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 6JA
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 |
|---|---|---|---|---|
| 14, Lucas Road449 m away | 334 m² | 604 m² | +270 m² +81% | 2018 |
| 4, Overleigh Court, Amersham Road719 m away | 103 m² | 242 m² | +139 m² +135% | 2015 |
| 274, Totteridge Road346 m away | 106 m² | 234 m² | +128 m² +121% | 2015 |
| The Cider Press, 37, London Road835 m away | 174 m² | 299 m² | +125 m² +72% | 2024 |
| 1, Rectory Avenue663 m away | 95 m² | 218 m² | +123 m² +129% | 2025 |
| 1, St Georges Close409 m away | 120 m² | 237 m² | +117 m² +98% | 2026 |
| 12, North Drive568 m away | 71 m² | 167 m² | +96 m² +135% | 2020 |
| 106, Hatters Lane813 m away | 132 m² | 227 m² | +95 m² +72% | 2025 |
| 85, Hamilton Road992 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 |
| 2, Philip Road220 m away | 61 m² | 144 m² | +83 m² +136% | 2014 |
|---|
| 25, Rectory Avenue663 m away | 110 m² | 190 m² | +80 m² +73% | 2021 |
|---|
| 36, Amersham Hill Drive627 m away | 171 m² | 244 m² | +73 m² +43% | 2022 |
|---|
| 12a, Terry Road490 m away | 102 m² | 172 m² | +70 m² +69% | 2016 |
|---|
| 230, Hatters Lane660 m away | 85 m² | 150 m² | +65 m² +76% | 2019 |
|---|
| 195, London Road911 m away | 64 m² | 128 m² | +64 m² +100% | 2015 |
|---|
| 3, Totteridge Drive835 m away | 89 m² | 146 m² | +57 m² +64% | 2021 |
|---|
| 28, Kingston Road576 m away | 90 m² | 147 m² | +57 m² +63% | 2014 |
|---|
| 21, Hunt Road589 m away | 87 m² | 144 m² | +57 m² +66% | 2014 |
|---|
| 27, Tenzing Drive974 m away | 49 m² | 105 m² | +56 m² +114% | 2016 |
|---|
| Flat 8, Towers Lea, Conegra Road771 m away | 55 m² | 110 m² | +55 m² +100% | 2019 |
|---|
| 22, Queen Street610 m away | 82 m² | 136 m² | +54 m² +66% | 2022 |
|---|
| 43, Walton Drive752 m away | 101 m² | 154 m² | +53 m² +52% | 2015 |
|---|
| 13, Mayhew Crescent454 m away | 97 m² | 148 m² | +51 m² +53% | 2017 |
|---|
| 71, Cambridge Crescent598 m away | 82 m² | 130 m² | +48 m² +59% | 2014 |
|---|
| 39, Rowan Avenue0 m away | 71 m² | 118 m² | +47 m² +66% | 2016 |
|---|
| 15, South Drive265 m away | 82 m² | 129 m² | +47 m² +57% | 2015 |
|---|
| 38, Chippendale Close808 m away | 94 m² | 140 m² | +46 m² +49% | 2014 |
|---|
| 20, Underwood Road265 m away | 74 m² | 120 m² | +46 m² +62% | 2013 |
|---|
| 11, Keens Close889 m away | 82 m² | 126 m² | +44 m² +54% | 2018 |
|---|
| 220, Totteridge Road174 m away | 100 m² | 143 m² | +43 m² +43% | 2024 |
|---|
| 6, Hazelbury Road667 m away | 72 m² | 115 m² | +43 m² +60% | 2024 |
|---|
| 26, Amersham Road743 m away | 256 m² | 298 m² | +42 m² +16% | 2026 |
|---|
| 42, Maybrook Gardens631 m away | 157 m² | 199 m² | +42 m² +27% | 2023 |
|---|
| 91, Totteridge Road568 m away | 77 m² | 119 m² | +42 m² +55% | 2018 |
|---|
| 2, Hollis Road724 m away | 90 m² | 132 m² | +42 m² +47% | 2016 |
|---|
| 65, Nicholas Gardens184 m away | 57 m² | 99 m² | +42 m² +74% | 2015 |
|---|
| 219, Hatters Lane660 m away | 58 m² | 100 m² | +42 m² +72% | 2011 |
|---|
| 242, Totteridge Road346 m away | 77 m² | 118 m² | +41 m² +53% | 2019 |
|---|
| 265, Totteridge Road304 m away | 74 m² | 114 m² | +40 m² +54% | 2024 |
|---|
| 20, Sussex Close658 m away | 94 m² | 134 m² | +40 m² +43% | 2024 |
|---|
| 217, Hatters Lane660 m away | 66 m² | 106 m² | +40 m² +61% | 2024 |
|---|
| 17, St Georges Close409 m away | 84 m² | 124 m² | +40 m² +48% | 2015 |
|---|
