Finding extended homes…
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Sign in to keep them on every device →Finding extended homes…
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 6UN
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 Road844 m away | 395 m² | 666 m² | +271 m² +69% | 2024 |
| 14, Lucas Road875 m away | 334 m² | 604 m² | +270 m² +81% | 2018 |
| 4, Overleigh Court, Amersham Road686 m away | 103 m² | 242 m² | +139 m² +135% | 2015 |
| 274, Totteridge Road744 m away | 106 m² | 234 m² | +128 m² +121% | 2015 |
| 75, Brands Hill Avenue905 m away | 111 m² | 234 m² | +123 m² +111% | 2015 |
| 71, Tyzack Road756 m away | 81 m² | 191 m² | +110 m² +136% | 2022 |
| 12, North Drive303 m away | 71 m² | 167 m² | +96 m² +135% | 2020 |
| 135, Totteridge Lane628 m away | 90 m² | 181 m² | +91 m² +101% | 2014 |
| 85, Hamilton Road671 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.
| 160 m² |
| 250 m² |
| +90 m² +56% |
| 2020 |
| 50, Wellesbourne Crescent957 m away | 68 m² | 154 m² | +86 m² +126% | 2012 |
|---|
| 7, Kingswood Place484 m away | 93 m² | 177 m² | +84 m² +90% | 2025 |
|---|
| 2, Philip Road868 m away | 61 m² | 144 m² | +83 m² +136% | 2014 |
|---|
| 36, Amersham Hill Drive380 m away | 171 m² | 244 m² | +73 m² +43% | 2022 |
|---|
| 45, Hamilton Road865 m away | 108 m² | 180 m² | +72 m² +67% | 2018 |
|---|
| 12a, Terry Road606 m away | 102 m² | 172 m² | +70 m² +69% | 2016 |
|---|
| 230, Hatters Lane770 m away | 85 m² | 150 m² | +65 m² +76% | 2019 |
|---|
| 6, Green Hill Close853 m away | 140 m² | 205 m² | +65 m² +46% | 2014 |
|---|
| 1, Hollybrook Way642 m away | 136 m² | 196 m² | +60 m² +44% | 2024 |
|---|
| 22, Brands Hill Avenue798 m away | 146 m² | 206 m² | +60 m² +41% | 2024 |
|---|
| 56, Brands Hill Avenue848 m away | 162 m² | 221 m² | +59 m² +36% | 2016 |
|---|
| Bellworthy, Lawsone Rise990 m away | 59 m² | 118 m² | +59 m² +100% | 2015 |
|---|
| 7, De Pirenore848 m away | 205 m² | 262 m² | +57 m² +28% | 2023 |
|---|
| 3, Totteridge Drive624 m away | 89 m² | 146 m² | +57 m² +64% | 2021 |
|---|
| 28, Kingston Road108 m away | 90 m² | 147 m² | +57 m² +63% | 2014 |
|---|
| 43, Walton Drive330 m away | 101 m² | 154 m² | +53 m² +52% | 2015 |
|---|
| Hamilton House, Ridge Way655 m away | 242 m² | 294 m² | +52 m² +21% | 2024 |
|---|
| 57, Tower Street666 m away | 82 m² | 133 m² | +51 m² +62% | 2026 |
|---|
| 13, Mayhew Crescent343 m away | 97 m² | 148 m² | +51 m² +53% | 2017 |
|---|
| 5, Tower Street624 m away | 76 m² | 125 m² | +49 m² +64% | 2023 |
|---|
| 71, Cambridge Crescent947 m away | 82 m² | 130 m² | +48 m² +59% | 2014 |
|---|
| 39, Rowan Avenue658 m away | 71 m² | 118 m² | +47 m² +66% | 2016 |
|---|
| 15, South Drive446 m away | 82 m² | 129 m² | +47 m² +57% | 2015 |
|---|
| 38, Chippendale Close202 m away | 94 m² | 140 m² | +46 m² +49% | 2014 |
|---|
| 20, Underwood Road770 m away | 74 m² | 120 m² | +46 m² +62% | 2013 |
|---|
