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 N20 8NX
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 |
|---|---|---|---|---|
| Woodlands, Pine Grove367 m away | 594 m² | 998 m² | +404 m² +68% | 2024 |
| 1, The Pastures531 m away | 218 m² | 512 m² | +294 m² +135% | 2014 |
| 18, Harmsworth Way221 m away | 388 m² | 660 m² | +272 m² +70% | 2020 |
| 9, The Pastures531 m away | 179 m² | 442 m² | +263 m² +147% | 2016 |
| 101, Greenway341 m away | 172 m² | 408 m² | +236 m² +137% | 2026 |
| 31, Harmsworth Way176 m away | 167 m² | 322 m² | +155 m² +93% | 2015 |
| 7, Framfield Close908 m away | 146 m² | 294 m² | +148 m² +101% | 2024 |
| 65, Southway617 m away | 101 m² | 245 m² | +144 m² +143% | 2026 |
| 43, Greenway646 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.
| 295 m² |
| +140 m² +90% |
| 2026 |
| 56, Greenway373 m away | 164 m² | 304 m² | +140 m² +85% | 2023 |
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| 5, Arlington861 m away | 149 m² | 283 m² | +134 m² +90% | 2019 |
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| 16, Lynton Mead673 m away | 109 m² | 240 m² | +131 m² +120% | 2025 |
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| 47, Pine Grove319 m away | 253 m² | 381 m² | +128 m² +51% | 2024 |
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| 27, Southway611 m away | 108 m² | 236 m² | +128 m² +119% | 2022 |
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| 56, Northiam947 m away | 161 m² | 285 m² | +124 m² +77% | 2026 |
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| 20, Harmsworth Way221 m away | 333 m² | 456 m² | +123 m² +37% | 2026 |
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| 12, Greenway745 m away | 104 m² | 227 m² | +123 m² +118% | 2024 |
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| 2, Willow End360 m away | 107 m² | 229 m² | +122 m² +114% | 2024 |
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| 56, Southway571 m away | 118 m² | 234 m² | +116 m² +98% | 2023 |
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| 4, Hill Crescent780 m away | 249 m² | 364 m² | +115 m² +46% | 2024 |
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| 84, Laurel Way647 m away | 88 m² | 202 m² | +114 m² +130% | 2026 |
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| 15, Rowben Close831 m away | 120 m² | 234 m² | +114 m² +95% | 2024 |
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| 14, Oaklands Road851 m away | 190 m² | 296 m² | +106 m² +56% | 2010 |
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| 54, Longland Drive889 m away | 112 m² | 216 m² | +104 m² +93% | 2020 |
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| 12, Northiam954 m away | 126 m² | 225 m² | +99 m² +79% | 2019 |
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| 1, Greenway834 m away | 136 m² | 232 m² | +96 m² +71% | 2020 |
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| 37, Greenway Close517 m away | 105 m² | 199 m² | +94 m² +90% | 2014 |
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| 15, Chiddingfold835 m away | 158 m² | 251 m² | +93 m² +59% | 2016 |
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| 13, Coppice Walk574 m away | 124 m² | 216 m² | +92 m² +74% | 2023 |
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| 21, Harmsworth Way176 m away | 280 m² | 370 m² | +90 m² +32% | 2025 |
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| Spindlewood, 62, Totteridge Village658 m away | 181 m² | 270 m² | +89 m² +49% | 2020 |
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| 49, Longland Drive932 m away | 113 m² | 196 m² | +83 m² +73% | 2022 |
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| 21, West Hill Way766 m away | 119 m² | 202 m² | +83 m² +70% | 2019 |
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| 17, Totteridge Village278 m away | 322 m² | 404 m² | +82 m² +25% | 2022 |
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| 58, Southway571 m away | 103 m² | 185 m² | +82 m² +80% | 2021 |
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| 70, Lynton Mead673 m away | 98 m² | 178 m² | +80 m² +82% | 2024 |
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| 130, Longland Drive882 m away | 95 m² | 175 m² | +80 m² +84% | 2015 |
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| 53, Laurel Way862 m away | 110 m² | 190 m² | +80 m² +73% | 2014 |
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| 26, Southway571 m away | 105 m² | 185 m² | +80 m² +76% | 2011 |
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| 35, Greenway646 m away | 120 m² | 198 m² | +78 m² +65% | 2022 |
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| 92, Longland Drive882 m away | 108 m² | 186 m² | +78 m² +72% | 2022 |
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| 12, Hill Crescent780 m away | 137 m² | 214 m² | +77 m² +56% | 2025 |
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| 18, Greenway745 m away | 100 m² | 175 m² | +75 m² +75% | 2016 |
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| 59, Oak Tree Drive916 m away | 106 m² | 181 m² | +75 m² +71% | 2015 |
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| 12, Oaklands Road849 m away | 189 m² | 258 m² | +69 m² +37% | 2018 |
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| 96, Totteridge Lane930 m away | 122 m² | 190 m² | +68 m² +56% | 2021 |
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| 2, Oak Tree Drive951 m away | 110 m² | 178 m² | +68 m² +62% | 2019 |
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| 51, Northiam1000 m away | 161 m² | 226 m² | +65 m² +40% | 2025 |
