Finding extended homes…
These only choose where you start. Every page and every lens is still one tap away.
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 SE23 3UN
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 |
|---|---|---|---|---|
| 81, Canonbie Road978 m away | 112 m² | 240 m² | +128 m² +114% | 2021 |
| 1, Radlet Avenue276 m away | 123 m² | 242 m² | +119 m² +97% | 2026 |
| 7b, Church Rise790 m away | 143 m² | 256 m² | +113 m² +79% | 2024 |
| 66, Sunderland Road881 m away | 100 m² | 209 m² | +109 m² +109% | 2026 |
| 76, London Road315 m away | 105 m² | 210 m² | +105 m² +100% | 2013 |
| 13e, Westwood Park542 m away | 122 m² | 224 m² | +102 m² +84% | 2014 |
| 7, Streamline Mews817 m away | 66 m² | 165 m² | +99 m² +150% | 2018 |
| 5, Hennel Close760 m away | 94 m² | 188 m² | +94 m² +100% | 2026 |
| 45, Westwood Park683 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.
| 111 m² |
| 205 m² |
| +94 m² +85% |
| 2016 |
| 80, Canonbie Road951 m away | 198 m² | 285 m² | +87 m² +44% | 2020 |
|---|
| 32b, Sunderland Road859 m away | 118 m² | 205 m² | +87 m² +74% | 2015 |
|---|
| 32, Tewkesbury Avenue757 m away | 95 m² | 181 m² | +86 m² +91% | 2017 |
|---|
| 17, Gaynesford Road829 m away | 108 m² | 191 m² | +83 m² +77% | 2020 |
|---|
| 41, Carlton Terrace815 m away | 128 m² | 208 m² | +80 m² +63% | 2019 |
|---|
| 26, Panmure Road608 m away | 71 m² | 146 m² | +75 m² +106% | 2017 |
|---|
| 28, Devonshire Road539 m away | 85 m² | 160 m² | +75 m² +88% | 2015 |
|---|
| Arthive Studios Unit 3, 29, Hindsleys Place570 m away | 59 m² | 134 m² | +75 m² +127% | 2015 |
|---|
| 50, Peak Hill959 m away | 69 m² | 139 m² | +70 m² +101% | 2020 |
|---|
| 96, Wood Vale869 m away | 275 m² | 344 m² | +69 m² +25% | 2026 |
|---|
| 26, Peak Hill959 m away | 59 m² | 128 m² | +69 m² +117% | 2023 |
|---|
| 15, Westwood Park603 m away | 166 m² | 233 m² | +67 m² +40% | 2017 |
|---|
| 47, Stanstead Road644 m away | 95 m² | 161 m² | +66 m² +69% | 2020 |
|---|
| 67, Sunderland Road924 m away | 219 m² | 284 m² | +65 m² +30% | 2023 |
|---|
| 12, Underhill Road733 m away | 261 m² | 325 m² | +64 m² +25% | 2025 |
|---|
| 13, Peckarmans Wood884 m away | 112 m² | 176 m² | +64 m² +57% | 2019 |
|---|
| Three Leaves, 4a, Crescent Wood Road883 m away | 271 m² | 333 m² | +62 m² +23% | 2025 |
|---|
| 2, Rosamond Street724 m away | 79 m² | 140 m² | +61 m² +77% | 2024 |
|---|
| 49, Beadnell Road961 m away | 114 m² | 175 m² | +61 m² +54% | 2021 |
|---|
| 71, Canonbie Road978 m away | 108 m² | 169 m² | +61 m² +56% | 2021 |
|---|
| 127, Sydenham Hill337 m away | 225 m² | 285 m² | +60 m² +27% | 2022 |
|---|
| 27, Ringmore Rise974 m away | 102 m² | 162 m² | +60 m² +59% | 2021 |
