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 RG40 1EZ
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 |
|---|---|---|---|---|
| 87, Oxford Road825 m away | 136 m² | 289 m² | +153 m² +113% | 2013 |
| 77, London Road666 m away | 144 m² | 285 m² | +141 m² +98% | 2022 |
| 8, Larch Avenue729 m away | 95 m² | 228 m² | +133 m² +140% | 2021 |
| 77, Oxford Road825 m away | 118 m² | 236 m² | +118 m² +100% | 2024 |
| 18, Park Avenue626 m away | 126 m² | 237 m² | +111 m² +88% | 2024 |
| 38, Matthewsgreen Road807 m away | 94 m² | 200 m² | +106 m² +113% | 2021 |
| 31, Wiltshire Road480 m away | 223 m² | 316 m² | +93 m² +42% | 2026 |
| 25, Goodchild Road865 m away | 102 m² | 193 m² | +91 m² +89% | 2022 |
| 12, Denton Road725 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.
| 109 m² |
| 197 m² |
| +88 m² +81% |
| 2026 |
| 34, Sewell Avenue932 m away | 96 m² | 180 m² | +84 m² +88% | 2025 |
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| 34, Seaford Road836 m away | 88 m² | 169 m² | +81 m² +92% | 2014 |
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| 4a, Ashridge Road857 m away | 81 m² | 157 m² | +76 m² +94% | 2022 |
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| 32, Rose Street500 m away | 61 m² | 136 m² | +75 m² +123% | 2013 |
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| 3, Cantley Farm Cottages, Cantley720 m away | 78 m² | 148 m² | +70 m² +90% | 2023 |
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| 28, Rose Street500 m away | 87 m² | 155 m² | +68 m² +78% | 2019 |
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| 13, Osborne Road480 m away | 104 m² | 167 m² | +63 m² +61% | 2021 |
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| 38, Milton Gardens288 m away | 85 m² | 147 m² | +62 m² +73% | 2022 |
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| 34, Mount Pleasant665 m away | 53 m² | 114 m² | +61 m² +115% | 2020 |
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| 1, Copse Drive877 m away | 124 m² | 184 m² | +60 m² +48% | 2017 |
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| 16, Tithe Court, Glebelands Road115 m away | 70 m² | 129 m² | +59 m² +84% | 2015 |
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| 24, Eldridge Avenue908 m away | 104 m² | 162 m² | +58 m² +56% | 2022 |
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| 16, Park Avenue626 m away | 171 m² | 227 m² | +56 m² +33% | 2015 |
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| 30, Sturges Road908 m away | 106 m² | 161 m² | +55 m² +52% | 2021 |
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| 71, London Road666 m away | 128 m² | 181 m² | +53 m² +41% | 2026 |
|---|
| 4, Barkhart Close334 m away | 48 m² | 101 m² | +53 m² +110% | 2024 |
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| 56, Sewell Avenue932 m away | 62 m² | 114 m² | +52 m² +84% | 2023 |
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| 8, Crescent Road892 m away | 298 m² | 349 m² | +51 m² +17% | 2019 |
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| 31, Easthampstead Road821 m away | 60 m² | 111 m² | +51 m² +85% | 2018 |
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| 25, The Terrace386 m away | 246 m² | 295 m² | +49 m² +20% | 2023 |
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| 31, Sturges Road924 m away | 265 m² | 313 m² | +48 m² +18% | 2019 |
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| Baycroft, Oxford Road888 m away | 182 m² | 229 m² | +47 m² +26% | 2022 |
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| 28, Copse Drive852 m away | 176 m² | 223 m² | +47 m² +27% | 2020 |
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| 7, Ashridge Road926 m away | 79 m² | 124 m² | +45 m² +57% | 2016 |
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| 21, Denton Road725 m away | 125 m² | 169 m² | +44 m² +35% | 2017 |
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| 22, Crutchley Road593 m away | 99 m² | 142 m² | +43 m² +43% | 2026 |
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| 35, Rectory Road344 m away | 197 m² | 238 m² | +41 m² +21% | 2020 |
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| 49, London Road666 m away | 95 m² | 135 m² | +40 m² +42% | 2025 |
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| 38, Barkham Road791 m away | 114 m² | 154 m² | +40 m² +35% | 2025 |
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| 8, Lily Court, Havelock Road689 m away | 44 m² | 83 m² | +39 m² +89% | 2024 |
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| 43, Sewell Avenue922 m away | 127 m² | 166 m² | +39 m² +31% | 2024 |
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| 2, Osborne Road480 m away | 99 m² | 138 m² | +39 m² +39% | 2015 |
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| 4, All Saints Close355 m away | 59 m² | 98 m² | +39 m² +66% | 2009 |
