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 6JJ
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 Road895 m away | 395 m² | 666 m² | +271 m² +69% | 2024 |
| 274, Totteridge Road606 m away | 106 m² | 234 m² | +128 m² +121% | 2015 |
| 71, Tyzack Road526 m away | 81 m² | 191 m² | +110 m² +136% | 2022 |
| 12, North Drive229 m away | 71 m² | 167 m² | +96 m² +135% | 2020 |
| 106, Hatters Lane934 m away | 132 m² | 227 m² | +95 m² +72% | 2025 |
| 135, Totteridge Lane722 m away | 90 m² | 181 m² | +91 m² +101% | 2014 |
| 7, Kingswood Place476 m away | 93 m² | 177 m² | +84 m² +90% | 2025 |
| 2, Philip Road895 m away | 61 m² | 144 m² | +83 m² +136% | 2014 |
| 36, Amersham Hill Drive829 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.
| 171 m² |
| 244 m² |
| +73 m² +43% |
| 2022 |
| 12a, Terry Road973 m away | 102 m² | 172 m² | +70 m² +69% | 2016 |
|---|
| 230, Hatters Lane413 m away | 85 m² | 150 m² | +65 m² +76% | 2019 |
|---|
| 58, Magnolia Dene878 m away | 220 m² | 285 m² | +65 m² +30% | 2015 |
|---|
| 1, Hollybrook Way353 m away | 136 m² | 196 m² | +60 m² +44% | 2024 |
|---|
| 7, De Pirenore716 m away | 205 m² | 262 m² | +57 m² +28% | 2023 |
|---|
| 3, Totteridge Drive148 m away | 89 m² | 146 m² | +57 m² +64% | 2021 |
|---|
| 28, Kingston Road407 m away | 90 m² | 147 m² | +57 m² +63% | 2014 |
|---|
| 43, Walton Drive165 m away | 101 m² | 154 m² | +53 m² +52% | 2015 |
|---|
| 57, Tower Street949 m away | 82 m² | 133 m² | +51 m² +62% | 2026 |
|---|
| 13, Mayhew Crescent721 m away | 97 m² | 148 m² | +51 m² +53% | 2017 |
|---|
| 5, Tower Street947 m away | 76 m² | 125 m² | +49 m² +64% | 2023 |
|---|
| 71, Cambridge Crescent685 m away | 82 m² | 130 m² | +48 m² +59% | 2014 |
|---|
| 39, Rowan Avenue758 m away | 71 m² | 118 m² | +47 m² +66% | 2016 |
|---|
| 15, South Drive498 m away | 82 m² | 129 m² | +47 m² +57% | 2015 |
|---|
| 38, Chippendale Close653 m away | 94 m² | 140 m² | +46 m² +49% | 2014 |
|---|
| 20, Underwood Road984 m away | 74 m² | 120 m² | +46 m² +62% | 2013 |
|---|
| 11, Keens Close156 m away | 82 m² | 126 m² | +44 m² +54% | 2018 |
|---|
| 220, Totteridge Road786 m away | 100 m² | 143 m² | +43 m² +43% | 2024 |
|---|
| 26, Amersham Road918 m away | 256 m² | 298 m² | +42 m² +16% | 2026 |
|---|
| 2, Hollis Road438 m away | 90 m² | 132 m² | +42 m² +47% | 2016 |
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| 65, Nicholas Gardens576 m away | 57 m² | 99 m² | +42 m² +74% | 2015 |
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| 219, Hatters Lane413 m away | 58 m² | 100 m² | +42 m² +72% | 2011 |
|---|
| 19, Milton Place713 m away | 86 m² | 127 m² | +41 m² +48% | 2020 |
|---|
| 242, Totteridge Road606 m away | 77 m² | 118 m² | +41 m² +53% | 2019 |
|---|
| 217, Hatters Lane413 m away | 66 m² | 106 m² | +40 m² +61% | 2024 |
|---|
| 20, Sussex Close477 m away | 94 m² | 134 m² | +40 m² +43% | 2024 |
|---|
| 265, Totteridge Road608 m away | 74 m² | 114 m² | +40 m² +54% | 2024 |
|---|
| 26, Fremantle Road646 m away | 108 m² | 148 m² | +40 m² +37% | 2015 |
|---|
| 270, Bowerdean Road636 m away | 80 m² | 120 m² | +40 m² +50% | 2013 |
|---|
| 7, The Quadrant161 m away | 81 m² | 120 m² | +39 m² +48% | 2013 |
|---|
| 6, De Pirenore716 m away | 227 m² | 264 m² | +37 m² +16% | 2026 |
|---|
| 58, Totteridge Drive238 m away | 80 m² | 117 m² | +37 m² +46% | 2025 |
|---|
| 173, Bowerdean Road919 m away | 71 m² | 108 m² | +37 m² +52% | 2025 |
|---|
| 115, Arnison Avenue765 m away | 92 m² | 129 m² | +37 m² +40% | 2021 |
|---|
| 8, Hobart Road406 m away | 104 m² | 141 m² | +37 m² +36% | 2015 |
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| 52, Amersham Hill Drive829 m away | 154 m² | 190 m² | +36 m² +23% | 2023 |
|---|