|---|
| 10, Dulwich Common946 m away | 147 m² | 205 m² | +58 m² +39% | 2022 |
|---|
| 45, Kirkdale455 m away | 90 m² | 147 m² | +57 m² +63% | 2024 |
|---|
| 134, Westwood Park848 m away | 103 m² | 160 m² | +57 m² +55% | 2023 |
|---|
| 1, St Pauls Conversion, Taymount Rise175 m away | 139 m² | 195 m² | +56 m² +40% | 2016 |
|---|
| Flat 2, 14, Waldram Park Road790 m away | 115 m² | 170 m² | +55 m² +48% | 2021 |
|---|
| 8, Liphook Crescent821 m away | 84 m² | 138 m² | +54 m² +64% | 2013 |
|---|
| 56, Stanstead Road743 m away | 70 m² | 123 m² | +53 m² +76% | 2024 |
|---|
| 489, Lordship Lane896 m away | 77 m² | 130 m² | +53 m² +69% | 2024 |
|---|
| 7, Whittell Gardens768 m away | 86 m² | 139 m² | +53 m² +62% | 2014 |
|---|
| 40, Whittell Gardens768 m away | 79 m² | 131 m² | +52 m² +66% | 2017 |
|---|
| 4, Church View, Sunderland Road851 m away | 106 m² | 158 m² | +52 m² +49% | 2015 |
|---|
| 42, Thorpewood Avenue246 m away | 84 m² | 135 m² | +51 m² +61% | 2026 |
|---|
| 11, Ewelme Road645 m away | 105 m² | 155 m² | +50 m² +48% | 2024 |
|---|
| 32, Trilby Road938 m away | 77 m² | 127 m² | +50 m² +65% | 2023 |
|---|
| 26, Wood Vale618 m away | 98 m² | 147 m² | +49 m² +50% | 2020 |
|---|
| 10, Horniman Drive749 m away | 97 m² | 146 m² | +49 m² +51% | 2020 |
|---|
| 13, Ringmore Rise974 m away | 106 m² | 155 m² | +49 m² +46% | 2015 |
|---|
| 70a, Wood Vale869 m away | 146 m² | 194 m² | +48 m² +33% | 2022 |
|---|
| 11a, Ewelme Road645 m away | 104 m² | 151 m² | +47 m² +45% | 2026 |
|---|
| 8, Roundhay Close666 m away | 79 m² | 126 m² | +47 m² +59% | 2021 |
|---|
| 20, Whittell Gardens768 m away | 86 m² | 133 m² | +47 m² +55% | 2019 |
|---|
| 101b, Wood Vale871 m away | 79 m² | 126 m² | +47 m² +59% | 2016 |
|---|
| 25, Collingtree Road995 m away | 84 m² | 130 m² | +46 m² +55% | 2025 |
|---|
| 36a, Panmure Road608 m away | 84 m² | 130 m² | +46 m² +55% | 2023 |
|---|
| 23, Fransfield Grove722 m away | 38 m² | 84 m² | +46 m² +121% | 2010 |
|---|
| 6, Ewelme Road732 m away | 171 m² | 216 m² | +45 m² +26% | 2026 |
|---|
| 34, Tewkesbury Avenue757 m away | 84 m² | 129 m² | +45 m² +54% | 2024 |
|---|
| 109, Sydenham Park Road864 m away | 85 m² | 129 m² | +44 m² +52% | 2024 |
|---|
| 37, Cheseman Street529 m away | 146 m² | 189 m² | +43 m² +29% | 2020 |
|---|
| 26, Trilby Road938 m away | 76 m² | 119 m² | +43 m² +57% | 2019 |
|---|
| 18, Cleeve Hill466 m away | 34 m² | 77 m² | +43 m² +126% | 2016 |
|---|
| 26, Belvoir Road977 m away | 98 m² | 141 m² | +43 m² +44% | 2015 |
|---|
| 64, Devonshire Road736 m away | 207 m² | 249 m² | +42 m² +20% | 2022 |
|---|
| 13c, Havelock Walk423 m away | 62 m² | 104 m² | +42 m² +68% | 2020 |
