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 SE20 7UE
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 |
|---|---|---|---|---|
| 41, Beck Lane833 m away | 89 m² | 220 m² | +131 m² +147% | 2023 |
| 11, Court Road969 m away | 100 m² | 196 m² | +96 m² +96% | 2022 |
| 41, Elmers End Road426 m away | 116 m² | 201 m² | +85 m² +73% | 2025 |
| 29, Maple Road783 m away | 76 m² | 157 m² | +81 m² +107% | 2018 |
| 33, Sheringham Road263 m away | 82 m² | 160 m² | +78 m² +95% | 2019 |
| 191, Ravenscroft Road748 m away | 63 m² | 135 m² | +72 m² +114% | 2021 |
| 98, Avenue Road923 m away | 72 m² | 143 m² | +71 m² +99% | 2025 |
| 115, Croydon Road340 m away | 261 m² | 329 m² | +68 m² +26% | 2017 |
| 19, Chesham Crescent697 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.
| 105 m² |
| 172 m² |
| +67 m² +64% |
| 2014 |
| 22, Pittville Gardens630 m away | 123 m² | 189 m² | +66 m² +54% | 2024 |
|---|
| 29, Manor Road773 m away | 66 m² | 132 m² | +66 m² +100% | 2014 |
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| 15, Warwick Road272 m away | 114 m² | 179 m² | +65 m² +57% | 2021 |
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| 19, Lincoln Road543 m away | 56 m² | 118 m² | +62 m² +111% | 2023 |
|---|
| 5a, Villiers Road992 m away | 92 m² | 151 m² | +59 m² +64% | 2019 |
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| 171, Harrington Road698 m away | 47 m² | 103 m² | +56 m² +119% | 2023 |
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| 34, Jasmine Grove784 m away | 150 m² | 204 m² | +54 m² +36% | 2024 |
|---|
| 25, Addison Road937 m away | 114 m² | 164 m² | +50 m² +44% | 2015 |
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| 167, Ravenscroft Road748 m away | 97 m² | 145 m² | +48 m² +49% | 2026 |
|---|
| 34, Pelham Road621 m away | 104 m² | 152 m² | +48 m² +46% | 2021 |
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| 17, Villiers Road992 m away | 101 m² | 148 m² | +47 m² +47% | 2024 |
|---|
| 62, Tremaine Road114 m away | 138 m² | 185 m² | +47 m² +34% | 2019 |
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| 311, Blandford Road653 m away | 86 m² | 131 m² | +45 m² +52% | 2022 |
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| 386, Blandford Road677 m away | 71 m² | 116 m² | +45 m² +63% | 2022 |
|---|
| 29, Chartham Road458 m away | 75 m² | 120 m² | +45 m² +60% | 2021 |
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| 29, Wheathill Road211 m away | 152 m² | 197 m² | +45 m² +30% | 2016 |
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| 5, Dorset Road949 m away | 104 m² | 148 m² | +44 m² +42% | 2022 |
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| 250, Blandford Road946 m away | 66 m² | 109 m² | +43 m² +65% | 2025 |
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| 29, Ash Grove480 m away | 85 m² | 128 m² | +43 m² +51% | 2022 |
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| 16, Waverley Road583 m away | 77 m² | 120 m² | +43 m² +56% | 2017 |
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| 116, Mackenzie Road879 m away | 104 m² | 146 m² | +42 m² +40% | 2022 |
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| 57, Manor Road773 m away | 128 m² | 169 m² | +41 m² +32% | 2026 |
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| 45, Hambrook Road438 m away | 76 m² | 117 m² | +41 m² +54% | 2025 |
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| 235, Birkbeck Road550 m away | 64 m² | 105 m² | +41 m² +64% | 2025 |
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| 48, Chesham Road754 m away | 121 m² | 162 m² | +41 m² +34% | 2025 |
|---|
| 30, Felmingham Road332 m away | 72 m² | 113 m² | +41 m² +57% | 2023 |
|---|
| 3, Warwick Road272 m away | 101 m² | 142 m² | +41 m² +41% | 2022 |
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| 36, Pelham Road621 m away | 108 m² | 148 m² | +40 m² +37% | 2025 |
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| 182, Harrington Road695 m away | 76 m² | 116 m² | +40 m² +53% | 2025 |
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| 27, Brooklyn Road639 m away | 76 m² | 116 m² | +40 m² +53% | 2024 |
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| 25, Clement Road966 m away | 82 m² | 122 m² | +40 m² +49% | 2023 |
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| 54, Westgate Road896 m away | 77 m² | 117 m² | +40 m² +52% | 2022 |
