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 WD7 8DE
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, Loom Lane705 m away | 348 m² | 704 m² | +356 m² +102% | 2023 |
| 34, Newlands Avenue863 m away | 284 m² | 635 m² | +351 m² +124% | 2025 |
| 36, Newlands Avenue863 m away | 313 m² | 648 m² | +335 m² +107% | 2021 |
| 28, Watford Road429 m away | 343 m² | 645 m² | +302 m² +88% | 2023 |
| 50, Newlands Avenue863 m away | 210 m² | 477 m² | +267 m² +127% | 2023 |
| 13, The Ridgeway709 m away | 180 m² | 443 m² | +263 m² +146% | 2021 |
| 2, Gills Hill Lane189 m away | 165 m² | 408 m² | +243 m² +147% | 2024 |
| 14, Letchmore Road434 m away | 203 m² | 417 m² | +214 m² +105% | 2026 |
| 19, The Ridgeway709 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.
| 173 m² |
| 387 m² |
| +214 m² +124% |
| 2017 |
| 35, Loom Lane697 m away | 367 m² | 576 m² | +209 m² +57% | 2014 |
|---|
| 41, Homefield Road603 m away | 243 m² | 416 m² | +173 m² +71% | 2026 |
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| 21, The Ridgeway709 m away | 194 m² | 360 m² | +166 m² +86% | 2012 |
|---|
| 87, Loom Lane615 m away | 155 m² | 313 m² | +158 m² +102% | 2022 |
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| 41, Aldenham Avenue520 m away | 164 m² | 314 m² | +150 m² +91% | 2023 |
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| 10, Aldenham Avenue450 m away | 191 m² | 336 m² | +145 m² +76% | 2023 |
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| 80, Loom Lane471 m away | 95 m² | 235 m² | +140 m² +147% | 2020 |
|---|
| 42, The Ridgeway798 m away | 353 m² | 490 m² | +137 m² +39% | 2022 |
|---|
| 41, Watford Road279 m away | 162 m² | 286 m² | +124 m² +77% | 2018 |
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| 1, Radlett Park Road895 m away | 210 m² | 328 m² | +118 m² +56% | 2017 |
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| Spinneys, Watling Street896 m away | 242 m² | 358 m² | +116 m² +48% | 2026 |
|---|
| 33, Gills Hill257 m away | 168 m² | 282 m² | +114 m² +68% | 2018 |
|---|
| 3, Loom Place573 m away | 184 m² | 295 m² | +111 m² +60% | 2025 |
|---|
| 3, Newberries Avenue982 m away | 110 m² | 219 m² | +109 m² +99% | 2020 |
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| 7, Nightingale Close349 m away | 178 m² | 284 m² | +106 m² +60% | 2017 |
|---|
| 33, Christchurch Crescent596 m away | 111 m² | 215 m² | +104 m² +94% | 2015 |
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| 21, Elm Walk179 m away | 85 m² | 186 m² | +101 m² +119% | 2025 |
|---|
| 30, Letchmore Road434 m away | 278 m² | 378 m² | +100 m² +36% | 2022 |
|---|
| 20, The Grove842 m away | 156 m² | 256 m² | +100 m² +64% | 2020 |
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| 30, Newlands Avenue863 m away | 390 m² | 488 m² | +98 m² +25% | 2020 |
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| 13, Willow Way259 m away | 103 m² | 198 m² | +95 m² +92% | 2020 |
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| 12, Scrubbitts Park Road351 m away | 60 m² | 148 m² | +88 m² +147% | 2019 |
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| 2, Folly Close137 m away | 175 m² | 262 m² | +87 m² +50% | 2012 |
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| 6, Manor Court, Common Lane950 m away | 188 m² | 272 m² | +84 m² +45% | 2022 |
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| 9, The Rose Walk920 m away | 282 m² | 365 m² | +83 m² +29% | 2017 |
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| Station House, Shenley Hill836 m away | 141 m² | 224 m² | +83 m² +59% | 2016 |
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| 4, Loom Lane705 m away | 256 m² | 337 m² | +81 m² +32% | 2020 |
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| 89, Gills Hill Lane375 m away | 75 m² | 152 m² | +77 m² +103% | 2025 |
|---|
| 20, Elm Walk179 m away | 83 m² | 156 m² | +73 m² +88% | 2015 |
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| 41, Elm Walk179 m away | 115 m² | 185 m² | +70 m² +61% | 2026 |
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| Gravels, The Pathway335 m away | 198 m² | 268 m² | +70 m² +35% | 2013 |
