 170 m² | +50 m² +42% | 2014 |
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| 26, Westmorland Close875 m away | 76 m² | 125 m² | +49 m² +64% | 2025 |
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| 12, Lake House Road583 m away | 142 m² | 191 m² | +49 m² +35% | 2018 |
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| 7, Langley Drive876 m away | 150 m² | 197 m² | +47 m² +31% | 2025 |
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| 4, Overton Drive683 m away | 180 m² | 227 m² | +47 m² +26% | 2023 |
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| 7, Woodcote Road969 m away | 116 m² | 163 m² | +47 m² +41% | 2020 |
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| 17, Langley Crescent913 m away | 139 m² | 186 m² | +47 m² +34% | 2015 |
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| 22, Blake Hall Road892 m away | 125 m² | 172 m² | +47 m² +38% | 2012 |
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| 51, Dover Road451 m away | 97 m² | 143 m² | +46 m² +47% | 2019 |
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| 30, Felstead Road886 m away | 244 m² | 289 m² | +45 m² +18% | 2018 |
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| 54, Belgrave Road629 m away | 131 m² | 175 m² | +44 m² +34% | 2019 |
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| 4, Woodcote Road943 m away | 109 m² | 152 m² | +43 m² +39% | 2025 |
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| 24, Blake Hall Crescent494 m away | 169 m² | 212 m² | +43 m² +25% | 2013 |
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| 35, Seagry Road835 m away | 145 m² | 186 m² | +41 m² +28% | 2018 |
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| 8, Selsdon Road995 m away | 77 m² | 118 m² | +41 m² +53% | 2014 |
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| 40, Draycot Road828 m away | 215 m² | 254 m² | +39 m² +18% | 2026 |
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| 1, Harpenden Road292 m away | 108 m² | 147 m² | +39 m² +36% | 2024 |
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| 66, Bushwood986 m away | 150 m² | 189 m² | +39 m² +26% | 2021 |
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| 73, Aldersbrook Road703 m away | 172 m² | 209 m² | +37 m² +22% | 2022 |
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| 92, Overton Drive697 m away | 221 m² | 257 m² | +36 m² +16% | 2024 |
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| 53, St Margarets Road641 m away | 133 m² | 169 m² | +36 m² +27% | 2021 |
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| 2, Harpenden Road292 m away | 97 m² | 133 m² | +36 m² +37% | 2016 |
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| 46, Woodcote Road943 m away | 127 m² | 162 m² | +35 m² +28% | 2022 |
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| 48, St Margarets Road659 m away | 130 m² | 164 m² | +34 m² +26% | 2023 |
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| 129, Wanstead Park Avenue702 m away | 128 m² | 162 m² | +34 m² +27% | 2012 |
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| 32, Lake House Road583 m away | 128 m² | 161 m² | +33 m² +26% | 2025 |
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| 79c, Aldersbrook Road922 m away | 53 m² | 86 m² | +33 m² +62% | 2024 |
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| 91, Bushwood986 m away | 91 m² | 124 m² | +33 m² +36% | 2021 |
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| 67, Bushwood986 m away | 152 m² | 185 m² | +33 m² +22% | 2020 |
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| Flat 4, 41, Wanstead Park Avenue903 m away | 23 m² | 56 m² | +33 m² +143% | 2016 |
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| 1, Burden Way167 m away | 82 m² | 113 m² | +31 m² +38% | 2025 |
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| 1, Windsor Road578 m away | 156 m² | 187 m² | +31 m² +20% | 2025 |
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| 101, Empress Avenue945 m away | 78 m² | 109 m² | +31 m² +40% | 2021 |
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| 64, Harpenden Road419 m away | 132 m² | 163 m² | +31 m² +23% | 2020 |
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| 122, Overton Drive804 m away | 122 m² | 150 m² | +28 m² +23% | 2024 |
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| 12, Sunderland Way914 m away | 76 m² | 104 m² | +28 m² +37% | 2023 |
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| 58, Belgrave Road629 m away | 135 m² | 162 m² | +27 m² +20% | 2026 |
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| Flat 2, 21, Blake Hall Road904 m away | 72 m² | 99 m² | +27 m² +38% | 2025 |
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| 7, Margaretting Road573 m away | 88 m² | 114 m² | +26 m² +30% | 2024 |
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| 21, Langley Drive876 m away | 141 m² | 167 m² | +26 m² +18% | 2024 |
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| 29, Park Road140 m away | 121 m² | 147 m² | +26 m² +21% | 2023 |
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| 36, Warren Road981 m away | 121 m² | 147 m² | +26 m² +21% | 2021 |
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| 28, Herongate Road601 m away | 113 m² | 139 m² | +26 m² +23% | 2017 |
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| 45, Herongate Road613 m away | 145 m² | 170 m² | +25 m² +17% | 2020 |
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| 92, Harpenden Road419 m away | 114 m² | 138 m² | +24 m² +21% | 2025 |
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| 21, The Warren Drive756 m away | 157 m² | 181 m² | +24 m² +15% | 2011 |
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| Flat 8, St. James Court, 71, Aldersbrook Road703 m away | 51 m² | 74 m² | +23 m² +45% | 2023 |
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| 29, Herongate Road613 m away | 131 m² | 152 m² | +21 m² +16% | 2021 |
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| 19, Dover Road451 m away | 97 m² | 116 m² | +19 m² +20% | 2021 |
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| 60, Aldersbrook Road555 m away | 54 m² | 73 m² | +19 m² +35% | 2010 |
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| 70a, Leybourne Road998 m away | 70 m² | 88 m² | +18 m² +26% | 2025 |
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| 1, Empress Avenue716 m away | 82 m² | 99 m² | +17 m² +21% | 2023 |
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| 6c, Selsdon Road995 m away | 54 m² | 71 m² | +17 m² +31% | 2021 |
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| 18, Aldersbrook Road374 m away | 102 m² | 118 m² | +16 m² +16% | 2015 |
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| 120, Wanstead Park Avenue732 m away | 101 m² | 117 m² | +16 m² +16% | 2012 |
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