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| 7, Albert Road697 m away | 84 m² | 122 m² | +38 m² +45% | 2015 |
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| The White House, 72a, Easthampstead Road957 m away | 245 m² | 282 m² | +37 m² +15% | 2026 |
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| 87, London Road666 m away | 119 m² | 155 m² | +36 m² +30% | 2011 |
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| 13, Howard Road830 m away | 89 m² | 123 m² | +34 m² +38% | 2021 |
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| 36, Easthampstead Road697 m away | 55 m² | 88 m² | +33 m² +60% | 2025 |
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| 4, Hazylwood989 m away | 105 m² | 138 m² | +33 m² +31% | 2025 |
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| 6, Shute End431 m away | 155 m² | 187 m² | +32 m² +21% | 2025 |
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| 25, Benning Way780 m away | 110 m² | 142 m² | +32 m² +29% | 2019 |
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| 1, Havelock Road783 m away | 74 m² | 105 m² | +31 m² +42% | 2023 |
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| 42, Deacon Close512 m away | 81 m² | 111 m² | +30 m² +37% | 2019 |
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| 21a, The Terrace386 m away | 40 m² | 70 m² | +30 m² +75% | 2012 |
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| 5, Wescott Road778 m away | 76 m² | 105 m² | +29 m² +38% | 2022 |
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| 10, Mount Pleasant665 m away | 47 m² | 76 m² | +29 m² +62% | 2018 |
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| 13, Ashridge Road926 m away | 51 m² | 80 m² | +29 m² +57% | 2011 |
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| 4, Lily Court, Havelock Road689 m away | 44 m² | 72 m² | +28 m² +64% | 2023 |
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| 29, Orchard Close917 m away | 56 m² | 84 m² | +28 m² +50% | 2021 |
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| 8, Cheeseman Close597 m away | 81 m² | 109 m² | +28 m² +35% | 2016 |
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| 23, Goodchild Road865 m away | 91 m² | 118 m² | +27 m² +30% | 2018 |
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| 8, Barkham Road791 m away | 103 m² | 129 m² | +26 m² +25% | 2020 |
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| 33, St Pauls Gate738 m away | 77 m² | 102 m² | +25 m² +32% | 2026 |
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| 21, Goodchild Road865 m away | 75 m² | 100 m² | +25 m² +33% | 2025 |
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| 117, Outfield Crescent846 m away | 75 m² | 100 m² | +25 m² +33% | 2024 |
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| 112, Oxford Road887 m away | 130 m² | 155 m² | +25 m² +19% | 2015 |
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| 60, Rose Street500 m away | 76 m² | 101 m² | +25 m² +33% | 2012 |
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| 54, Langborough Road896 m away | 114 m² | 138 m² | +24 m² +21% | 2018 |
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| 6, Clifton Road878 m away | 123 m² | 147 m² | +24 m² +20% | 2016 |
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| 206, Clifton Road708 m away | 76 m² | 100 m² | +24 m² +32% | 2014 |
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| 5, Lily Court, Havelock Road689 m away | 44 m² | 67 m² | +23 m² +52% | 2024 |
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| 8, Rose Gardens447 m away | 61 m² | 84 m² | +23 m² +38% | 2016 |
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| 74, Norreys Avenue643 m away | 73 m² | 96 m² | +23 m² +32% | 2012 |
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| 50, Ellison Way546 m away | 37 m² | 59 m² | +22 m² +59% | 2026 |
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| Flat 1, 44, Finchampstead Road991 m away | 44 m² | 66 m² | +22 m² +50% | 2025 |
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| 30, Academy House, Woolf Drive0 m away | 73 m² | 95 m² | +22 m² +30% | 2024 |
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| 3, Highfield Close211 m away | 82 m² | 104 m² | +22 m² +27% | 2024 |
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| 6, Bishops Drive381 m away | 143 m² | 165 m² | +22 m² +15% | 2024 |
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| 21, Herd Drive964 m away | 65 m² | 87 m² | +22 m² +34% | 2020 |
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| 6, Crutchley Road593 m away | 90 m² | 112 m² | +22 m² +24% | 2016 |
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| 6, Havelock Road783 m away | 72 m² | 93 m² | +21 m² +29% | 2026 |
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| 7, Rectory Close382 m away | 92 m² | 112 m² | +20 m² +22% | 2024 |