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| 7, Dellfield Close322 m away | 320 m² | 387 m² | +67 m² +21% | 2021 |
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| 66, Loom Lane471 m away | 105 m² | 169 m² | +64 m² +61% | 2026 |
|---|
| 34, Gills Hill Lane128 m away | 138 m² | 199 m² | +61 m² +44% | 2019 |
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| 37, Elm Walk179 m away | 82 m² | 143 m² | +61 m² +74% | 2016 |
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| 2, Heyford Road671 m away | 86 m² | 147 m² | +61 m² +71% | 2012 |
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| 4a, Rendlesham Avenue465 m away | 83 m² | 141 m² | +58 m² +70% | 2019 |
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| 51, Cobden Hill971 m away | 163 m² | 221 m² | +58 m² +36% | 2018 |
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| 5, Maytrees572 m away | 333 m² | 390 m² | +57 m² +17% | 2024 |
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| 4, Scrubbitts Park Road351 m away | 93 m² | 150 m² | +57 m² +61% | 2018 |
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| 20, Aldenham Avenue450 m away | 167 m² | 223 m² | +56 m² +34% | 2026 |
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| 91, Gills Hill Lane375 m away | 79 m² | 135 m² | +56 m² +71% | 2025 |
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| 24, Watling Street833 m away | 109 m² | 165 m² | +56 m² +51% | 2025 |
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| Oakleigh, Willow Way318 m away | 111 m² | 164 m² | +53 m² +48% | 2026 |
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| 19, Folly Close137 m away | 166 m² | 219 m² | +53 m² +32% | 2022 |
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| 6, Station Road665 m away | 103 m² | 155 m² | +52 m² +50% | 2019 |
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| 5, Aldenham Avenue675 m away | 167 m² | 217 m² | +50 m² +30% | 2024 |
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| 1a, Willow Way259 m away | 101 m² | 151 m² | +50 m² +50% | 2013 |
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| 3, The Crosspath570 m away | 203 m² | 252 m² | +49 m² +24% | 2025 |
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| 45, Aldenham Avenue520 m away | 252 m² | 297 m² | +45 m² +18% | 2026 |
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| Chase Lodge, Gills Hill Lane241 m away | 285 m² | 329 m² | +44 m² +15% | 2017 |
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| 11, Park Road735 m away | 89 m² | 130 m² | +41 m² +46% | 2026 |
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| 7, Farm Cottages745 m away | 65 m² | 106 m² | +41 m² +63% | 2025 |
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| 24, The Grove842 m away | 159 m² | 200 m² | +41 m² +26% | 2025 |
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| 22, Christchurch Crescent550 m away | 105 m² | 146 m² | +41 m² +39% | 2014 |
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| 64, Gills Hill Lane402 m away | 136 m² | 176 m² | +40 m² +29% | 2024 |
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| 4, Dellfield Close322 m away | 134 m² | 174 m² | +40 m² +30% | 2020 |
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| 6, Nightingale Close349 m away | 215 m² | 253 m² | +38 m² +18% | 2023 |
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| 40, Elm Walk179 m away | 112 m² | 150 m² | +38 m² +34% | 2019 |
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| 2, Aldenham Road646 m away | 85 m² | 123 m² | +38 m² +45% | 2012 |
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| 15, Park Road735 m away | 101 m² | 138 m² | +37 m² +37% | 2024 |
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| 12, Aldenham Road646 m away | 96 m² | 133 m² | +37 m² +39% | 2021 |
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| 23, Rendlesham Avenue465 m away | 89 m² | 125 m² | +36 m² +40% | 2026 |
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| 3, Cragg Avenue268 m away | 83 m² | 119 m² | +36 m² +43% | 2019 |
