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 HA7 4JH
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 |
|---|---|---|---|---|
| 58, Pangbourne Drive685 m away | 179 m² | 422 m² | +243 m² +136% | 2024 |
| 32, Glanleam Road297 m away | 244 m² | 457 m² | +213 m² +87% | 2022 |
| 30, Elm Park744 m away | 134 m² | 327 m² | +193 m² +144% | 2019 |
| Red Roofs, Valencia Road78 m away | 269 m² | 458 m² | +189 m² +70% | 2015 |
| 149, Stanmore Hill941 m away | 218 m² | 368 m² | +150 m² +69% | 2017 |
| 5, Dovercourt Gardens787 m away | 175 m² | 309 m² | +134 m² +77% | 2021 |
| Newlands Dell, Pipers Green Lane932 m away | 183 m² | 314 m² | +131 m² +72% | 2017 |
| 33, Elm Park773 m away | 99 m² | 223 m² | +124 m² +125% | 2025 |
| 20, Glanleam Road297 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.
| 224 m² |
| 348 m² |
| +124 m² +55% |
| 2023 |
| 37, Dalkeith Grove852 m away | 157 m² | 269 m² | +112 m² +71% | 2022 |
|---|
| 17, Tintagel Drive633 m away | 88 m² | 199 m² | +111 m² +126% | 2026 |
|---|
| 5, Old Forge Close955 m away | 167 m² | 273 m² | +106 m² +63% | 2023 |
|---|
| 34, Glanleam Road297 m away | 276 m² | 382 m² | +106 m² +38% | 2015 |
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| 48, London Road583 m away | 108 m² | 212 m² | +104 m² +96% | 2021 |
|---|
| 17, Old Forge Close955 m away | 237 m² | 334 m² | +97 m² +41% | 2014 |
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| 44, Brockley Avenue862 m away | 180 m² | 270 m² | +90 m² +50% | 2017 |
|---|
| 39, Du Cros Drive782 m away | 106 m² | 195 m² | +89 m² +84% | 2023 |
|---|
| 4, Cherry Tree Way934 m away | 304 m² | 384 m² | +80 m² +26% | 2015 |
|---|
| 1, Brockley Hill797 m away | 416 m² | 492 m² | +76 m² +18% | 2021 |
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| 20, Dovercourt Gardens763 m away | 157 m² | 232 m² | +75 m² +48% | 2026 |
|---|
| 11, Nelson Road763 m away | 74 m² | 144 m² | +70 m² +95% | 2022 |
|---|
| 7, Pipers Green Lane876 m away | 261 m² | 329 m² | +68 m² +26% | 2014 |
|---|
| 93, Merrion Avenue489 m away | 85 m² | 152 m² | +67 m² +79% | 2024 |
|---|
| 21, Rees Drive720 m away | 215 m² | 282 m² | +67 m² +31% | 2019 |
|---|
| Tremar, Green Lane802 m away | 271 m² | 338 m² | +67 m² +25% | 2015 |
|---|
| 18, Court Drive805 m away | 146 m² | 208 m² | +62 m² +42% | 2025 |
|---|
| 109, Howberry Road846 m away | 95 m² | 157 m² | +62 m² +65% | 2023 |
|---|
| 3, Ingram Close618 m away | 71 m² | 132 m² | +61 m² +86% | 2025 |
|---|
| 37, Marsh Lane814 m away | 60 m² | 121 m² | +61 m² +102% | 2024 |
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| 21, Dalkeith Grove852 m away | 135 m² | 196 m² | +61 m² +45% | 2014 |
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| 46, Sandymount Avenue475 m away | 87 m² | 145 m² | +58 m² +67% | 2021 |
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| 50, Elm Park744 m away | 106 m² | 164 m² | +58 m² +55% | 2019 |
|---|
| 3, Heronslea Drive829 m away | 109 m² | 166 m² | +57 m² +52% | 2026 |
|---|
| 97, Howberry Road906 m away | 117 m² | 174 m² | +57 m² +49% | 2026 |
|---|
| 1, Berry Hill534 m away | 82 m² | 139 m² | +57 m² +70% | 2014 |
|---|
| 7, Chevalier Close669 m away | 151 m² | 205 m² | +54 m² +36% | 2018 |
|---|
| 4, Brockley Close818 m away | 220 m² | 273 m² | +53 m² +24% | 2012 |
|---|
| 5, Claudius Close621 m away | 132 m² | 184 m² | +52 m² +39% | 2024 |
|---|
| 10, Sandymount Avenue475 m away | 115 m² | 165 m² | +50 m² +43% | 2020 |