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| 16, Harmsworth Way221 m away | 238 m² | 303 m² | +65 m² +27% | 2014 |
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| 1, West Hill Way766 m away | 129 m² | 193 m² | +64 m² +50% | 2024 |
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| 33, Ventnor Drive787 m away | 135 m² | 198 m² | +63 m² +47% | 2021 |
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| 77, Lynton Mead709 m away | 96 m² | 159 m² | +63 m² +66% | 2015 |
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| 88, Longland Drive882 m away | 125 m² | 187 m² | +62 m² +50% | 2022 |
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| 81, Lynton Mead709 m away | 107 m² | 168 m² | +61 m² +57% | 2026 |
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| 55, Southway611 m away | 136 m² | 195 m² | +59 m² +43% | 2017 |
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| 63, Northiam1000 m away | 156 m² | 213 m² | +57 m² +37% | 2014 |
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| 18, Coppice Walk574 m away | 121 m² | 176 m² | +55 m² +45% | 2024 |
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| 38, Oak Tree Drive951 m away | 113 m² | 168 m² | +55 m² +49% | 2013 |
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| 49, Northiam1000 m away | 214 m² | 268 m² | +54 m² +25% | 2020 |
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| 20, Oaklands Road851 m away | 226 m² | 278 m² | +52 m² +23% | 2026 |
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| 62, Ventnor Drive818 m away | 98 m² | 150 m² | +52 m² +53% | 2021 |
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| 5, The Grange921 m away | 143 m² | 195 m² | +52 m² +36% | 2020 |
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| 42, West Hill Way750 m away | 141 m² | 192 m² | +51 m² +36% | 2019 |
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| 58, Northiam947 m away | 118 m² | 169 m² | +51 m² +43% | 2014 |
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| 116, Longland Drive882 m away | 161 m² | 211 m² | +50 m² +31% | 2024 |
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| 61, Longland Drive932 m away | 126 m² | 176 m² | +50 m² +40% | 2015 |
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| 44, Laurel Way801 m away | 125 m² | 175 m² | +50 m² +40% | 2010 |
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| 123, Longland Drive922 m away | 120 m² | 169 m² | +49 m² +41% | 2016 |
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| 17, The Pastures531 m away | 240 m² | 288 m² | +48 m² +20% | 2015 |
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| 48, Pine Grove319 m away | 173 m² | 221 m² | +48 m² +28% | 2014 |
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| 24, Longland Drive889 m away | 173 m² | 220 m² | +47 m² +27% | 2021 |
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| 3, Arlington861 m away | 206 m² | 252 m² | +46 m² +22% | 2024 |
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| 47, Oak Tree Drive916 m away | 116 m² | 161 m² | +45 m² +39% | 2024 |
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| 96, Totteridge Village807 m away | 118 m² | 163 m² | +45 m² +38% | 2022 |
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| 3, Shortgate971 m away | 131 m² | 175 m² | +44 m² +34% | 2026 |
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| 101, Longland Drive922 m away | 152 m² | 192 m² | +40 m² +26% | 2026 |
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| 109, Longland Drive922 m away | 168 m² | 207 m² | +39 m² +23% | 2026 |
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| 1, Arlington861 m away | 238 m² | 277 m² | +39 m² +16% | 2015 |
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| 26, West Hill Way876 m away | 120 m² | 158 m² | +38 m² +32% | 2025 |
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| 77, Totteridge Lane818 m away | 114 m² | 151 m² | +37 m² +32% | 2015 |
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| 24a, Greenway745 m away | 127 m² | 160 m² | +33 m² +26% | 2021 |
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| 40, Greenway Close479 m away | 117 m² | 149 m² | +32 m² +27% | 2021 |
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| 88, Laurel Way647 m away | 153 m² | 185 m² | +32 m² +21% | 2013 |
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| 22, Ventnor Drive824 m away | 106 m² | 136 m² | +30 m² +28% | 2024 |
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| 8, Ventnor Drive824 m away | 137 m² | 166 m² | +29 m² +21% | 2026 |
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| 3, Belmont Close747 m away | 158 m² | 186 m² | +28 m² +18% | 2023 |
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| 56, Ventnor Drive818 m away | 141 m² | 169 m² | +28 m² +20% | 2014 |
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| 67, Lynton Mead709 m away | 100 m² | 127 m² | +27 m² +27% | 2021 |
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| 28, West Hill Way876 m away | 134 m² | 161 m² | +27 m² +20% | 2015 |
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| 75, Southover834 m away | 162 m² | 188 m² | +26 m² +16% | 2022 |
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| 52, Greenway373 m away | 154 m² | 179 m² | +25 m² +16% | 2015 |
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| 101, Laurel Way681 m away | 158 m² | 182 m² | +24 m² +15% | 2022 |
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| 4, Laurel Way993 m away | 121 m² | 140 m² | +19 m² +16% | 2026 |
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