| 21, The Water Gardens832 m away | 82 m² | 118 m² | +36 m² +44% | 2021 |
|---|
| 59, Amersham Road888 m away | 144 m² | 180 m² | +36 m² +25% | 2019 |
|---|
| 31, The Quadrant161 m away | 84 m² | 120 m² | +36 m² +43% | 2016 |
|---|
| 57, Amersham Road888 m away | 98 m² | 133 m² | +35 m² +36% | 2019 |
|---|
| 104, Walton Drive473 m away | 95 m² | 130 m² | +35 m² +37% | 2014 |
|---|
| 252, Totteridge Road606 m away | 90 m² | 125 m² | +35 m² +39% | 2014 |
|---|
| 133, Underwood Road754 m away | 73 m² | 106 m² | +33 m² +45% | 2026 |
|---|
| 5, Chippendale Close620 m away | 105 m² | 138 m² | +33 m² +31% | 2025 |
|---|
| 1, Baring Road712 m away | 80 m² | 113 m² | +33 m² +41% | 2017 |
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| 310, Totteridge Road418 m away | 205 m² | 237 m² | +32 m² +16% | 2025 |
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| 54, Mayhew Crescent753 m away | 100 m² | 132 m² | +32 m² +32% | 2020 |
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| 168, Hicks Farm Rise594 m away | 95 m² | 127 m² | +32 m² +34% | 2016 |
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| 42, Amersham Hill Drive829 m away | 167 m² | 198 m² | +31 m² +19% | 2024 |
|---|
| 1, Firs Close501 m away | 87 m² | 118 m² | +31 m² +36% | 2020 |
|---|
| 3, The Crescent431 m away | 80 m² | 110 m² | +30 m² +38% | 2024 |
|---|
| 6, Hardenwaye117 m away | 146 m² | 176 m² | +30 m² +21% | 2014 |
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| 13, New Drive284 m away | 94 m² | 123 m² | +29 m² +31% | 2024 |
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| 58, Geralds Road673 m away | 97 m² | 126 m² | +29 m² +30% | 2022 |
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| 28, Linchfield944 m away | 45 m² | 74 m² | +29 m² +64% | 2016 |
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| 26, Chadwick Street974 m away | 78 m² | 106 m² | +28 m² +36% | 2026 |
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| 12, Montford Mews818 m away | 96 m² | 124 m² | +28 m² +29% | 2020 |
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| 106, Walton Drive473 m away | 77 m² | 105 m² | +28 m² +36% | 2016 |
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| 116, Walton Drive473 m away | 86 m² | 114 m² | +28 m² +33% | 2016 |
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| 81, Walton Drive165 m away | 94 m² | 121 m² | +27 m² +29% | 2015 |
|---|
| 80, Adelaide Road569 m away | 84 m² | 110 m² | +26 m² +31% | 2025 |
|---|
| 1, Hepplewhite Close771 m away | 84 m² | 110 m² | +26 m² +31% | 2024 |
|---|
| 28, Highworth Close294 m away | 107 m² | 133 m² | +26 m² +24% | 2021 |
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| 3, Adelaide Road583 m away | 113 m² | 139 m² | +26 m² +23% | 2016 |
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| 10, The Crescent431 m away | 108 m² | 132 m² | +24 m² +22% | 2024 |
|---|
| 46, Amersham Hill Drive829 m away | 151 m² | 175 m² | +24 m² +16% | 2021 |
|---|
| 10, Chadwick Street974 m away | 69 m² | 93 m² | +24 m² +35% | 2020 |
|---|
| 26, Colborne Road457 m away | 78 m² | 102 m² | +24 m² +31% | 2016 |
|---|
| 91, Gayhurst Road818 m away | 74 m² | 98 m² | +24 m² +32% | 2015 |
|---|
| 134, Amersham Road806 m away | 79 m² | 102 m² | +23 m² +29% | 2022 |
|---|
| 210, Hatters Lane635 m away | 67 m² | 90 m² | +23 m² +34% | 2021 |
|---|
| 16, Mayhew Crescent721 m away | 88 m² | 111 m² | +23 m² +26% | 2016 |
|---|
| 102, Walton Drive473 m away | 107 m² | 130 m² | +23 m² +21% | 2015 |
|---|
| 2, Potters Cross Crescent737 m away | 146 m² | 169 m² | +23 m² +16% | 2011 |
|---|
| 49, Totteridge Drive0 m away | 58 m² | 80 m² | +22 m² +38% | 2022 |
|---|
| 3, New Drive284 m away | 62 m² | 84 m² | +22 m² +35% | 2020 |
|---|