|---|
| 23, Howard Road830 m away | 61 m² | 81 m² | +20 m² +33% | 2021 |
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| 34, Sarum Crescent674 m away | 104 m² | 124 m² | +20 m² +19% | 2020 |
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| 79, London Road666 m away | 126 m² | 146 m² | +20 m² +16% | 2019 |
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| 21, Seaford Road868 m away | 73 m² | 93 m² | +20 m² +27% | 2019 |
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| 31, Benning Way780 m away | 113 m² | 133 m² | +20 m² +18% | 2018 |
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| 67, Peach Street633 m away | 60 m² | 80 m² | +20 m² +33% | 2016 |
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| 11, Oxford Road702 m away | 83 m² | 103 m² | +20 m² +24% | 2014 |
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| 12, Howard Road830 m away | 75 m² | 94 m² | +19 m² +25% | 2026 |
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| 18, Howard Road830 m away | 115 m² | 134 m² | +19 m² +17% | 2023 |
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| 56, Wescott Road750 m away | 74 m² | 93 m² | +19 m² +26% | 2020 |
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| 3, Bell House Gardens489 m away | 70 m² | 89 m² | +19 m² +27% | 2019 |
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| 40, Langborough Road896 m away | 81 m² | 100 m² | +19 m² +23% | 2019 |
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| 61, Sewell Avenue922 m away | 62 m² | 81 m² | +19 m² +31% | 2016 |
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| 23, Marks Road937 m away | 85 m² | 103 m² | +18 m² +21% | 2023 |
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| 12, Goodchild Road865 m away | 87 m² | 105 m² | +18 m² +21% | 2022 |
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| 32, Banbury Close787 m away | 73 m² | 91 m² | +18 m² +25% | 2012 |
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| 37, Shefford Crescent815 m away | 109 m² | 126 m² | +17 m² +16% | 2026 |
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| 56, Valley Crescent978 m away | 91 m² | 108 m² | +17 m² +19% | 2026 |
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| 15, Osborne Road480 m away | 113 m² | 130 m² | +17 m² +15% | 2023 |
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| 115, Oxford Road838 m away | 89 m² | 106 m² | +17 m² +19% | 2023 |
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| 48, Valley Crescent978 m away | 71 m² | 88 m² | +17 m² +24% | 2021 |
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| 33a, Peach Street637 m away | 62 m² | 79 m² | +17 m² +27% | 2020 |
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| 18, Easthampstead Road697 m away | 64 m² | 81 m² | +17 m² +27% | 2020 |
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| 62, Shefford Crescent815 m away | 85 m² | 102 m² | +17 m² +20% | 2020 |
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| 52, Howard Road830 m away | 102 m² | 119 m² | +17 m² +17% | 2019 |
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| 38, Headington Drive706 m away | 111 m² | 128 m² | +17 m² +15% | 2016 |
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| 15, Shefford Crescent815 m away | 110 m² | 127 m² | +17 m² +15% | 2015 |
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| 2, Norton Road878 m away | 55 m² | 72 m² | +17 m² +31% | 2012 |
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| 5, Langborough Road907 m away | 73 m² | 89 m² | +16 m² +22% | 2024 |
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| 29, Gipsy Lane945 m away | 83 m² | 99 m² | +16 m² +19% | 2022 |
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| 5, Rose Court478 m away | 40 m² | 56 m² | +16 m² +40% | 2021 |
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| 12, Orchard Close917 m away | 57 m² | 73 m² | +16 m² +28% | 2020 |
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| 25, Herd Drive964 m away | 71 m² | 87 m² | +16 m² +23% | 2020 |
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| 19, All Saints Close355 m away | 99 m² | 115 m² | +16 m² +16% | 2018 |
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| 25, Poppy Place288 m away | 75 m² | 90 m² | +15 m² +20% | 2026 |
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| 23, Herd Drive964 m away | 72 m² | 87 m² | +15 m² +21% | 2020 |
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| 54a, Meadow Road967 m away | 65 m² | 80 m² | +15 m² +23% | 2018 |
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| 13b, Fairview Road1000 m away | 39 m² | 54 m² | +15 m² +38% | 2017 |
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| 108, Copse Drive852 m away | 84 m² | 99 m² | +15 m² +18% | 2016 |
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