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 HP13 6BJ
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 |
|---|---|---|---|---|
| Cedar House, Amersham Road744 m away | 395 m² | 666 m² | +271 m² +69% | 2024 |
| 4, Overleigh Court, Amersham Road668 m away | 103 m² | 242 m² | +139 m² +135% | 2015 |
| 75, Brands Hill Avenue539 m away | 111 m² | 234 m² | +123 m² +111% | 2015 |
| 71, Tyzack Road892 m away | 81 m² | 191 m² | +110 m² +136% | 2022 |
| 12, North Drive674 m away | 71 m² | 167 m² | +96 m² +135% | 2020 |
| 135, Totteridge Lane558 m away | 90 m² | 181 m² | +91 m² +101% | 2014 |
| 85, Hamilton Road448 m away | 160 m² | 250 m² | +90 m² +56% | 2020 |
| 50, Wellesbourne Crescent631 m away | 68 m² | 154 m² | +86 m² +126% | 2012 |
| 7, Kingswood Place |
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.
| 93 m² |
| 177 m² |
| +84 m² +90% |
| 2025 |
| 113, Brands Hill Avenue683 m away | 137 m² | 211 m² | +74 m² +54% | 2015 |
|---|
| 36, Amersham Hill Drive420 m away | 171 m² | 244 m² | +73 m² +43% | 2022 |
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| 45, Hamilton Road678 m away | 108 m² | 180 m² | +72 m² +67% | 2018 |
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| 12a, Terry Road716 m away | 102 m² | 172 m² | +70 m² +69% | 2016 |
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| 6, Green Hill Close540 m away | 140 m² | 205 m² | +65 m² +46% | 2014 |
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| 29, Coningsby Road994 m away | 100 m² | 162 m² | +62 m² +62% | 2026 |
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| 22, Brands Hill Avenue421 m away | 146 m² | 206 m² | +60 m² +41% | 2024 |
|---|
| 1, Hollybrook Way845 m away | 136 m² | 196 m² | +60 m² +44% | 2024 |
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| 21, Coningsby Road994 m away | 84 m² | 143 m² | +59 m² +70% | 2026 |
|---|
| 56, Brands Hill Avenue507 m away | 162 m² | 221 m² | +59 m² +36% | 2016 |
|---|
| Bellworthy, Lawsone Rise778 m away | 59 m² | 118 m² | +59 m² +100% | 2015 |
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| 7, De Pirenore893 m away | 205 m² | 262 m² | +57 m² +28% | 2023 |
|---|
| 3, Totteridge Drive953 m away | 89 m² | 146 m² | +57 m² +64% | 2021 |
|---|
| 28, Kingston Road485 m away | 90 m² | 147 m² | +57 m² +63% | 2014 |
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| 43, Walton Drive644 m away | 101 m² | 154 m² | +53 m² +52% | 2015 |
|---|
| Hamilton House, Ridge Way346 m away | 242 m² | 294 m² | +52 m² +21% | 2024 |
|---|
| 57, Tower Street392 m away | 82 m² | 133 m² | +51 m² +62% | 2026 |
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| 13, Mayhew Crescent534 m away | 97 m² | 148 m² | +51 m² +53% | 2017 |
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| 5, Tower Street318 m away | 76 m² | 125 m² | +49 m² +64% | 2023 |
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| 39, Rowan Avenue965 m away | 71 m² | 118 m² | +47 m² +66% | 2016 |
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| 15, South Drive800 m away | 82 m² | 129 m² | +47 m² +57% | 2015 |
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| 38, Chippendale Close176 m away | 94 m² | 140 m² | +46 m² +49% | 2014 |
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| 20, Underwood Road997 m away | 74 m² | 120 m² | +46 m² +62% | 2013 |
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| 69, Green Road444 m away | 95 m² | 140 m² | +45 m² +47% | 2025 |
|---|
| 31, Hamilton Road678 m away | 157 m² | 201 m² | +44 m² +28% | 2022 |
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| 11, Keens Close932 m away | 82 m² | 126 m² | +44 m² +54% | 2018 |
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| 26, Amersham Road380 m away | 256 m² | 298 m² | +42 m² +16% | 2026 |
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| 42, Maybrook Gardens840 m away | 157 m² | 199 m² | +42 m² +27% | 2023 |
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| 65, Nicholas Gardens893 m away | 57 m² | 99 m² | +42 m² +74% | 2015 |
|---|
| 19, Milton Place468 m away | 86 m² | 127 m² | +41 m² +48% | 2020 |
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| 20, Sussex Close377 m away | 94 m² | 134 m² | +40 m² +43% | 2024 |
|---|
| 26, Fremantle Road477 m away | 108 m² | 148 m² | +40 m² +37% | 2015 |
|---|
| 270, Bowerdean Road630 m away | 80 m² | 120 m² | +40 m² +50% | 2013 |
|---|
| 7, The Quadrant708 m away | 81 m² | 120 m² | +39 m² +48% | 2013 |
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| 6, De Pirenore893 m away | 227 m² | 264 m² | +37 m² +16% | 2026 |