| 161, Totteridge Road927 m away | 73 m² | 95 m² | +22 m² +30% | 2017 |
|---|
| 25, Nicholas Gardens589 m away | 59 m² | 81 m² | +22 m² +37% | 2016 |
|---|
| 14, Hillary Road916 m away | 89 m² | 111 m² | +22 m² +25% | 2014 |
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| 34, West Drive356 m away | 59 m² | 81 m² | +22 m² +37% | 2013 |
|---|
| 217, Totteridge Road749 m away | 72 m² | 93 m² | +21 m² +29% | 2026 |
|---|
| 32, North Drive229 m away | 87 m² | 108 m² | +21 m² +24% | 2023 |
|---|
| 76, Underwood Road754 m away | 73 m² | 94 m² | +21 m² +29% | 2017 |
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| 346, Micklefield Road842 m away | 80 m² | 101 m² | +21 m² +26% | 2016 |
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| 1, Hobart Road406 m away | 98 m² | 119 m² | +21 m² +21% | 2015 |
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| 97, Windsor Drive834 m away | 36 m² | 57 m² | +21 m² +58% | 2014 |
|---|
| 6, The Crescent431 m away | 92 m² | 112 m² | +20 m² +22% | 2025 |
|---|
| 4, Hepplewhite Close771 m away | 80 m² | 100 m² | +20 m² +25% | 2024 |
|---|
| 15, Nicholas Gardens589 m away | 56 m² | 76 m² | +20 m² +36% | 2016 |
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| 9, Elora Road628 m away | 89 m² | 109 m² | +20 m² +22% | 2013 |
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| 142, Hatters Lane934 m away | 86 m² | 106 m² | +20 m² +23% | 2011 |
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| 77, Amersham Road888 m away | 77 m² | 96 m² | +19 m² +25% | 2026 |
|---|
| 22, Salisbury Road441 m away | 103 m² | 122 m² | +19 m² +18% | 2016 |
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| 56, Nicholas Gardens576 m away | 61 m² | 80 m² | +19 m² +31% | 2016 |
|---|
| 15, Sussex Close477 m away | 80 m² | 98 m² | +18 m² +23% | 2024 |
|---|
| 87, Mayhew Crescent753 m away | 88 m² | 106 m² | +18 m² +20% | 2024 |
|---|
| 65a, Amersham Road888 m away | 22 m² | 40 m² | +18 m² +82% | 2024 |
|---|
| 79, Hicks Farm Rise930 m away | 78 m² | 96 m² | +18 m² +23% | 2019 |
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| 246, Totteridge Road606 m away | 89 m² | 107 m² | +18 m² +20% | 2018 |
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| 57, Tyzack Road526 m away | 84 m² | 102 m² | +18 m² +21% | 2016 |
|---|
| 160a, Amersham Road822 m away | 77 m² | 95 m² | +18 m² +23% | 2015 |
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| 72, Totteridge Drive238 m away | 79 m² | 96 m² | +17 m² +22% | 2022 |
|---|
| 21, Hillview Road481 m away | 72 m² | 89 m² | +17 m² +24% | 2016 |
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| 32, Chadwick Street974 m away | 77 m² | 94 m² | +17 m² +22% | 2015 |
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| 69, Woodside Road814 m away | 82 m² | 99 m² | +17 m² +21% | 2014 |
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| 23, Underwood Road984 m away | 100 m² | 117 m² | +17 m² +17% | 2014 |
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| 31, Rowan Avenue758 m away | 74 m² | 90 m² | +16 m² +22% | 2023 |
|---|
| 31, Hillview Road481 m away | 80 m² | 96 m² | +16 m² +20% | 2022 |
|---|
| 21, Denewood, Totteridge Road482 m away | 68 m² | 84 m² | +16 m² +24% | 2021 |
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| 21, Elora Road628 m away | 79 m² | 95 m² | +16 m² +20% | 2019 |
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| 42, Lyndon Gardens233 m away | 96 m² | 112 m² | +16 m² +17% | 2015 |
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| 4, Hollis Road438 m away | 92 m² | 107 m² | +15 m² +16% | 2022 |
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| 68, Linchfield801 m away | 44 m² | 59 m² | +15 m² +34% | 2020 |
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