|---|
| 25, Tintagel Drive633 m away | 100 m² | 148 m² | +48 m² +48% | 2015 |
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| 7, Berry Hill534 m away | 156 m² | 203 m² | +47 m² +30% | 2022 |
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| 23, Sandymount Avenue487 m away | 90 m² | 137 m² | +47 m² +52% | 2017 |
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| 24, Bernays Close941 m away | 68 m² | 113 m² | +45 m² +66% | 2026 |
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| 58, Sandymount Avenue475 m away | 112 m² | 157 m² | +45 m² +40% | 2021 |
|---|
| 1, Brockleyside606 m away | 104 m² | 149 m² | +45 m² +43% | 2013 |
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| 20, Flora Close703 m away | 254 m² | 298 m² | +44 m² +17% | 2012 |
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| 40, Dene Gardens497 m away | 100 m² | 143 m² | +43 m² +43% | 2023 |
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| 69, Sandymount Avenue710 m away | 94 m² | 134 m² | +40 m² +43% | 2024 |
|---|
| 30, Berry Hill600 m away | 89 m² | 129 m² | +40 m² +45% | 2017 |
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| 27, Dennis Lane582 m away | 260 m² | 300 m² | +40 m² +15% | 2016 |
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| 28, Haig Road739 m away | 88 m² | 127 m² | +39 m² +44% | 2024 |
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| 76, Elm Park898 m away | 86 m² | 123 m² | +37 m² +43% | 2026 |
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| 9, Snaresbrook Drive641 m away | 144 m² | 180 m² | +36 m² +25% | 2026 |
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| 18, Beatty Road833 m away | 48 m² | 84 m² | +36 m² +75% | 2019 |
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| 4, Valencia Road0 m away | 232 m² | 268 m² | +36 m² +16% | 2014 |
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| 5, Brockley Close818 m away | 138 m² | 174 m² | +36 m² +26% | 2014 |
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| 34, Berry Hill600 m away | 105 m² | 140 m² | +35 m² +33% | 2024 |
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| 95, Stanmore Hill764 m away | 129 m² | 164 m² | +35 m² +27% | 2024 |
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| 4, The Spinney869 m away | 138 m² | 171 m² | +33 m² +24% | 2010 |
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| 48a, The Broadway439 m away | 58 m² | 90 m² | +32 m² +55% | 2023 |
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| 2, Windsor House, Pynnacles Close753 m away | 64 m² | 96 m² | +32 m² +50% | 2020 |
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| 82, Stanmore Hill728 m away | 202 m² | 233 m² | +31 m² +15% | 2020 |
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| 8, Tintagel Drive633 m away | 144 m² | 174 m² | +30 m² +21% | 2026 |
|---|
| 122, Marsh Lane843 m away | 87 m² | 117 m² | +30 m² +34% | 2024 |
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| 4, Dene Court, Dene Gardens407 m away | 74 m² | 104 m² | +30 m² +41% | 2021 |
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| 85a, Elm Park977 m away | 71 m² | 101 m² | +30 m² +42% | 2020 |
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| 43, Elm Park773 m away | 90 m² | 120 m² | +30 m² +33% | 2019 |
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| 109, Merrion Avenue687 m away | 95 m² | 124 m² | +29 m² +31% | 2026 |