|---|
| 53, Stembridge Road0 m away | 106 m² | 146 m² | +40 m² +38% | 2020 |
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| 130, Mackenzie Road879 m away | 95 m² | 132 m² | +37 m² +39% | 2026 |
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| 15, Camille Close446 m away | 49 m² | 86 m² | +37 m² +76% | 2024 |
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| 135, Harrington Road698 m away | 53 m² | 89 m² | +36 m² +68% | 2025 |
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| 25, Westgate Road822 m away | 44 m² | 80 m² | +36 m² +82% | 2025 |
|---|
| 70, Westgate Road896 m away | 87 m² | 123 m² | +36 m² +41% | 2012 |
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| 17, John Street886 m away | 76 m² | 111 m² | +35 m² +46% | 2026 |
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| 50, Allen Road827 m away | 90 m² | 125 m² | +35 m² +39% | 2025 |
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| 129, Croydon Road340 m away | 227 m² | 262 m² | +35 m² +15% | 2024 |
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| 120, Elmers End Road430 m away | 106 m² | 141 m² | +35 m² +33% | 2022 |
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| 4, Cambridge Road335 m away | 181 m² | 216 m² | +35 m² +19% | 2020 |
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| 68, Oakfield Road995 m away | 88 m² | 123 m² | +35 m² +40% | 2014 |
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| 16, Elmers End Road398 m away | 124 m² | 158 m² | +34 m² +27% | 2026 |
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| 132, Birkbeck Road767 m away | 117 m² | 151 m² | +34 m² +29% | 2024 |
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| 21, Warwick Road272 m away | 107 m² | 141 m² | +34 m² +32% | 2023 |
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| Inchbare, Maple Road592 m away | 34 m² | 68 m² | +34 m² +100% | 2023 |
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| 55, Brooklyn Road559 m away | 90 m² | 124 m² | +34 m² +38% | 2020 |
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| 172, Birkbeck Road767 m away | 84 m² | 118 m² | +34 m² +40% | 2019 |
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| 119, Mackenzie Road903 m away | 110 m² | 144 m² | +34 m² +31% | 2018 |
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| 13, Stodart Road723 m away | 131 m² | 165 m² | +34 m² +26% | 2017 |
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| 17, Padua Road861 m away | 61 m² | 95 m² | +34 m² +56% | 2016 |
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| 16, Padua Road861 m away | 119 m² | 152 m² | +33 m² +28% | 2026 |
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| 51, Harrington Road867 m away | 74 m² | 107 m² | +33 m² +45% | 2023 |
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| 36, Camille Close446 m away | 43 m² | 76 m² | +33 m² +77% | 2021 |
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| 78, Cambridge Road335 m away | 82 m² | 115 m² | +33 m² +40% | 2018 |
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| 143, Harrington Road698 m away | 79 m² | 112 m² | +33 m² +42% | 2017 |
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| 41, Waverley Road562 m away | 77 m² | 109 m² | +32 m² +42% | 2026 |
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| 6, Pembury Road959 m away | 60 m² | 92 m² | +32 m² +53% | 2026 |
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| 28, Bourdon Road262 m away | 99 m² | 131 m² | +32 m² +32% | 2024 |
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| 64, Cambridge Road335 m away | 75 m² | 107 m² | +32 m² +43% | 2024 |
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| 29, Pelham Road590 m away | 102 m² | 134 m² | +32 m² +31% | 2022 |
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| 28, Oak Grove Road538 m away | 80 m² | 112 m² | +32 m² +40% | 2021 |
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| 5, Piquet Road399 m away | 118 m² | 150 m² | +32 m² +27% | 2018 |
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| 30, Stembridge Road38 m away | 85 m² | 117 m² | +32 m² +38% | 2013 |
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| 50a, Croydon Road981 m away | 69 m² | 100 m² | +31 m² +45% | 2021 |
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| 51, Chartham Road458 m away | 74 m² | 105 m² | +31 m² +42% | 2020 |
