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 HA5 4PA
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 |
|---|---|---|---|---|
| 65, The Avenue406 m away | 191 m² | 461 m² | +270 m² +141% | 2015 |
| 7, Royston Park Road551 m away | 262 m² | 500 m² | +238 m² +91% | 2020 |
| 35, The Avenue406 m away | 149 m² | 351 m² | +202 m² +136% | 2025 |
| 17, Lytton Road652 m away | 132 m² | 303 m² | +171 m² +130% | 2024 |
| 46, The Avenue355 m away | 158 m² | 323 m² | +165 m² +104% | 2019 |
| Horning Reach, Royston Park Road473 m away | 198 m² | 339 m² | +141 m² +71% | 2017 |
| 109, Rowlands Avenue850 m away | 210 m² | 343 m² | +133 m² +63% | 2016 |
| 87, Rowlands Avenue850 m away | 107 m² | 227 m² | +120 m² +112% | 2015 |
| White Lodge, Nugents Park670 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.
| 90 m² |
| 209 m² |
| +119 m² +132% |
| 2023 |
| 17, Milne Field475 m away | 106 m² | 220 m² | +114 m² +108% | 2013 |
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| 17, Woodridings Avenue595 m away | 171 m² | 284 m² | +113 m² +66% | 2017 |
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| 3, Clonard Way688 m away | 170 m² | 279 m² | +109 m² +64% | 2023 |
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| 1, Oakmeade702 m away | 73 m² | 177 m² | +104 m² +142% | 2025 |
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| 19, Colburn Avenue282 m away | 88 m² | 186 m² | +98 m² +111% | 2025 |
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| 2, Hillview Close176 m away | 142 m² | 239 m² | +97 m² +68% | 2025 |
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| 3, Holly Grove885 m away | 204 m² | 301 m² | +97 m² +48% | 2009 |
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| 36, St Thomas Drive771 m away | 110 m² | 202 m² | +92 m² +84% | 2026 |
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| 2a, Towers Road746 m away | 124 m² | 212 m² | +88 m² +71% | 2024 |
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| 6, Newland Close603 m away | 113 m² | 197 m² | +84 m² +74% | 2026 |
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| 3, Wealdwood Gardens917 m away | 137 m² | 221 m² | +84 m² +61% | 2022 |
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| 32, The Lawns983 m away | 97 m² | 178 m² | +81 m² +84% | 2013 |
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| 62, Sherington Avenue715 m away | 85 m² | 165 m² | +80 m² +94% | 2021 |
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| 11, Colburn Avenue282 m away | 96 m² | 174 m² | +78 m² +81% | 2022 |
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| 29, Evelyn Drive734 m away | 116 m² | 193 m² | +77 m² +66% | 2023 |
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| 62, Sylvia Avenue356 m away | 73 m² | 149 m² | +76 m² +104% | 2025 |
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| 45, Cedar Drive712 m away | 90 m² | 163 m² | +73 m² +81% | 2015 |
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| 21, Milne Field475 m away | 123 m² | 195 m² | +72 m² +59% | 2023 |
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| 67, Woodhall Gate875 m away | 132 m² | 203 m² | +71 m² +54% | 2016 |
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| 23, Grimsdyke Road237 m away | 177 m² | 247 m² | +70 m² +40% | 2024 |
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| 41, Hallam Gardens394 m away | 126 m² | 195 m² | +69 m² +55% | 2026 |
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| 31, Sherington Avenue698 m away | 119 m² | 188 m² | +69 m² +58% | 2023 |
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| 34, Rowlands Avenue907 m away | 143 m² | 212 m² | +69 m² +48% | 2022 |
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| 7, Colburn Avenue282 m away | 95 m² | 164 m² | +69 m² +73% | 2020 |
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| 160, Uxbridge Road747 m away | 84 m² | 153 m² | +69 m² +82% | 2020 |
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| 77, Hillview Road46 m away | 117 m² | 185 m² | +68 m² +58% | 2022 |
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| 1, Sylvia Avenue245 m away | 138 m² | 205 m² | +67 m² +49% | 2023 |
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| 11, Lyndon Avenue402 m away | 85 m² | 150 m² | +65 m² +76% | 2016 |
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| 35, The Lawns983 m away | 97 m² | 162 m² | +65 m² +67% | 2015 |
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| 11, The Lawns960 m away | 101 m² | 165 m² | +64 m² +63% | 2022 |
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| 31, Derwent Avenue490 m away | 55 m² | 119 m² | +64 m² +116% | 2019 |
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| The Ridge, Nugents Park670 m away | 356 m² | 415 m² | +59 m² +17% | 2019 |
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| 52, Sherington Avenue715 m away | 125 m² | 183 m² | +58 m² +46% | 2020 |