|---|
| 107b, Wood Vale871 m away | 73 m² | 115 m² | +42 m² +58% | 2013 |
|---|
| 42, Wood Vale618 m away | 124 m² | 166 m² | +42 m² +34% | 2012 |
|---|
| 157, Sydenham Park Road864 m away | 110 m² | 151 m² | +41 m² +37% | 2023 |
|---|
| 18, Davids Road474 m away | 49 m² | 90 m² | +41 m² +84% | 2020 |
|---|
| 43, Peckarmans Wood878 m away | 97 m² | 138 m² | +41 m² +42% | 2016 |
|---|
| 14, Peak Hill959 m away | 80 m² | 121 m² | +41 m² +51% | 2015 |
|---|
| 30, Thorpewood Avenue246 m away | 168 m² | 209 m² | +41 m² +24% | 2012 |
|---|
| 54, Westwood Park848 m away | 103 m² | 144 m² | +41 m² +40% | 2012 |
|---|
| A home on Panmure Road653 m away | 215 m² | 255 m² | +40 m² +19% | 2026 |
|---|
| 50, Rockbourne Road804 m away | 120 m² | 160 m² | +40 m² +33% | 2026 |
|---|
| Flat 26, Valentine Court, Perry Vale721 m away | 44 m² | 84 m² | +40 m² +91% | 2022 |
|---|
| 105, London Road243 m away | 125 m² | 164 m² | +39 m² +31% | 2026 |
|---|
| Flat 3, 32, Sydenham Park747 m away | 63 m² | 102 m² | +39 m² +62% | 2025 |
|---|
| 73, Sunderland Road924 m away | 238 m² | 277 m² | +39 m² +16% | 2021 |
|---|
| 23c, Church Rise790 m away | 112 m² | 151 m² | +39 m² +35% | 2015 |
|---|
| 7, Hassocks Close402 m away | 49 m² | 87 m² | +38 m² +78% | 2025 |
|---|
| 30, Honor Oak Road989 m away | 92 m² | 130 m² | +38 m² +41% | 2025 |
|---|
| 34, Woodcombe Crescent633 m away | 117 m² | 155 m² | +38 m² +32% | 2023 |
|---|
| 12, Trilby Road938 m away | 85 m² | 123 m² | +38 m² +45% | 2023 |
|---|
| 43, Woodcombe Crescent633 m away | 113 m² | 151 m² | +38 m² +34% | 2020 |
|---|
| 50, Stanstead Road743 m away | 79 m² | 117 m² | +38 m² +48% | 2020 |
|---|
| 29, Perry Vale570 m away | 52 m² | 90 m² | +38 m² +73% | 2016 |
|---|
| 51, Ringmore Rise772 m away | 126 m² | 163 m² | +37 m² +29% | 2026 |
|---|
| 23, Benson Road770 m away | 129 m² | 166 m² | +37 m² +29% | 2025 |
|---|
| 58, Trilby Road938 m away | 96 m² | 133 m² | +37 m² +39% | 2025 |
|---|
| 82, Stanstead Road871 m away | 83 m² | 120 m² | +37 m² +45% | 2023 |
|---|
| Flat A, 35, Waldram Park Road817 m away | 60 m² | 97 m² | +37 m² +62% | 2022 |
|---|
| 25, Belvoir Road977 m away | 145 m² | 182 m² | +37 m² +26% | 2019 |
|---|
| 35, Underhill Road874 m away | 207 m² | 244 m² | +37 m² +18% | 2017 |
|---|
| 22, Fransfield Grove722 m away | 43 m² | 80 m² | +37 m² +86% | 2011 |
|---|
| 49, Thorpewood Avenue278 m away | 133 m² | 169 m² | +36 m² +27% | 2023 |
|---|
| 161, Honor Oak Road610 m away | 82 m² | 118 m² | +36 m² +44% | 2023 |
|---|
| 3, The Peak864 m away | 86 m² | 122 m² | +36 m² +42% | 2022 |
|---|
| 28, Stanstead Road743 m away | 106 m² | 142 m² | +36 m² +34% | 2020 |
|---|