| 69, Green Road768 m away | 95 m² | 140 m² | +45 m² +47% | 2025 |
|---|
| 31, Hamilton Road865 m away | 157 m² | 201 m² | +44 m² +28% | 2022 |
|---|
| 11, Keens Close623 m away | 82 m² | 126 m² | +44 m² +54% | 2018 |
|---|
| 220, Totteridge Road783 m away | 100 m² | 143 m² | +43 m² +43% | 2024 |
|---|
| 26, Amersham Road449 m away | 256 m² | 298 m² | +42 m² +16% | 2026 |
|---|
| 42, Maybrook Gardens785 m away | 157 m² | 199 m² | +42 m² +27% | 2023 |
|---|
| 2, Hollis Road822 m away | 90 m² | 132 m² | +42 m² +47% | 2016 |
|---|
| 65, Nicholas Gardens546 m away | 57 m² | 99 m² | +42 m² +74% | 2015 |
|---|
| 219, Hatters Lane770 m away | 58 m² | 100 m² | +42 m² +72% | 2011 |
|---|
| 19, Milton Place562 m away | 86 m² | 127 m² | +41 m² +48% | 2020 |
|---|
| 242, Totteridge Road744 m away | 77 m² | 118 m² | +41 m² +53% | 2019 |
|---|
| 20, Sussex Close0 m away | 94 m² | 134 m² | +40 m² +43% | 2024 |
|---|
| 265, Totteridge Road717 m away | 74 m² | 114 m² | +40 m² +54% | 2024 |
|---|
| 217, Hatters Lane770 m away | 66 m² | 106 m² | +40 m² +61% | 2024 |
|---|
| 26, Fremantle Road523 m away | 108 m² | 148 m² | +40 m² +37% | 2015 |
|---|
| 270, Bowerdean Road353 m away | 80 m² | 120 m² | +40 m² +50% | 2013 |
|---|
| 7, The Quadrant431 m away | 81 m² | 120 m² | +39 m² +48% | 2013 |
|---|
| 6, De Pirenore848 m away | 227 m² | 264 m² | +37 m² +16% | 2026 |
|---|
| 58, Totteridge Drive239 m away | 80 m² | 117 m² | +37 m² +46% | 2025 |
|---|
| 173, Bowerdean Road757 m away | 71 m² | 108 m² | +37 m² +52% | 2025 |
|---|
| 115, Arnison Avenue364 m away | 92 m² | 129 m² | +37 m² +40% | 2021 |
|---|
| 8, Hobart Road143 m away | 104 m² | 141 m² | +37 m² +36% | 2015 |
|---|
| 52, Amersham Hill Drive380 m away | 154 m² | 190 m² | +36 m² +23% | 2023 |
|---|
| The Cedars, Foxhill Close882 m away | 110 m² | 146 m² | +36 m² +33% | 2021 |
|---|
| 21, The Water Gardens947 m away | 82 m² | 118 m² | +36 m² +44% | 2021 |
|---|
| 59, Amersham Road477 m away | 144 m² | 180 m² | +36 m² +25% | 2019 |
|---|
| 31, The Quadrant431 m away | 84 m² | 120 m² | +36 m² +43% | 2016 |
|---|
| 57, Amersham Road477 m away | 98 m² | 133 m² | +35 m² +36% | 2019 |
|---|
| 20, Brands Hill Avenue798 m away | 118 m² | 153 m² | +35 m² +30% | 2015 |
|---|
| 104, Walton Drive219 m away | 95 m² | 130 m² | +35 m² +37% | 2014 |
|---|
| 252, Totteridge Road744 m away | 90 m² | 125 m² | +35 m² +39% | 2014 |
|---|
| 133, Underwood Road493 m away | 73 m² | 106 m² | +33 m² +45% | 2026 |
|---|
| 5, Chippendale Close180 m away | 105 m² | 138 m² | +33 m² +31% | 2025 |
|---|
| 310, Totteridge Road694 m away | 205 m² | 237 m² | +32 m² +16% | 2025 |
|---|
| 54, Mayhew Crescent329 m away | 100 m² | 132 m² | +32 m² +32% | 2020 |
|---|
| 168, Hicks Farm Rise956 m away | 95 m² | 127 m² | +32 m² +34% | 2016 |
|---|
| 42, Amersham Hill Drive380 m away | 167 m² | 198 m² | +31 m² +19% | 2024 |
|---|
| 6, Amersham Road795 m away | 156 m² | 187 m² | +31 m² +20% | 2024 |