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| 21, Park View477 m away | 134 m² | 191 m² | +57 m² +43% | 2024 |
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| 3, Sherington Avenue698 m away | 108 m² | 164 m² | +56 m² +52% | 2025 |
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| 196, Albury Drive769 m away | 131 m² | 187 m² | +56 m² +43% | 2022 |
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| 13, St Thomas Drive822 m away | 133 m² | 189 m² | +56 m² +42% | 2022 |
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| 29, Sylvia Avenue245 m away | 88 m² | 143 m² | +55 m² +63% | 2021 |
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| 36, Furham Feild704 m away | 131 m² | 184 m² | +53 m² +40% | 2014 |
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| 61, Sylvia Avenue423 m away | 92 m² | 143 m² | +51 m² +55% | 2011 |
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| 27, Dove Park309 m away | 56 m² | 106 m² | +50 m² +89% | 2024 |
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| 74, Woodhall Gate925 m away | 101 m² | 150 m² | +49 m² +49% | 2024 |
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| 177, Albury Drive904 m away | 127 m² | 175 m² | +48 m² +38% | 2025 |
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| 38, The Lawns983 m away | 97 m² | 145 m² | +48 m² +49% | 2025 |
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| 20, Towers Road746 m away | 189 m² | 234 m² | +45 m² +24% | 2023 |
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| 20, Furham Feild704 m away | 131 m² | 176 m² | +45 m² +34% | 2017 |
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| 109, Sylvia Avenue598 m away | 104 m² | 148 m² | +44 m² +42% | 2026 |
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| 127, Sylvia Avenue598 m away | 91 m² | 134 m² | +43 m² +47% | 2021 |
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| 10, Pinewood Close943 m away | 99 m² | 141 m² | +42 m² +42% | 2023 |
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| Flat 7, Ashwood Houses, 15, The Avenue282 m away | 80 m² | 122 m² | +42 m² +53% | 2019 |
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| 58, Cedar Drive626 m away | 157 m² | 197 m² | +40 m² +25% | 2016 |
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| 1, Hillview Road46 m away | 138 m² | 177 m² | +39 m² +28% | 2018 |
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| 8, Broadmead Close450 m away | 95 m² | 133 m² | +38 m² +40% | 2023 |
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| 20, Woodridings Close349 m away | 70 m² | 107 m² | +37 m² +53% | 2022 |
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| 1, Walpole Close406 m away | 93 m² | 130 m² | +37 m² +40% | 2012 |
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| 82, Rowlands Avenue873 m away | 145 m² | 180 m² | +35 m² +24% | 2021 |
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| 17, Towers Road785 m away | 130 m² | 165 m² | +35 m² +27% | 2014 |
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| 91, Dove Park323 m away | 53 m² | 87 m² | +34 m² +64% | 2014 |
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| Flat 2, Oak Lodge, 15a, The Avenue275 m away | 74 m² | 107 m² | +33 m² +45% | 2016 |
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| 67, Sylvia Avenue423 m away | 177 m² | 209 m² | +32 m² +18% | 2026 |
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| Merebridge House, Old Hall Drive867 m away | 176 m² | 208 m² | +32 m² +18% | 2019 |
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| 19, Lyndon Avenue402 m away | 91 m² | 123 m² | +32 m² +35% | 2016 |
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| 9, Woodridings Avenue595 m away | 184 m² | 215 m² | +31 m² +17% | 2024 |
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| 10, Marsworth Avenue825 m away | 174 m² | 204 m² | +30 m² +17% | 2025 |
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| 35a, Wellington Road540 m away | 111 m² | 141 m² | +30 m² +27% | 2023 |
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| 8, Towers Road746 m away | 147 m² | 177 m² | +30 m² +20% | 2020 |
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| 19, Newland Close603 m away | 75 m² | 105 m² | +30 m² +40% | 2019 |
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| Flat 10, Ridgeway Court, 1, The Avenue402 m away | 52 m² | 82 m² | +30 m² +58% | 2018 |
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| 39, The Avenue406 m away | 164 m² | 193 m² | +29 m² +18% | 2010 |
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| 3, Cedar Drive422 m away | 114 m² | 142 m² | +28 m² +25% | 2025 |
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| 19, Derwent Avenue490 m away | 64 m² | 91 m² | +27 m² +42% | 2023 |
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| 268a, Uxbridge Road211 m away | 34 m² | 61 m² | +27 m² +79% | 2021 |
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| 92, Woodhall Gate875 m away | 155 m² | 181 m² | +26 m² +17% | 2017 |
