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 CM3 4RL
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 |
|---|---|---|---|---|
| 11, Hay Green822 m away | 166 m² | 352 m² | +186 m² +112% | 2026 |
| Southways, Copt Hill720 m away | 180 m² | 357 m² | +177 m² +98% | 2015 |
| Heronsfield, Copt Hill720 m away | 426 m² | 602 m² | +176 m² +41% | 2016 |
| 8, Runsell Lane814 m away | 258 m² | 432 m² | +174 m² +67% | 2021 |
| 12a, Hyde Lane396 m away | 169 m² | 314 m² | +145 m² +86% | 2020 |
| 24, Main Road981 m away | 123 m² | 267 m² | +144 m² +117% | 2020 |
| 20, Hyde Lane304 m away | 286 m² | 387 m² | +101 m² +35% | 2021 |
| Barrowfield, Copt Hill720 m away | 206 m² | 305 m² | +99 m² +48% | 2022 |
| 14, Mill Lane417 m away | 94 m² | 184 m² | +90 m² +96% | 2021 |
| 40, Mill Lane176 m away | 90 m² | 174 m² | +84 m² +93% | 2023 |
| Rosebank, 72, Hopping Jacks Lane566 m away | 102 m² | 184 m² | +82 m² +80% | 2025 |
| 46, West Belvedere461 m away | 100 m² | 176 m² | +76 m² +76% | 2021 |
| 4, Belvedere Road289 m away | 78 m² | 146 m² | +68 m² +87% | 2018 |
| 86, Maldon Road123 m away | 109 m² | 173 m² | +64 m² +59% | 2014 |
| 35, Mill Lane280 m away | 59 m² | 120 m² | +61 m² +103% | 2019 |
| 69, Mill Lane176 m away | 81 m² | 140 m² | +59 m² +73% | 2020 |
| 4, The Avenue222 m away | 117 m² | 175 m² | +58 m² +50% | 2022 |
| 2, The Avenue222 m away | 68 m² | 126 m² | +58 m² +85% | 2020 |
| 40, Hyde Lane432 m away | 200 m² | 258 m² | +58 m² +29% | 2018 |
| 20, Runsell Close506 m away | 161 m² | 218 m² | +57 m² +35% | 2014 |
| 26, Danbury Vale167 m away | 101 m² | 152 m² | +51 m² +50% | 2023 |
| 33, Mill Lane280 m away | 67 m² | 109 m² | +42 m² +63% | 2014 |
| 12, Little Baddow Road902 m away | 179 m² | 221 m² | +42 m² +23% | 2014 |
| 9, Runsell View387 m away | 89 m² | 126 m² | +37 m² +42% | 2025 |
| 68, Mill Lane176 m away | 140 m² | 175 m² | +35 m² +25% | 2022 |
| 15, Belvedere Close385 m away | 71 m² | 106 m² | +35 m² +49% | 2021 |
| 11, The Avenue222 m away | 110 m² | 144 m² | +34 m² +31% | 2026 |
| 42, Barley Mead491 m away | 103 m² | 137 m² | +34 m² +33% | 2023 |
| 96, Maldon Road266 m away | 58 m² | 92 m² | +34 m² +59% | 2012 |
| 28, Main Road981 m away | 73 m² | 106 m² | +33 m² +45% | 2022 |
| 22, Hyde Lane304 m away | 209 m² | 242 m² | +33 m² +16% | 2015 |
| 28, Danbury Vale167 m away | 129 m² | 156 m² | +27 m² +21% | 2015 |
| 2, Maldon Road767 m away | 91 m² | 118 m² | +27 m² +30% | 2013 |
| 22, Belvedere Road289 m away | 80 m² | 106 m² | +26 m² +33% | 2014 |
| 5, Hopping Jacks Lane587 m away | 130 m² | 153 m² | +23 m² +18% | 2017 |
| 4, Barley Mead491 m away | 100 m² | 122 m² | +22 m² +22% | 2019 |
| 15, Runsell Lane987 m away | 135 m² | 156 m² | +21 m² +16% | 2026 |
| 1, Belvedere Close385 m away | 77 m² | 96 m² | +19 m² +25% | 2013 |
| 1, Runsell Close506 m away | 70 m² | 88 m² | +18 m² +26% | 2023 |
| 37, West Belvedere461 m away | 72 m² | 90 m² | +18 m² +25% | 2013 |
| 49, Mill Lane280 m away | 79 m² | 96 m² | +17 m² +22% | 2024 |
| 57, Little Baddow Road902 m away | 83 m² | 98 m² | +15 m² +18% | 2018 |
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.