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 4BS
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 Avenue904 m away | 191 m² | 461 m² | +270 m² +141% | 2015 |
| 7, Royston Park Road756 m away | 262 m² | 500 m² | +238 m² +91% | 2020 |
| 35, The Avenue904 m away | 149 m² | 351 m² | +202 m² +136% | 2025 |
| Winston House, Old Redding532 m away | 266 m² | 437 m² | +171 m² +64% | 2018 |
| 46, The Avenue770 m away | 158 m² | 323 m² | +165 m² +104% | 2019 |
| 3, Bellfield Avenue850 m away | 108 m² | 251 m² | +143 m² +132% | 2014 |
| Horning Reach, Royston Park Road773 m away | 198 m² | 339 m² | +141 m² +71% | 2017 |
| 109, Rowlands Avenue293 m away | 210 m² | 343 m² | +133 m² +63% | 2016 |
| 216, Uxbridge Road619 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.
| 118 m² |
| 242 m² |
| +124 m² +105% |
| 2022 |
| 87, Rowlands Avenue293 m away | 107 m² | 227 m² | +120 m² +112% | 2015 |
|---|
| 17, Milne Field546 m away | 106 m² | 220 m² | +114 m² +108% | 2013 |
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| 4, Bellfield Avenue894 m away | 181 m² | 293 m² | +112 m² +62% | 2025 |
|---|
| 3, Clonard Way315 m away | 170 m² | 279 m² | +109 m² +64% | 2023 |
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| 1, Oakmeade255 m away | 73 m² | 177 m² | +104 m² +142% | 2025 |
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| 2, Hillview Close865 m away | 142 m² | 239 m² | +97 m² +68% | 2025 |
|---|
| 7, Bellfield Avenue850 m away | 273 m² | 360 m² | +87 m² +32% | 2024 |
|---|
| 3, Wealdwood Gardens97 m away | 137 m² | 221 m² | +84 m² +61% | 2022 |
|---|
| 9, Bellfield Avenue850 m away | 83 m² | 167 m² | +84 m² +101% | 2010 |
|---|
| 32, The Lawns310 m away | 97 m² | 178 m² | +81 m² +84% | 2013 |
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| 62, Sherington Avenue443 m away | 85 m² | 165 m² | +80 m² +94% | 2021 |
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| 45, Cedar Drive260 m away | 90 m² | 163 m² | +73 m² +81% | 2015 |
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| 21, Milne Field546 m away | 123 m² | 195 m² | +72 m² +59% | 2023 |
|---|
| 11, Bellfield Avenue850 m away | 139 m² | 210 m² | +71 m² +51% | 2019 |
|---|
| 3, Warburton Close911 m away | 136 m² | 205 m² | +69 m² +51% | 2026 |
|---|
| 31, Sherington Avenue408 m away | 119 m² | 188 m² | +69 m² +58% | 2023 |
|---|
| 34, Rowlands Avenue250 m away | 143 m² | 212 m² | +69 m² +48% | 2022 |
|---|
| 160, Uxbridge Road488 m away | 84 m² | 153 m² | +69 m² +82% | 2020 |
|---|
| 77, Hillview Road998 m away | 117 m² | 185 m² | +68 m² +58% | 2022 |
|---|
| 35, The Lawns310 m away | 97 m² | 162 m² | +65 m² +67% | 2015 |
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| 11, The Lawns232 m away | 101 m² | 165 m² | +64 m² +63% | 2022 |
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| 5, Ufford Close584 m away | 82 m² | 143 m² | +61 m² +74% | 2015 |
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| 52, Sherington Avenue443 m away | 125 m² | 183 m² | +58 m² +46% | 2020 |
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| 21, Park View933 m away | 134 m² | 191 m² | +57 m² +43% | 2024 |
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| 3, Sherington Avenue408 m away | 108 m² | 164 m² | +56 m² +52% | 2025 |
|---|
| 36, Furham Feild345 m away | 131 m² | 184 m² | +53 m² +40% | 2014 |
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| 49, Oxhey Lane228 m away | 86 m² | 137 m² | +51 m² +59% | 2021 |
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| 27, Dove Park861 m away | 56 m² | 106 m² | +50 m² +89% | 2024 |
|---|
| 38, The Lawns310 m away | 97 m² | 145 m² | +48 m² +49% | 2025 |
|---|
| 20, Furham Feild345 m away | 131 m² | 176 m² | +45 m² +34% | 2017 |
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| 188, Uxbridge Road776 m away | 125 m² | 169 m² | +44 m² +35% | 2014 |
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| 20, West Drive1000 m away | 190 m² | 233 m² | +43 m² +23% | 2012 |
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| 10, Pinewood Close76 m away | 99 m² | 141 m² | +42 m² +42% | 2023 |
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| Flat 7, Ashwood Houses, 15, The Avenue675 m away | 80 m² | 122 m² | +42 m² +53% | 2019 |
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| 100, Courtenay Avenue878 m away | 69 m² | 110 m² | +41 m² +59% | 2020 |
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| The Gate House, 212, Uxbridge Road619 m away | 91 m² | 132 m² | +41 m² +45% | 2015 |
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| 58, Cedar Drive353 m away | 157 m² | 197 m² | +40 m² +25% | 2016 |
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| 71, Hutton Lane887 m away | 89 m² | 128 m² | +39 m² +44% | 2023 |
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| 186, Uxbridge Road776 m away | 83 m² | 122 m² | +39 m² +47% | 2020 |
|---|
| 1, Hillview Road998 m away | 138 m² | 177 m² | +39 m² +28% | 2018 |
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| 143, Courtenay Avenue893 m away | 117 m² | 155 m² | +38 m² +32% | 2026 |
|---|
| 1, Walpole Close557 m away | 93 m² | 130 m² | +37 m² +40% | 2012 |
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| 4, Ufford Close584 m away | 91 m² | 127 m² | +36 m² +40% | 2026 |