| 270, Bowerdean Road335 m away | 80 m² | 120 m² | +40 m² +50% | 2013 |
|---|
| 7, The Quadrant857 m away | 81 m² | 120 m² | +39 m² +48% | 2013 |
|---|
| 146, London Road971 m away | 164 m² | 202 m² | +38 m² +23% | 2025 |
|---|
| 173, Bowerdean Road171 m away | 71 m² | 108 m² | +37 m² +52% | 2025 |
|---|
| 58, Totteridge Drive669 m away | 80 m² | 117 m² | +37 m² +46% | 2025 |
|---|
| 115, Arnison Avenue984 m away | 92 m² | 129 m² | +37 m² +40% | 2021 |
|---|
| 8, Hobart Road765 m away | 104 m² | 141 m² | +37 m² +36% | 2015 |
|---|
| 52, Amersham Hill Drive627 m away | 154 m² | 190 m² | +36 m² +23% | 2023 |
|---|
| 35, Rye View628 m away | 159 m² | 195 m² | +36 m² +23% | 2023 |
|---|
| 25, Conegra Road647 m away | 82 m² | 118 m² | +36 m² +44% | 2017 |
|---|
| 31, The Quadrant857 m away | 84 m² | 120 m² | +36 m² +43% | 2016 |
|---|
| 252, Totteridge Road346 m away | 90 m² | 125 m² | +35 m² +39% | 2014 |
|---|
| 104, Walton Drive864 m away | 95 m² | 130 m² | +35 m² +37% | 2014 |
|---|
| 49, Wheelers Park444 m away | 71 m² | 105 m² | +34 m² +48% | 2020 |
|---|
| 29, Terryfield Road791 m away | 73 m² | 107 m² | +34 m² +47% | 2016 |
|---|
| 133, Underwood Road255 m away | 73 m² | 106 m² | +33 m² +45% | 2026 |
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| 5, Chippendale Close807 m away | 105 m² | 138 m² | +33 m² +31% | 2025 |
|---|
| 3, Hillary Close832 m away | 83 m² | 116 m² | +33 m² +40% | 2018 |
|---|
| 1, Baring Road894 m away | 80 m² | 113 m² | +33 m² +41% | 2017 |
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| 310, Totteridge Road529 m away | 205 m² | 237 m² | +32 m² +16% | 2025 |
|---|
| 54, Mayhew Crescent542 m away | 100 m² | 132 m² | +32 m² +32% | 2020 |
|---|
| 168, Hicks Farm Rise758 m away | 95 m² | 127 m² | +32 m² +34% | 2016 |
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| 42, Amersham Hill Drive627 m away | 167 m² | 198 m² | +31 m² +19% | 2024 |
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| 6, Amersham Road670 m away | 156 m² | 187 m² | +31 m² +20% | 2024 |
|---|
| 1, Firs Close548 m away | 87 m² | 118 m² | +31 m² +36% | 2020 |
|---|
| 3, The Crescent381 m away | 80 m² | 110 m² | +30 m² +38% | 2024 |
|---|
| 8, Quebec Road859 m away | 92 m² | 122 m² | +30 m² +33% | 2023 |
|---|
| 17, Terryfield Road791 m away | 75 m² | 105 m² | +30 m² +40% | 2015 |
|---|
| 6, Hardenwaye868 m away | 146 m² | 176 m² | +30 m² +21% | 2014 |
|---|
| 7, Peatey Court, Princes Gate807 m away | 32 m² | 61 m² | +29 m² +91% | 2025 |
|---|
| 13, New Drive475 m away | 94 m² | 123 m² | +29 m² +31% | 2024 |
|---|
| 20, St Georges Close409 m away | 113 m² | 142 m² | +29 m² +26% | 2023 |
|---|
| 28, Linchfield386 m away | 45 m² | 74 m² | +29 m² +64% | 2016 |
|---|
| 106, Walton Drive864 m away | 77 m² | 105 m² | +28 m² +36% | 2016 |
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| 116, Walton Drive864 m away | 86 m² | 114 m² | +28 m² +33% | 2016 |
|---|
| 11, Totteridge Avenue519 m away | 64 m² | 92 m² | +28 m² +44% | 2009 |
|---|
| 19, St Georges Close409 m away | 95 m² | 122 m² | +27 m² +28% | 2018 |
|---|
| 81, Walton Drive752 m away | 94 m² | 121 m² | +27 m² +29% | 2015 |
|---|
| 3, Malmers Well Road936 m away | 103 m² | 129 m² | +26 m² +25% | 2026 |
|---|
| 80, Adelaide Road812 m away | 84 m² | 110 m² | +26 m² +31% | 2025 |
|---|
| 1, Hepplewhite Close335 m away | 84 m² | 110 m² | +26 m² +31% | 2024 |