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| 72a, Samos Road192 m away | 79 m² | 110 m² | +31 m² +39% | 2019 |
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| 40, Stodart Road723 m away | 103 m² | 134 m² | +31 m² +30% | 2019 |
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| 1, Wadhurst Close318 m away | 56 m² | 87 m² | +31 m² +55% | 2016 |
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| 4, Silvermere Row794 m away | 86 m² | 117 m² | +31 m² +36% | 2015 |
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| 20, Warwick Road311 m away | 112 m² | 143 m² | +31 m² +28% | 2014 |
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| 9d, Warminster Road717 m away | 59 m² | 90 m² | +31 m² +53% | 2009 |
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| 105, Seymour Villas606 m away | 62 m² | 92 m² | +30 m² +48% | 2026 |
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| 41, Arrol Road694 m away | 75 m² | 105 m² | +30 m² +40% | 2022 |
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| 58, Apsley Road947 m away | 71 m² | 101 m² | +30 m² +42% | 2022 |
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| 12, Cromer Road415 m away | 76 m² | 105 m² | +29 m² +38% | 2022 |
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| 65, Cambridge Road300 m away | 70 m² | 99 m² | +29 m² +41% | 2020 |
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| 170, Birkbeck Road767 m away | 86 m² | 115 m² | +29 m² +34% | 2020 |
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| 3, Seymour Place998 m away | 73 m² | 102 m² | +29 m² +40% | 2013 |
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| 50, Stembridge Road38 m away | 79 m² | 107 m² | +28 m² +35% | 2026 |
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| 109, Elmers End Road479 m away | 51 m² | 79 m² | +28 m² +55% | 2023 |
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| 18, Eldon Park679 m away | 170 m² | 198 m² | +28 m² +16% | 2013 |
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| 123, Ravenscroft Road748 m away | 85 m² | 112 m² | +27 m² +32% | 2026 |
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| 4a, Tremaine Road114 m away | 53 m² | 80 m² | +27 m² +51% | 2023 |
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| 54, Apsley Road947 m away | 100 m² | 127 m² | +27 m² +27% | 2021 |
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| 105, Avenue Road960 m away | 71 m² | 98 m² | +27 m² +38% | 2020 |
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| 56, Selby Road420 m away | 104 m² | 130 m² | +26 m² +25% | 2020 |
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| 166, Birkbeck Road767 m away | 87 m² | 113 m² | +26 m² +30% | 2020 |
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| 2c, Hawthorn Grove896 m away | 96 m² | 122 m² | +26 m² +27% | 2014 |
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| 24, Chartham Road503 m away | 128 m² | 154 m² | +26 m² +20% | 2009 |
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| 33, Lancaster Road822 m away | 79 m² | 105 m² | +26 m² +33% | 2009 |
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| 31, Chartham Road458 m away | 90 m² | 115 m² | +25 m² +28% | 2026 |
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| 193, Birkbeck Road725 m away | 94 m² | 119 m² | +25 m² +27% | 2026 |
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| 14, Villiers Road992 m away | 73 m² | 98 m² | +25 m² +34% | 2024 |
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| 119 - 121, Portland Road993 m away | 61 m² | 86 m² | +25 m² +41% | 2023 |
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| 29, Chesham Road754 m away | 55 m² | 80 m² | +25 m² +45% | 2019 |
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| 54, Warminster Road680 m away | 106 m² | 131 m² | +25 m² +24% | 2015 |
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| 1, Seymour Terrace537 m away | 138 m² | 162 m² | +24 m² +17% | 2024 |
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| Flat 1, 45, Lincoln Road543 m away | 28 m² | 52 m² | +24 m² +86% | 2024 |
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| Flat 4, 180, Birkbeck Road767 m away | 49 m² | 73 m² | +24 m² +49% | 2022 |