| 4, Julian Tayler Path207 m away | 89 m² | 125 m² | +36 m² +40% | 2019 |
|---|
| 18, Rosamond Street724 m away | 81 m² | 117 m² | +36 m² +44% | 2018 |
|---|
| 29, Sunderland Road924 m away | 47 m² | 83 m² | +36 m² +77% | 2016 |
|---|
| Flat 8, Hosford House, 48, Devonshire Road609 m away | 61 m² | 97 m² | +36 m² +59% | 2012 |
|---|
| 12, Mount Ash Road536 m away | 79 m² | 115 m² | +36 m² +46% | 2010 |
|---|
| Flat 5, 8, Wells Park Road810 m away | 26 m² | 61 m² | +35 m² +135% | 2026 |
|---|
| 65, Westwood Park683 m away | 105 m² | 140 m² | +35 m² +33% | 2025 |
|---|
| 2, The Fieldings590 m away | 76 m² | 111 m² | +35 m² +46% | 2024 |
|---|
| 128, Westwood Park848 m away | 118 m² | 153 m² | +35 m² +30% | 2016 |
|---|
| 33, Benson Road770 m away | 29 m² | 64 m² | +35 m² +121% | 2012 |
|---|
| 75, Longfield Crescent575 m away | 73 m² | 108 m² | +35 m² +48% | 2011 |
|---|
| 9, Derby Hill Crescent243 m away | 106 m² | 140 m² | +34 m² +32% | 2025 |
|---|
| Flat 4, 34a, Sydenham Hill586 m away | 113 m² | 147 m² | +34 m² +30% | 2022 |
|---|
| 53b, Dartmouth Road397 m away | 86 m² | 120 m² | +34 m² +40% | 2019 |
|---|
| Flat 3, Burnfoot Court, 7, Wood Vale600 m away | 52 m² | 86 m² | +34 m² +65% | 2018 |
|---|
| 24, Derby Hill Crescent243 m away | 102 m² | 135 m² | +33 m² +32% | 2023 |
|---|
| 100, Sydenham Park Road898 m away | 95 m² | 128 m² | +33 m² +35% | 2022 |
|---|
| 31, Dacres Road709 m away | 72 m² | 105 m² | +33 m² +46% | 2019 |
|---|
| Flat 13, Fitzwilliam Heights, 21, Taymount Rise150 m away | 84 m² | 117 m² | +33 m² +39% | 2014 |
|---|
| 8, The Peak864 m away | 102 m² | 134 m² | +32 m² +31% | 2026 |
|---|
| 4, Waldram Park Road790 m away | 40 m² | 72 m² | +32 m² +80% | 2022 |
|---|
| 9a, Belvoir Road977 m away | 57 m² | 89 m² | +32 m² +56% | 2021 |
|---|
| 5, Sandown Court582 m away | 58 m² | 90 m² | +32 m² +55% | 2019 |
|---|
| 53, Chelsfield Gardens770 m away | 80 m² | 112 m² | +32 m² +40% | 2014 |
|---|
| 20, Trilby Road938 m away | 81 m² | 113 m² | +32 m² +40% | 2014 |
|---|
| 36, Kirkdale479 m away | 177 m² | 209 m² | +32 m² +18% | 2009 |
|---|
| 32, Hyndewood851 m away | 103 m² | 134 m² | +31 m² +30% | 2024 |
|---|
| 13a, Cheseman Street529 m away | 49 m² | 80 m² | +31 m² +63% | 2021 |
|---|
| 42, Trilby Road938 m away | 66 m² | 97 m² | +31 m² +47% | 2021 |
|---|
| Flat 14, Fitzwilliam Heights, 21, Taymount Rise150 m away | 86 m² | 116 m² | +30 m² +35% | 2025 |
|---|
| Flat 15, Drakes Court, Devonshire Road791 m away | 45 m² | 75 m² | +30 m² +67% | 2024 |
|---|
| 36, Vestris Road999 m away | 69 m² | 99 m² | +30 m² +43% | 2023 |
|---|
| Flat 4, 111, Dartmouth Road444 m away | 42 m² | 72 m² | +30 m² +71% | 2013 |
|---|