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| 58, Totteridge Drive584 m away | 80 m² | 117 m² | +37 m² +46% | 2025 |
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| 115, Arnison Avenue75 m away | 92 m² | 129 m² | +37 m² +40% | 2021 |
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| 8, Hobart Road402 m away | 104 m² | 141 m² | +37 m² +36% | 2015 |
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| 186, Hughenden Road959 m away | 115 m² | 151 m² | +36 m² +31% | 2026 |
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| 52, Amersham Hill Drive420 m away | 154 m² | 190 m² | +36 m² +23% | 2023 |
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| The Cedars, Foxhill Close681 m away | 110 m² | 146 m² | +36 m² +33% | 2021 |
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| 21, The Water Gardens960 m away | 82 m² | 118 m² | +36 m² +44% | 2021 |
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| 59, Amersham Road106 m away | 144 m² | 180 m² | +36 m² +25% | 2019 |
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| 31, The Quadrant708 m away | 84 m² | 120 m² | +36 m² +43% | 2016 |
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| 57, Amersham Road106 m away | 98 m² | 133 m² | +35 m² +36% | 2019 |
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| 20, Brands Hill Avenue421 m away | 118 m² | 153 m² | +35 m² +30% | 2015 |
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| 104, Walton Drive352 m away | 95 m² | 130 m² | +35 m² +37% | 2014 |
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| 133, Underwood Road741 m away | 73 m² | 106 m² | +33 m² +45% | 2026 |
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| 5, Chippendale Close198 m away | 105 m² | 138 m² | +33 m² +31% | 2025 |
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| 54, Mayhew Crescent459 m away | 100 m² | 132 m² | +32 m² +32% | 2020 |
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| 42, Amersham Hill Drive420 m away | 167 m² | 198 m² | +31 m² +19% | 2024 |
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| 6, Amersham Road830 m away | 156 m² | 187 m² | +31 m² +20% | 2024 |
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| 3, The Crescent954 m away | 80 m² | 110 m² | +30 m² +38% | 2024 |
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| 6, Hardenwaye882 m away | 146 m² | 176 m² | +30 m² +21% | 2014 |
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| 13, New Drive804 m away | 94 m² | 123 m² | +29 m² +31% | 2024 |
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| 58, Geralds Road264 m away | 97 m² | 126 m² | +29 m² +30% | 2022 |
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| 26, Chadwick Street280 m away | 78 m² | 106 m² | +28 m² +36% | 2026 |
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| 2, Coningsby Road994 m away | 89 m² | 117 m² | +28 m² +31% | 2021 |
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| 12, Montford Mews796 m away | 96 m² | 124 m² | +28 m² +29% | 2020 |
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| 106, Walton Drive352 m away | 77 m² | 105 m² | +28 m² +36% | 2016 |
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| 116, Walton Drive352 m away | 86 m² | 114 m² | +28 m² +33% | 2016 |
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| 81, Walton Drive644 m away | 94 m² | 121 m² | +27 m² +29% | 2015 |
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| 80, Adelaide Road240 m away | 84 m² | 110 m² | +26 m² +31% | 2025 |
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| 1, Hepplewhite Close677 m away | 84 m² | 110 m² | +26 m² +31% | 2024 |
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| 28, Highworth Close712 m away | 107 m² | 133 m² | +26 m² +24% | 2021 |
|---|
| 3, Adelaide Road428 m away | 113 m² | 139 m² | +26 m² +23% | 2016 |
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| 4, Amersham Hill Gardens597 m away | 163 m² | 189 m² | +26 m² +16% | 2014 |
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| 10, The Crescent954 m away | 108 m² | 132 m² | +24 m² +22% | 2024 |
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| 46, Amersham Hill Drive420 m away | 151 m² | 175 m² | +24 m² +16% | 2021 |
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| 10, Chadwick Street280 m away | 69 m² | 93 m² | +24 m² +35% | 2020 |
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| 26, Colborne Road646 m away | 78 m² | 102 m² | +24 m² +31% | 2016 |
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| 134, Amersham Road264 m away | 79 m² | 102 m² | +23 m² +29% | 2022 |
|---|
| 16, Mayhew Crescent534 m away | 88 m² | 111 m² | +23 m² +26% | 2016 |