|---|
| 1, Firs Close778 m away | 87 m² | 118 m² | +31 m² +36% | 2020 |
|---|
| 3, The Crescent579 m away | 80 m² | 110 m² | +30 m² +38% | 2024 |
|---|
| 6, Hardenwaye574 m away | 146 m² | 176 m² | +30 m² +21% | 2014 |
|---|
| 13, New Drive427 m away | 94 m² | 123 m² | +29 m² +31% | 2024 |
|---|
| 58, Geralds Road389 m away | 97 m² | 126 m² | +29 m² +30% | 2022 |
|---|
| 28, Linchfield999 m away | 45 m² | 74 m² | +29 m² +64% | 2016 |
|---|
| 26, Chadwick Street618 m away | 78 m² | 106 m² | +28 m² +36% | 2026 |
|---|
| 12, Montford Mews836 m away | 96 m² | 124 m² | +28 m² +29% | 2020 |
|---|
| 106, Walton Drive219 m away | 77 m² | 105 m² | +28 m² +36% | 2016 |
|---|
| 116, Walton Drive219 m away | 86 m² | 114 m² | +28 m² +33% | 2016 |
|---|
| 81, Walton Drive330 m away | 94 m² | 121 m² | +27 m² +29% | 2015 |
|---|
| 80, Adelaide Road162 m away | 84 m² | 110 m² | +26 m² +31% | 2025 |
|---|
| 1, Hepplewhite Close461 m away | 84 m² | 110 m² | +26 m² +31% | 2024 |
|---|
| 28, Highworth Close503 m away | 107 m² | 133 m² | +26 m² +24% | 2021 |
|---|
| 3, Adelaide Road167 m away | 113 m² | 139 m² | +26 m² +23% | 2016 |
|---|
| 4, Amersham Hill Gardens680 m away | 163 m² | 189 m² | +26 m² +16% | 2014 |
|---|
| 10, The Crescent579 m away | 108 m² | 132 m² | +24 m² +22% | 2024 |
|---|
| 46, Amersham Hill Drive380 m away | 151 m² | 175 m² | +24 m² +16% | 2021 |
|---|
| 10, Chadwick Street618 m away | 69 m² | 93 m² | +24 m² +35% | 2020 |
|---|
| 26, Colborne Road291 m away | 78 m² | 102 m² | +24 m² +31% | 2016 |
|---|
| 140, Bowerdean Road850 m away | 71 m² | 94 m² | +23 m² +32% | 2026 |
|---|
| 134, Amersham Road502 m away | 79 m² | 102 m² | +23 m² +29% | 2022 |
|---|
| 210, Hatters Lane947 m away | 67 m² | 90 m² | +23 m² +34% | 2021 |
|---|
| 16, Mayhew Crescent343 m away | 88 m² | 111 m² | +23 m² +26% | 2016 |
|---|
| 73, Hamilton Road865 m away | 139 m² | 162 m² | +23 m² +17% | 2016 |
|---|
| 102, Walton Drive219 m away | 107 m² | 130 m² | +23 m² +21% | 2015 |
|---|
| 2, Potters Cross Crescent803 m away | 146 m² | 169 m² | +23 m² +16% | 2011 |
|---|
| 49, Totteridge Drive477 m away | 58 m² | 80 m² | +22 m² +38% | 2022 |
|---|
| 43, Kingshill Crescent943 m away | 128 m² | 150 m² | +22 m² +17% | 2021 |
|---|
| 3, New Drive427 m away | 62 m² | 84 m² | +22 m² +35% | 2020 |
|---|
| 161, Totteridge Road818 m away | 73 m² | 95 m² | +22 m² +30% | 2017 |
|---|
| 25, Nicholas Gardens505 m away | 59 m² | 81 m² | +22 m² +37% | 2016 |
|---|
| 14, Hillary Road997 m away | 89 m² | 111 m² | +22 m² +25% | 2014 |
|---|
| 34, West Drive356 m away | 59 m² | 81 m² | +22 m² +37% | 2013 |
|---|
| 217, Totteridge Road745 m away | 72 m² | 93 m² | +21 m² +29% | 2026 |
|---|
| 32, North Drive303 m away | 87 m² | 108 m² | +21 m² +24% | 2023 |
|---|
| 1, Wellesbourne Gardens686 m away | 72 m² | 93 m² | +21 m² +29% | 2022 |
|---|
| 76, Underwood Road493 m away | 73 m² | 94 m² | +21 m² +29% | 2017 |
|---|