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| 75, The Crosspath527 m away | 86 m² | 122 m² | +36 m² +42% | 2017 |
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| 27, Radlett Park Road895 m away | 107 m² | 143 m² | +36 m² +34% | 2016 |
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| 103, Loom Lane615 m away | 107 m² | 142 m² | +35 m² +33% | 2018 |
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| 4, Rendlesham Avenue465 m away | 100 m² | 134 m² | +34 m² +34% | 2022 |
|---|
| 1, The Rose Walk920 m away | 155 m² | 187 m² | +32 m² +21% | 2013 |
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| 10, Craigmount894 m away | 62 m² | 94 m² | +32 m² +52% | 2010 |
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| Fourways, Upper Station Road562 m away | 136 m² | 167 m² | +31 m² +23% | 2018 |
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| 4, Homefield Road631 m away | 130 m² | 160 m² | +30 m² +23% | 2023 |
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| 6, Cobden Hill925 m away | 68 m² | 98 m² | +30 m² +44% | 2022 |
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| 6, Gills Hill372 m away | 93 m² | 122 m² | +29 m² +31% | 2025 |
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| 43, Park Road735 m away | 148 m² | 177 m² | +29 m² +20% | 2025 |
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| 39, Station Road669 m away | 79 m² | 106 m² | +27 m² +34% | 2025 |
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| 27a, Cobden Hill971 m away | 168 m² | 195 m² | +27 m² +16% | 2024 |
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| 28, Watling Street833 m away | 95 m² | 122 m² | +27 m² +28% | 2022 |
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| 7, Upper Station Road562 m away | 101 m² | 128 m² | +27 m² +27% | 2017 |
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| 55, Kendals Close511 m away | 99 m² | 125 m² | +26 m² +26% | 2020 |
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| Flat 9, Slade Court, Watling Street648 m away | 46 m² | 70 m² | +24 m² +52% | 2025 |
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| 4, The Mews971 m away | 142 m² | 166 m² | +24 m² +17% | 2025 |
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| 25, Station Road669 m away | 70 m² | 93 m² | +23 m² +33% | 2024 |
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| 22, Upper Station Road561 m away | 72 m² | 95 m² | +23 m² +32% | 2013 |
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| 17, Phillimore Place465 m away | 84 m² | 106 m² | +22 m² +26% | 2018 |
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| 12, Manor Court, Common Lane950 m away | 118 m² | 139 m² | +21 m² +18% | 2021 |
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| Flat 1, Conway House, Watling Street702 m away | 66 m² | 87 m² | +21 m² +32% | 2012 |
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| 3, Upper Station Road562 m away | 104 m² | 124 m² | +20 m² +19% | 2021 |
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| 44, Elm Walk179 m away | 100 m² | 119 m² | +19 m² +19% | 2026 |
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| 4, Aldenham Road646 m away | 88 m² | 107 m² | +19 m² +22% | 2025 |
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| 39, Gills Hill Lane214 m away | 116 m² | 135 m² | +19 m² +16% | 2023 |
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| 30, Station Road665 m away | 65 m² | 83 m² | +18 m² +28% | 2026 |
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| 251, Watling Street749 m away | 30 m² | 48 m² | +18 m² +60% | 2019 |
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| 18, Station Road665 m away | 71 m² | 88 m² | +17 m² +24% | 2016 |
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| 5, Station Road669 m away | 69 m² | 85 m² | +16 m² +23% | 2024 |
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| 8, Coningsby Court, The Dell309 m away | 50 m² | 65 m² | +15 m² +30% | 2020 |
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| Flat 3, Bank Chambers, 84, Watling Street702 m away | 92 m² | 107 m² | +15 m² +16% | 2020 |
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