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| 512, Uxbridge Road904 m away | 136 m² | 161 m² | +25 m² +18% | 2021 |
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| 1, Old Hall Close875 m away | 156 m² | 181 m² | +25 m² +16% | 2020 |
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| 6, Avon Mews420 m away | 83 m² | 107 m² | +24 m² +29% | 2026 |
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| 33, Hallam Gardens394 m away | 90 m² | 114 m² | +24 m² +27% | 2024 |
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| 35, Cedar Drive712 m away | 135 m² | 159 m² | +24 m² +18% | 2024 |
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| Glencara, Royston Grove606 m away | 138 m² | 162 m² | +24 m² +17% | 2023 |
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| 7, Grimsdyke Road237 m away | 160 m² | 184 m² | +24 m² +15% | 2022 |
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| 16, Hallam Gardens445 m away | 92 m² | 116 m² | +24 m² +26% | 2018 |
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| 30, Grimsdyke Road385 m away | 86 m² | 109 m² | +23 m² +27% | 2024 |
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| 12, Broadmead Close450 m away | 139 m² | 161 m² | +22 m² +16% | 2022 |
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| 33, Furham Feild641 m away | 146 m² | 168 m² | +22 m² +15% | 2018 |
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| 56, St Thomas Drive771 m away | 130 m² | 151 m² | +21 m² +16% | 2025 |
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| 84, Sylvia Avenue598 m away | 64 m² | 85 m² | +21 m² +33% | 2023 |
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| 9, Highbanks Road991 m away | 111 m² | 132 m² | +21 m² +19% | 2016 |
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| 44, Sylvia Avenue356 m away | 90 m² | 111 m² | +21 m² +23% | 2015 |
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| 17, Rowlands Avenue863 m away | 124 m² | 144 m² | +20 m² +16% | 2025 |
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| Flat 4, 4, The Avenue386 m away | 47 m² | 67 m² | +20 m² +43% | 2023 |
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| 11, Dove Park309 m away | 70 m² | 90 m² | +20 m² +29% | 2015 |
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| Flat 29, Homehayes House, Oakdene Close163 m away | 39 m² | 59 m² | +20 m² +51% | 2014 |
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| 14, Newland Close603 m away | 95 m² | 114 m² | +19 m² +20% | 2025 |
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| Flat 28, Homehayes House, Oakdene Close163 m away | 37 m² | 56 m² | +19 m² +51% | 2014 |
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| 5, Braeside Close324 m away | 116 m² | 134 m² | +18 m² +16% | 2024 |
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| 39, Wessex Drive533 m away | 111 m² | 129 m² | +18 m² +16% | 2019 |
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| Flat 21, Homehayes House, Oakdene Close163 m away | 41 m² | 59 m² | +18 m² +44% | 2014 |
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| Flat 30, Homehayes House, Oakdene Close163 m away | 41 m² | 59 m² | +18 m² +44% | 2014 |
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| Flat 13, Homehayes House, Oakdene Close163 m away | 42 m² | 59 m² | +17 m² +40% | 2014 |
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| Flat 5, Homehayes House, Oakdene Close163 m away | 43 m² | 60 m² | +17 m² +40% | 2014 |
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| Flat 12, Homehayes House, Oakdene Close163 m away | 40 m² | 57 m² | +17 m² +43% | 2014 |
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| 59, Dove Park347 m away | 55 m² | 72 m² | +17 m² +31% | 2014 |
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| 56, Grimsdyke Road385 m away | 89 m² | 106 m² | +17 m² +19% | 2012 |
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| 136, Uxbridge Road747 m away | 85 m² | 102 m² | +17 m² +20% | 2009 |
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| Flat 15, Homehayes House, Oakdene Close163 m away | 40 m² | 56 m² | +16 m² +40% | 2014 |
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| Flat 20, Homehayes House, Oakdene Close163 m away | 40 m² | 56 m² | +16 m² +40% | 2014 |
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| 115, Dove Park323 m away | 56 m² | 72 m² | +16 m² +29% | 2014 |
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| 2, Avon Mews420 m away | 82 m² | 97 m² | +15 m² +18% | 2026 |
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| Flat 7, Homehayes House, Oakdene Close163 m away | 42 m² | 57 m² | +15 m² +36% | 2014 |
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| 103, Dove Park323 m away | 57 m² | 72 m² | +15 m² +26% | 2014 |
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| 111, Dove Park323 m away | 57 m² | 72 m² | +15 m² +26% | 2014 |
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