| 23b, Church Rise790 m away | 123 m² | 152 m² | +29 m² +24% | 2022 |
|---|
| 71, Beadnell Road961 m away | 79 m² | 108 m² | +29 m² +37% | 2020 |
|---|
| 45, Thorpewood Avenue278 m away | 110 m² | 139 m² | +29 m² +26% | 2019 |
|---|
| Flat 4, 40 - 42, Ewelme Road732 m away | 36 m² | 65 m² | +29 m² +81% | 2016 |
|---|
| Flat 9, Wenlock House, 41, Stanstead Road644 m away | 55 m² | 83 m² | +28 m² +51% | 2024 |
|---|
| 6, Rojack Road765 m away | 84 m² | 112 m² | +28 m² +33% | 2024 |
|---|
| 43, Panmure Road653 m away | 133 m² | 161 m² | +28 m² +21% | 2022 |
|---|
| 96, Stanstead Road871 m away | 49 m² | 77 m² | +28 m² +57% | 2017 |
|---|
| Flat 2, 81, Devonshire Road712 m away | 41 m² | 69 m² | +28 m² +68% | 2016 |
|---|
| 5, Rockbourne Road759 m away | 117 m² | 145 m² | +28 m² +24% | 2016 |
|---|
| 6, St Pauls Conversion, Taymount Rise175 m away | 81 m² | 109 m² | +28 m² +35% | 2012 |
|---|
| 32, Derby Hill251 m away | 103 m² | 130 m² | +27 m² +26% | 2025 |
|---|
| 5, The Fieldings590 m away | 80 m² | 107 m² | +27 m² +34% | 2019 |
|---|
| 36, Rockbourne Road804 m away | 121 m² | 148 m² | +27 m² +22% | 2017 |
|---|
| 51 - 53, Canonbie Road978 m away | 120 m² | 147 m² | +27 m² +23% | 2012 |
|---|
| 77, Canonbie Road978 m away | 170 m² | 196 m² | +26 m² +15% | 2026 |
|---|
| 10, Whittell Gardens768 m away | 90 m² | 116 m² | +26 m² +29% | 2016 |
|---|
| 131, Honor Oak Road768 m away | 81 m² | 107 m² | +26 m² +32% | 2013 |
|---|
| 159, Honor Oak Road610 m away | 92 m² | 117 m² | +25 m² +27% | 2026 |
|---|
| 48, Derby Hill251 m away | 94 m² | 119 m² | +25 m² +27% | 2025 |
|---|
| Flat 1, 39, Sunderland Road924 m away | 49 m² | 74 m² | +25 m² +51% | 2025 |
|---|
| 61, Trilby Road969 m away | 66 m² | 91 m² | +25 m² +38% | 2021 |
|---|
| 40a, Honor Oak Road600 m away | 80 m² | 105 m² | +25 m² +31% | 2020 |
|---|
| 32, Dacres Road625 m away | 55 m² | 80 m² | +25 m² +45% | 2020 |
|---|
| 19, Rojack Road765 m away | 114 m² | 139 m² | +25 m² +22% | 2020 |
|---|
| 11, Charlecote Grove439 m away | 85 m² | 110 m² | +25 m² +29% | 2019 |
|---|
| 2, Fransfield Grove722 m away | 130 m² | 155 m² | +25 m² +19% | 2018 |
|---|
| 13, Whittell Gardens768 m away | 79 m² | 104 m² | +25 m² +32% | 2017 |
|---|
| 3, Dacres Road629 m away | 95 m² | 120 m² | +25 m² +26% | 2015 |
|---|
| 57, Crescent Wood Road862 m away | 102 m² | 127 m² | +25 m² +25% | 2011 |
|---|
| 39c, Dartmouth Road397 m away | 35 m² | 60 m² | +25 m² +71% | 2009 |
|---|
| 167, Dartmouth Road519 m away | 74 m² | 98 m² | +24 m² +32% | 2026 |
|---|
| 43, Ringmore Rise772 m away | 139 m² | 163 m² | +24 m² +17% | 2026 |
|---|
| 28, Honor Oak Road989 m away | 73 m² | 97 m² | +24 m² +33% | 2021 |
|---|