|---|
| 7, Julius Caesar Way663 m away | 153 m² | 182 m² | +29 m² +19% | 2023 |
|---|
| 95, Merrion Avenue489 m away | 88 m² | 117 m² | +29 m² +33% | 2016 |
|---|
| 26, Merryfield Gardens632 m away | 71 m² | 98 m² | +27 m² +38% | 2025 |
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| 27, Oak Lodge Close317 m away | 85 m² | 111 m² | +26 m² +31% | 2023 |
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| 57, Elm Park773 m away | 112 m² | 137 m² | +25 m² +22% | 2024 |
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| 49a, The Broadway483 m away | 79 m² | 103 m² | +24 m² +30% | 2026 |
|---|
| 40, Glebe Road608 m away | 130 m² | 153 m² | +23 m² +18% | 2024 |
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| 59, Wychwood Avenue988 m away | 110 m² | 133 m² | +23 m² +21% | 2013 |
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| 12, Berry Hill600 m away | 116 m² | 136 m² | +20 m² +17% | 2025 |
|---|
| 7, Charlbury Avenue647 m away | 96 m² | 116 m² | +20 m² +21% | 2021 |
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| Flat 8, Stanmore Lodge, 71, Stanmore Hill723 m away | 70 m² | 90 m² | +20 m² +29% | 2014 |
|---|
| 79, Beatty Road833 m away | 83 m² | 103 m² | +20 m² +24% | 2014 |
|---|
| The Old Stables, Pinnacle Place, Green Lane802 m away | 122 m² | 141 m² | +19 m² +16% | 2025 |
|---|
| 9, Glebe Road599 m away | 68 m² | 87 m² | +19 m² +28% | 2024 |
|---|
| 33, Tintagel Drive633 m away | 88 m² | 107 m² | +19 m² +22% | 2023 |
|---|
| 21, Sandymount Avenue487 m away | 88 m² | 106 m² | +18 m² +20% | 2013 |
|---|
| Flat 12, Stanmore Towers, Church Road603 m away | 70 m² | 87 m² | +17 m² +24% | 2025 |
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| 24, Kerry Court187 m away | 53 m² | 70 m² | +17 m² +32% | 2024 |
|---|
| 40, Copley Road326 m away | 56 m² | 73 m² | +17 m² +30% | 2024 |
|---|
| 11, Oak Lodge Close317 m away | 74 m² | 91 m² | +17 m² +23% | 2023 |
|---|
| Flat 9, Holbein House, 60, Marsh Lane691 m away | 103 m² | 120 m² | +17 m² +17% | 2023 |
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| 7, Bernays Close941 m away | 69 m² | 86 m² | +17 m² +25% | 2020 |
|---|
| 11, Lemark Close724 m away | 106 m² | 123 m² | +17 m² +16% | 2016 |
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| 49, Beauchamp Court, Hardwick Close520 m away | 85 m² | 101 m² | +16 m² +19% | 2023 |
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| Littlecote, Green Lane786 m away | 70 m² | 86 m² | +16 m² +23% | 2022 |
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| 10, Beech Tree Close579 m away | 72 m² | 88 m² | +16 m² +22% | 2015 |
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| 38, Beatty Road833 m away | 87 m² | 103 m² | +16 m² +18% | 2009 |
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| 13, Windsor House, Pynnacles Close753 m away | 99 m² | 114 m² | +15 m² +15% | 2024 |
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| Flat 5, Norfolk House, 203, London Road367 m away | 61 m² | 76 m² | +15 m² +25% | 2022 |
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| 2, Elm Park744 m away | 63 m² | 78 m² | +15 m² +24% | 2021 |
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| 16, Kerry Court125 m away | 57 m² | 72 m² | +15 m² +26% | 2019 |
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| 7, Haig Road767 m away | 70 m² | 85 m² | +15 m² +21% | 2016 |
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