|---|
| 73, Hamilton Road678 m away | 139 m² | 162 m² | +23 m² +17% | 2016 |
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| 102, Walton Drive352 m away | 107 m² | 130 m² | +23 m² +21% | 2015 |
|---|
| 2, Potters Cross Crescent809 m away | 146 m² | 169 m² | +23 m² +16% | 2011 |
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| 49, Totteridge Drive808 m away | 58 m² | 80 m² | +22 m² +38% | 2022 |
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| 43, Kingshill Crescent647 m away | 128 m² | 150 m² | +22 m² +17% | 2021 |
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| 3, New Drive804 m away | 62 m² | 84 m² | +22 m² +35% | 2020 |
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| 25, Nicholas Gardens841 m away | 59 m² | 81 m² | +22 m² +37% | 2016 |
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| 34, West Drive730 m away | 59 m² | 81 m² | +22 m² +37% | 2013 |
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| 14, Glynswood908 m away | 100 m² | 121 m² | +21 m² +21% | 2026 |
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| 32, North Drive674 m away | 87 m² | 108 m² | +21 m² +24% | 2023 |
|---|
| 1, Wellesbourne Gardens375 m away | 72 m² | 93 m² | +21 m² +29% | 2022 |
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| 76, Underwood Road741 m away | 73 m² | 94 m² | +21 m² +29% | 2017 |
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| 1, Hobart Road402 m away | 98 m² | 119 m² | +21 m² +21% | 2015 |
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| 10, Dunwood Rise738 m away | 57 m² | 78 m² | +21 m² +37% | 2015 |
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| 97, Windsor Drive94 m away | 36 m² | 57 m² | +21 m² +58% | 2014 |
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| 6, The Crescent954 m away | 92 m² | 112 m² | +20 m² +22% | 2025 |
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| 4, Hepplewhite Close677 m away | 80 m² | 100 m² | +20 m² +25% | 2024 |
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| 12, Maybrook Gardens840 m away | 78 m² | 98 m² | +20 m² +26% | 2022 |
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| 15, Nicholas Gardens841 m away | 56 m² | 76 m² | +20 m² +36% | 2016 |
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| 77, Amersham Road106 m away | 77 m² | 96 m² | +19 m² +25% | 2026 |
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| 22, Salisbury Road409 m away | 103 m² | 122 m² | +19 m² +18% | 2016 |
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| 56, Nicholas Gardens893 m away | 61 m² | 80 m² | +19 m² +31% | 2016 |
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| Flat 7, Hillcrest, Shrubbery Road999 m away | 60 m² | 79 m² | +19 m² +32% | 2014 |
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| 65a, Amersham Road106 m away | 22 m² | 40 m² | +18 m² +82% | 2024 |
|---|
| 15, Sussex Close377 m away | 80 m² | 98 m² | +18 m² +23% | 2024 |
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| 87, Mayhew Crescent459 m away | 88 m² | 106 m² | +18 m² +20% | 2024 |
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| 57, Tyzack Road892 m away | 84 m² | 102 m² | +18 m² +21% | 2016 |
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| 160a, Amersham Road416 m away | 77 m² | 95 m² | +18 m² +23% | 2015 |
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| 72, Totteridge Drive584 m away | 79 m² | 96 m² | +17 m² +22% | 2022 |
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| 21, Hillview Road585 m away | 72 m² | 89 m² | +17 m² +24% | 2016 |
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| 32, Chadwick Street280 m away | 77 m² | 94 m² | +17 m² +22% | 2015 |
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| 17, Dunwood Rise738 m away | 70 m² | 87 m² | +17 m² +24% | 2015 |
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| 23, Underwood Road997 m away | 100 m² | 117 m² | +17 m² +17% | 2014 |
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| 31, Rowan Avenue965 m away | 74 m² | 90 m² | +16 m² +22% | 2023 |
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| 31, Hillview Road585 m away | 80 m² | 96 m² | +16 m² +20% | 2022 |
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| 42, Lyndon Gardens953 m away | 96 m² | 112 m² | +16 m² +17% | 2015 |
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| 3, Coningsby Court997 m away | 41 m² | 56 m² | +15 m² +37% | 2021 |
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| Lily Cottage, 192, Hughenden Road959 m away | 42 m² | 57 m² | +15 m² +36% | 2009 |
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