| 1, Hobart Road143 m away | 98 m² | 119 m² | +21 m² +21% | 2015 |
|---|
| 10, Dunwood Rise967 m away | 57 m² | 78 m² | +21 m² +37% | 2015 |
|---|
| 97, Windsor Drive375 m away | 36 m² | 57 m² | +21 m² +58% | 2014 |
|---|
| 6, The Crescent579 m away | 92 m² | 112 m² | +20 m² +22% | 2025 |
|---|
| 4, Hepplewhite Close461 m away | 80 m² | 100 m² | +20 m² +25% | 2024 |
|---|
| 12, Maybrook Gardens785 m away | 78 m² | 98 m² | +20 m² +26% | 2022 |
|---|
| 15, Nicholas Gardens505 m away | 56 m² | 76 m² | +20 m² +36% | 2016 |
|---|
| 9, Elora Road687 m away | 89 m² | 109 m² | +20 m² +22% | 2013 |
|---|
| 77, Amersham Road477 m away | 77 m² | 96 m² | +19 m² +25% | 2026 |
|---|
| 22, Salisbury Road37 m away | 103 m² | 122 m² | +19 m² +18% | 2016 |
|---|
| 56, Nicholas Gardens546 m away | 61 m² | 80 m² | +19 m² +31% | 2016 |
|---|
| Flat 7, Hillcrest, Shrubbery Road972 m away | 60 m² | 79 m² | +19 m² +32% | 2014 |
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| 15, Sussex Close0 m away | 80 m² | 98 m² | +18 m² +23% | 2024 |
|---|
| 87, Mayhew Crescent329 m away | 88 m² | 106 m² | +18 m² +20% | 2024 |
|---|
| 65a, Amersham Road477 m away | 22 m² | 40 m² | +18 m² +82% | 2024 |
|---|
| 246, Totteridge Road744 m away | 89 m² | 107 m² | +18 m² +20% | 2018 |
|---|
| 57, Tyzack Road756 m away | 84 m² | 102 m² | +18 m² +21% | 2016 |
|---|
| 160a, Amersham Road601 m away | 77 m² | 95 m² | +18 m² +23% | 2015 |
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| 72, Totteridge Drive239 m away | 79 m² | 96 m² | +17 m² +22% | 2022 |
|---|
| 21, Hillview Road240 m away | 72 m² | 89 m² | +17 m² +24% | 2016 |
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| 32, Chadwick Street618 m away | 77 m² | 94 m² | +17 m² +22% | 2015 |
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| 17, Dunwood Rise967 m away | 70 m² | 87 m² | +17 m² +24% | 2015 |
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| 23, Underwood Road770 m away | 100 m² | 117 m² | +17 m² +17% | 2014 |
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| 31, Rowan Avenue658 m away | 74 m² | 90 m² | +16 m² +22% | 2023 |
|---|
| 31, Hillview Road240 m away | 80 m² | 96 m² | +16 m² +20% | 2022 |
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| 21, Denewood, Totteridge Road718 m away | 68 m² | 84 m² | +16 m² +24% | 2021 |
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| 21, Elora Road687 m away | 79 m² | 95 m² | +16 m² +20% | 2019 |
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| 42, Lyndon Gardens585 m away | 96 m² | 112 m² | +16 m² +17% | 2015 |
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| 4, Hollis Road822 m away | 92 m² | 107 m² | +15 m² +16% | 2022 |
|---|
| 68, Linchfield902 m away | 44 m² | 59 m² | +15 m² +34% | 2020 |
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| 8, Healey Avenue960 m away | 73 m² | 88 m² | +15 m² +21% | 2015 |
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