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 EN7 5JS
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 |
|---|---|---|---|---|
| 128, Cuffley Hill441 m away | 150 m² | 351 m² | +201 m² +134% | 2024 |
| Saxonwold, Newgatestreet Road871 m away | 98 m² | 241 m² | +143 m² +146% | 2025 |
| 1, Broadfields304 m away | 105 m² | 237 m² | +132 m² +126% | 2026 |
| 12, Poppy Walk937 m away | 250 m² | 372 m² | +122 m² +49% | 2020 |
| 203, Cuffley Hill555 m away | 78 m² | 188 m² | +110 m² +141% | 2013 |
| 45, Lulworth Avenue206 m away | 209 m² | 318 m² | +109 m² +52% | 2013 |
| 121, Cuffley Hill367 m away | 102 m² | 210 m² | +108 m² +106% | 2025 |
| 2, Woodland Way611 m away | 109 m² | 188 m² | +79 m² +72% | 2017 |
| 12, Melvyn Close683 m away | 85 m² | 164 m² | +79 m² +93% | 2013 |
| 11, Pollards Close140 m away | 138 m² | 214 m² | +76 m² +55% | 2016 |
| 41, Moorhurst Avenue410 m away | 100 m² | 163 m² | +63 m² +63% | 2013 |
| 9, Goffs Crescent157 m away | 81 m² | 135 m² | +54 m² +67% | 2023 |
| 17, Chiltern Close933 m away | 185 m² | 239 m² | +54 m² +29% | 2016 |
| 2, Broadfields304 m away | 124 m² | 177 m² | +53 m² +43% | 2021 |
| 12, Colston Crescent846 m away | 68 m² | 119 m² | +51 m² +75% | 2015 |
| 7, Greenways237 m away | 182 m² | 231 m² | +49 m² +27% | 2018 |
| 53, Millcrest Road527 m away | 68 m² | 116 m² | +48 m² +71% | 2014 |
| 3, Lulworth Avenue206 m away | 102 m² | 149 m² | +47 m² +46% | 2014 |
| 27, Goffs Crescent57 m away | 92 m² | 139 m² | +47 m² +51% | 2011 |
| 7, Orchid Close486 m away | 191 m² | 237 m² | +46 m² +24% | 2017 |
| 7, Orchard Way771 m away | 103 m² | 147 m² | +44 m² +43% | 2025 |
| 33, Goffs Crescent57 m away | 99 m² | 143 m² | +44 m² +44% | 2023 |
| 195, Cuffley Hill555 m away | 97 m² | 140 m² | +43 m² +44% | 2026 |
| 38, Cuffley Hill235 m away | 107 m² | 149 m² | +42 m² +39% | 2018 |
| 10, Chiltern Close933 m away | 72 m² | 110 m² | +38 m² +53% | 2023 |
| 20, Lulworth Avenue195 m away | 57 m² | 92 m² | +35 m² +61% | 2021 |
| White House Farm, St James Road758 m away | 32 m² | 67 m² | +35 m² +109% | 2020 |
| 30, Colston Crescent846 m away | 68 m² | 103 m² | +35 m² +51% | 2016 |
| 12, Lulworth Avenue304 m away | 89 m² | 118 m² | +29 m² +33% | 2026 |
| 8, Beehive Road556 m away | 105 m² | 134 m² | +29 m² +28% | 2025 |
| 173, Cuffley Hill367 m away | 116 m² | 142 m² | +26 m² +22% | 2026 |
| 8, Melvyn Close683 m away | 85 m² | 108 m² | +23 m² +27% | 2024 |
| 20, Beehive Road556 m away | 110 m² | 131 m² | +21 m² +19% | 2022 |
| 6, Pollards Close140 m away | 115 m² | 135 m² | +20 m² +17% | 2015 |
| 30, The Drive325 m away | 95 m² | 112 m² | +17 m² +18% | 2021 |
| 32, Jones Road0 m away | 58 m² | 75 m² | +17 m² +29% | 2017 |
| 24, Pollards Close140 m away | 96 m² | 113 m² | +17 m² +18% | 2016 |
| 15, Goffs Oak Avenue445 m away | 93 m² | 109 m² | +16 m² +17% | 2024 |
| 9, Robinson Avenue264 m away | 73 m² | 88 m² | +15 m² +21% | 2020 |
| 28a, Moorhurst Avenue441 m away | 78 m² | 93 m² | +15 m² +19% | 2015 |
| 18, Jones Road0 m away | 92 m² | 107 m² | +15 m² +16% | 2012 |
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.