|---|
| 28, Highworth Close993 m away | 107 m² | 133 m² | +26 m² +24% | 2021 |
|---|
| 3, Adelaide Road541 m away | 113 m² | 139 m² | +26 m² +23% | 2016 |
|---|
| 4, Amersham Hill Gardens814 m away | 163 m² | 189 m² | +26 m² +16% | 2014 |
|---|
| 10, The Crescent381 m away | 108 m² | 132 m² | +24 m² +22% | 2024 |
|---|
| 46, Amersham Hill Drive627 m away | 151 m² | 175 m² | +24 m² +16% | 2021 |
|---|
| 26, Colborne Road382 m away | 78 m² | 102 m² | +24 m² +31% | 2016 |
|---|
| 91, Gayhurst Road940 m away | 74 m² | 98 m² | +24 m² +32% | 2015 |
|---|
| 140, Bowerdean Road254 m away | 71 m² | 94 m² | +23 m² +32% | 2026 |
|---|
| 32, Saffron Road862 m away | 82 m² | 105 m² | +23 m² +28% | 2025 |
|---|
| 210, Hatters Lane673 m away | 67 m² | 90 m² | +23 m² +34% | 2021 |
|---|
| 16, Mayhew Crescent454 m away | 88 m² | 111 m² | +23 m² +26% | 2016 |
|---|
| 102, Walton Drive864 m away | 107 m² | 130 m² | +23 m² +21% | 2015 |
|---|
| 128, Hillary Road859 m away | 83 m² | 105 m² | +22 m² +27% | 2023 |
|---|
| 49, Totteridge Drive758 m away | 58 m² | 80 m² | +22 m² +38% | 2022 |
|---|
| 3, New Drive475 m away | 62 m² | 84 m² | +22 m² +35% | 2020 |
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| 34, Rectory Avenue646 m away | 107 m² | 129 m² | +22 m² +21% | 2019 |
|---|
| 161, Totteridge Road173 m away | 73 m² | 95 m² | +22 m² +30% | 2017 |
|---|
| 25, Nicholas Gardens175 m away | 59 m² | 81 m² | +22 m² +37% | 2016 |
|---|
| 14, Hillary Road407 m away | 89 m² | 111 m² | +22 m² +25% | 2014 |
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| 34, West Drive415 m away | 59 m² | 81 m² | +22 m² +37% | 2013 |
|---|
| 32, Tadros Court743 m away | 128 m² | 150 m² | +22 m² +17% | 2012 |
|---|
| 217, Totteridge Road154 m away | 72 m² | 93 m² | +21 m² +29% | 2026 |
|---|
| 91, Queens Road739 m away | 87 m² | 108 m² | +21 m² +24% | 2025 |
|---|
| 32, North Drive568 m away | 87 m² | 108 m² | +21 m² +24% | 2023 |
|---|
| 76, Underwood Road255 m away | 73 m² | 94 m² | +21 m² +29% | 2017 |
|---|
| 1, Hobart Road765 m away | 98 m² | 119 m² | +21 m² +21% | 2015 |
|---|
| 97, Windsor Drive911 m away | 36 m² | 57 m² | +21 m² +58% | 2014 |
|---|
| 33, Totteridge Avenue519 m away | 90 m² | 110 m² | +20 m² +22% | 2026 |
|---|
| 6, The Crescent381 m away | 92 m² | 112 m² | +20 m² +22% | 2025 |
|---|
| 4, Hepplewhite Close335 m away | 80 m² | 100 m² | +20 m² +25% | 2024 |
|---|
| 12, Maybrook Gardens631 m away | 78 m² | 98 m² | +20 m² +26% | 2022 |
|---|
| 15, Nicholas Gardens175 m away | 56 m² | 76 m² | +20 m² +36% | 2016 |
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| 6, Stuart Road852 m away | 77 m² | 97 m² | +20 m² +26% | 2016 |
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| 9, Elora Road235 m away | 89 m² | 109 m² | +20 m² +22% | 2013 |
|---|
| 142, Hatters Lane813 m away | 86 m² | 106 m² | +20 m² +23% | 2011 |
|---|
| 126, Bowerdean Road409 m away | 77 m² | 96 m² | +19 m² +25% | 2026 |
|---|
| 56, Nicholas Gardens184 m away | 61 m² | 80 m² | +19 m² +31% | 2016 |
|---|
| 22, Salisbury Road649 m away | 103 m² | 122 m² | +19 m² +18% | 2016 |
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| 29, Conegra Road647 m away | 83 m² | 102 m² | +19 m² +23% | 2015 |
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| Flat 7, Hillcrest, Shrubbery Road778 m away | 60 m² | 79 m² | +19 m² +32% | 2014 |