|---|
| 82, Rowlands Avenue86 m away | 145 m² | 180 m² | +35 m² +24% | 2021 |
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| 91, Dove Park794 m away | 53 m² | 87 m² | +34 m² +64% | 2014 |
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| Flat 2, Oak Lodge, 15a, The Avenue682 m away | 74 m² | 107 m² | +33 m² +45% | 2016 |
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| 17, Mepham Gardens810 m away | 84 m² | 115 m² | +31 m² +37% | 2020 |
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| Eastleigh, Headstone Lane902 m away | 91 m² | 122 m² | +31 m² +34% | 2015 |
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| Flat 10, Ridgeway Court, 1, The Avenue634 m away | 52 m² | 82 m² | +30 m² +58% | 2018 |
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| 39, The Avenue904 m away | 164 m² | 193 m² | +29 m² +18% | 2010 |
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| 3, Cedar Drive535 m away | 114 m² | 142 m² | +28 m² +25% | 2025 |
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| 16, West Drive1000 m away | 165 m² | 192 m² | +27 m² +16% | 2025 |
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| 155, Courtenay Avenue893 m away | 98 m² | 124 m² | +26 m² +27% | 2014 |
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| 35, Cedar Drive260 m away | 135 m² | 159 m² | +24 m² +18% | 2024 |
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| Glencara, Royston Grove521 m away | 138 m² | 162 m² | +24 m² +17% | 2023 |
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| Mcnorma, Headstone Lane902 m away | 79 m² | 103 m² | +24 m² +30% | 2019 |
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| 33, Furham Feild367 m away | 146 m² | 168 m² | +22 m² +15% | 2018 |
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| 57, Tillotson Road655 m away | 81 m² | 103 m² | +22 m² +27% | 2017 |
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| 9, Highbanks Road247 m away | 111 m² | 132 m² | +21 m² +19% | 2016 |
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| 17, Rowlands Avenue282 m away | 124 m² | 144 m² | +20 m² +16% | 2025 |
|---|
| Flat 4, 4, The Avenue596 m away | 47 m² | 67 m² | +20 m² +43% | 2023 |
|---|
| 4, Carrington Square808 m away | 68 m² | 88 m² | +20 m² +29% | 2015 |
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| 11, Dove Park861 m away | 70 m² | 90 m² | +20 m² +29% | 2015 |
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| Flat 29, Homehayes House, Oakdene Close937 m away | 39 m² | 59 m² | +20 m² +51% | 2014 |
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| 291, Headstone Lane786 m away | 75 m² | 94 m² | +19 m² +25% | 2014 |
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| 85, Courtenay Avenue893 m away | 74 m² | 93 m² | +19 m² +26% | 2014 |
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| Flat 28, Homehayes House, Oakdene Close937 m away | 37 m² | 56 m² | +19 m² +51% | 2014 |
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| 5, Braeside Close678 m away | 116 m² | 134 m² | +18 m² +16% | 2024 |
|---|
| 8, Mullion Close796 m away | 54 m² | 72 m² | +18 m² +33% | 2021 |
|---|
| 65, Courtenay Avenue893 m away | 85 m² | 103 m² | +18 m² +21% | 2014 |
|---|
| Flat 21, Homehayes House, Oakdene Close937 m away | 41 m² | 59 m² | +18 m² +44% | 2014 |
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| Flat 30, Homehayes House, Oakdene Close937 m away | 41 m² | 59 m² | +18 m² +44% | 2014 |
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| 59, Dove Park808 m away | 55 m² | 72 m² | +17 m² +31% | 2014 |
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| 135, Courtenay Avenue893 m away | 65 m² | 82 m² | +17 m² +26% | 2014 |
|---|
| Flat 13, Homehayes House, Oakdene Close937 m away | 42 m² | 59 m² | +17 m² +40% | 2014 |
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| Flat 5, Homehayes House, Oakdene Close937 m away | 43 m² | 60 m² | +17 m² +40% | 2014 |
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| Flat 12, Homehayes House, Oakdene Close937 m away | 40 m² | 57 m² | +17 m² +43% | 2014 |
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| 136, Uxbridge Road488 m away | 85 m² | 102 m² | +17 m² +20% | 2009 |
|---|
| 115, Dove Park794 m away | 56 m² | 72 m² | +16 m² +29% | 2014 |
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| Flat 15, Homehayes House, Oakdene Close937 m away | 40 m² | 56 m² | +16 m² +40% | 2014 |
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| Flat 20, Homehayes House, Oakdene Close937 m away | 40 m² | 56 m² | +16 m² +40% | 2014 |
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| 10, Chicheley Gardens744 m away | 83 m² | 98 m² | +15 m² +18% | 2024 |
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| 42, Tillotson Road685 m away | 77 m² | 92 m² | +15 m² +19% | 2018 |
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| 103, Dove Park794 m away | 57 m² | 72 m² | +15 m² +26% | 2014 |
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| 111, Dove Park794 m away | 57 m² | 72 m² | +15 m² +26% | 2014 |
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| Flat 7, Homehayes House, Oakdene Close937 m away | 42 m² | 57 m² | +15 m² +36% | 2014 |
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