| 13, Taymount Rise150 m away | 50 m² | 74 m² | +24 m² +48% | 2019 |
|---|
| Flat 6, 26, Inglemere Road812 m away | 48 m² | 72 m² | +24 m² +50% | 2019 |
|---|
| 6, Dulwich Common946 m away | 139 m² | 163 m² | +24 m² +17% | 2017 |
|---|
| 29a, Dartmouth Road397 m away | 46 m² | 70 m² | +24 m² +52% | 2014 |
|---|
| 16, Century Yard335 m away | 56 m² | 80 m² | +24 m² +43% | 2011 |
|---|
| 39, Devonshire Road491 m away | 53 m² | 77 m² | +24 m² +45% | 2010 |
|---|
| 9a, Hyndewood898 m away | 83 m² | 107 m² | +24 m² +29% | 2010 |
|---|
| Flat 8, The Arc, 85, Willow Way754 m away | 65 m² | 88 m² | +23 m² +35% | 2025 |
|---|
| 42, Melford Road873 m away | 136 m² | 159 m² | +23 m² +17% | 2024 |
|---|
| 33, Mount Ash Road525 m away | 124 m² | 147 m² | +23 m² +19% | 2023 |
|---|
| 1, Mylis Close940 m away | 79 m² | 102 m² | +23 m² +29% | 2023 |
|---|
| Flat 5, 22, Underhill Road733 m away | 53 m² | 76 m² | +23 m² +43% | 2021 |
|---|
| 29, Crescent Wood Road862 m away | 129 m² | 152 m² | +23 m² +18% | 2020 |
|---|
| 29, Tewkesbury Avenue838 m away | 93 m² | 116 m² | +23 m² +25% | 2014 |
|---|
| 12, Charlecote Grove439 m away | 101 m² | 124 m² | +23 m² +23% | 2013 |
|---|
| 3, Sandown Court582 m away | 59 m² | 81 m² | +22 m² +37% | 2025 |
|---|
| 55, Canonbie Road978 m away | 138 m² | 160 m² | +22 m² +16% | 2025 |
|---|
| 33, Wood Vale600 m away | 48 m² | 70 m² | +22 m² +46% | 2023 |
|---|
| 31, Grassmount82 m away | 85 m² | 107 m² | +22 m² +26% | 2021 |
|---|
| Flat C, 561, Lordship Lane609 m away | 70 m² | 92 m² | +22 m² +31% | 2021 |
|---|
| Flat 17, Drakes Court, Devonshire Road791 m away | 55 m² | 77 m² | +22 m² +40% | 2020 |
|---|
| 20a, Benson Road808 m away | 80 m² | 102 m² | +22 m² +28% | 2020 |
|---|
| 41, Church Rise745 m away | 81 m² | 103 m² | +22 m² +27% | 2014 |
|---|
| Flat 15, Horniman Grange, 66, London Road320 m away | 31 m² | 53 m² | +22 m² +71% | 2013 |
|---|
| 73c, Dartmouth Road404 m away | 43 m² | 65 m² | +22 m² +51% | 2013 |
|---|
| 5, Tarleton Gardens214 m away | 104 m² | 125 m² | +21 m² +20% | 2025 |
|---|
| 47, London Road274 m away | 39 m² | 60 m² | +21 m² +54% | 2024 |
|---|
| 22, Otto Close406 m away | 62 m² | 83 m² | +21 m² +34% | 2024 |
|---|
| Flat A, 501, Lordship Lane896 m away | 62 m² | 83 m² | +21 m² +34% | 2016 |
|---|
| 15, Bradford Close941 m away | 59 m² | 80 m² | +21 m² +36% | 2015 |
|---|
| 11, Talmage Close885 m away | 86 m² | 107 m² | +21 m² +24% | 2012 |
|---|
| 117, London Road243 m away | 125 m² | 145 m² | +20 m² +16% | 2026 |
|---|
| 17, Wells Park Road880 m away | 77 m² | 97 m² | +20 m² +26% | 2026 |
|---|
| 4, Queens Garth, Taymount Rise202 m away | 68 m² | 88 m² | +20 m² +29% | 2024 |
|---|