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| 87, Mayhew Crescent542 m away | 88 m² | 106 m² | +18 m² +20% | 2024 |
|---|
| 15, Sussex Close658 m away | 80 m² | 98 m² | +18 m² +23% | 2024 |
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| 193, London Road911 m away | 72 m² | 90 m² | +18 m² +25% | 2024 |
|---|
| 66, Totteridge Avenue549 m away | 92 m² | 110 m² | +18 m² +20% | 2020 |
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| 74, Peatey Court, Princes Gate872 m away | 32 m² | 50 m² | +18 m² +56% | 2020 |
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| 79, Hicks Farm Rise946 m away | 78 m² | 96 m² | +18 m² +23% | 2019 |
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| 246, Totteridge Road346 m away | 89 m² | 107 m² | +18 m² +20% | 2018 |
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| Havenfield Court, Totteridge Road876 m away | 49 m² | 67 m² | +18 m² +37% | 2010 |
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| 72, Totteridge Drive669 m away | 79 m² | 96 m² | +17 m² +22% | 2022 |
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| 21, Hillview Road419 m away | 72 m² | 89 m² | +17 m² +24% | 2016 |
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| 23, Underwood Road265 m away | 100 m² | 117 m² | +17 m² +17% | 2014 |
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| 32, Rectory Avenue646 m away | 87 m² | 104 m² | +17 m² +20% | 2013 |
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| 4, Rectory Avenue646 m away | 36 m² | 53 m² | +17 m² +47% | 2009 |
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| 65 - 69, London Road835 m away | 42 m² | 58 m² | +16 m² +38% | 2026 |
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| Flat 1, St. Bernards Court, Harlow Road879 m away | 51 m² | 67 m² | +16 m² +31% | 2024 |
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| 31, Rowan Avenue0 m away | 74 m² | 90 m² | +16 m² +22% | 2023 |
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| 31, Hillview Road419 m away | 80 m² | 96 m² | +16 m² +20% | 2022 |
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| 21, Denewood, Totteridge Road479 m away | 68 m² | 84 m² | +16 m² +24% | 2021 |
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| Flat 30, Priestley Court, Princes Gate908 m away | 52 m² | 68 m² | +16 m² +31% | 2021 |
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| 21, Elora Road235 m away | 79 m² | 95 m² | +16 m² +20% | 2019 |
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| 10, Gordon Road666 m away | 84 m² | 100 m² | +16 m² +19% | 2019 |
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| 42, Lyndon Gardens621 m away | 96 m² | 112 m² | +16 m² +17% | 2015 |
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| 5, Edgecote House, Amersham Hill895 m away | 50 m² | 66 m² | +16 m² +32% | 2014 |
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| 100, Totteridge Road575 m away | 76 m² | 91 m² | +15 m² +20% | 2024 |
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| 4, Hollis Road724 m away | 92 m² | 107 m² | +15 m² +16% | 2022 |
|---|
| 32, Tenzing Drive974 m away | 90 m² | 105 m² | +15 m² +17% | 2021 |
|---|
| 68, Linchfield361 m away | 44 m² | 59 m² | +15 m² +34% | 2020 |
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| 8, Healey Avenue302 m away | 73 m² | 88 m² | +15 m² +21% | 2015 |
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