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| 87d, Albert Road799 m away | 47 m² | 71 m² | +24 m² +51% | 2021 |
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| 114, Marlow Road120 m away | 99 m² | 123 m² | +24 m² +24% | 2020 |
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| 18, Piquet Road369 m away | 106 m² | 130 m² | +24 m² +23% | 2018 |
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| Flat 5, 26, Chestnut Grove957 m away | 45 m² | 69 m² | +24 m² +53% | 2017 |
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| Flat 3, Ridgway Court, 22, Lancaster Road870 m away | 38 m² | 62 m² | +24 m² +63% | 2016 |
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| 66, Cambridge Road335 m away | 81 m² | 105 m² | +24 m² +30% | 2015 |
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| 45, Lancaster Road932 m away | 132 m² | 155 m² | +23 m² +17% | 2025 |
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| 30, Seymour Villas642 m away | 74 m² | 97 m² | +23 m² +31% | 2024 |
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| 27, Ash Grove480 m away | 101 m² | 124 m² | +23 m² +23% | 2022 |
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| 12, Villiers Road992 m away | 74 m² | 97 m² | +23 m² +31% | 2022 |
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| 7c, Eldon Park679 m away | 59 m² | 82 m² | +23 m² +39% | 2019 |
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| Flat 10, Golden Mews, 15, Howard Road971 m away | 71 m² | 94 m² | +23 m² +32% | 2018 |
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| 58, Hawthorn Grove896 m away | 52 m² | 75 m² | +23 m² +44% | 2017 |
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| 8, Lincoln Road498 m away | 85 m² | 108 m² | +23 m² +27% | 2016 |
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| 65, William Booth Road954 m away | 40 m² | 63 m² | +23 m² +57% | 2014 |
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| 41, William Booth Road954 m away | 40 m² | 63 m² | +23 m² +57% | 2014 |
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| 20a, Ash Grove480 m away | 48 m² | 70 m² | +22 m² +46% | 2023 |
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| 8c, Eldon Park679 m away | 35 m² | 57 m² | +22 m² +63% | 2023 |
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| 35, Sheringham Road263 m away | 83 m² | 105 m² | +22 m² +27% | 2021 |
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| 24a, Jasmine Grove784 m away | 31 m² | 53 m² | +22 m² +71% | 2020 |
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| 7a, Howard Road971 m away | 85 m² | 107 m² | +22 m² +26% | 2020 |
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| Flat 6b, Ellesmere Court, Seymour Villas475 m away | 70 m² | 92 m² | +22 m² +31% | 2017 |
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| Flat 26, Roberts Court, Maple Road828 m away | 39 m² | 61 m² | +22 m² +56% | 2014 |
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| Flat 15, Penceat Court, 17, Bourdon Road302 m away | 29 m² | 51 m² | +22 m² +76% | 2013 |
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| Flat 46, Wheathill House, Croydon Road236 m away | 66 m² | 88 m² | +22 m² +33% | 2012 |
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| 34, Villiers Road992 m away | 87 m² | 108 m² | +21 m² +24% | 2024 |
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| 51, Selby Road420 m away | 99 m² | 120 m² | +21 m² +21% | 2023 |
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| 152, Ravenscroft Road737 m away | 66 m² | 87 m² | +21 m² +32% | 2022 |
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| 55, Apsley Road947 m away | 65 m² | 86 m² | +21 m² +32% | 2022 |
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| 26, Felmingham Road332 m away | 75 m² | 96 m² | +21 m² +28% | 2021 |
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| 38, Camille Close446 m away | 40 m² | 61 m² | +21 m² +53% | 2021 |
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| 133, Elmers End Road479 m away | 81 m² | 102 m² | +21 m² +26% | 2019 |
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| 30, Piquet Road369 m away | 83 m² | 104 m² | +21 m² +25% | 2018 |
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| Flat 7, Woodbury Court, 199, Mackenzie Road736 m away | 31 m² | 52 m² | +21 m² +68% | 2018 |
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| Flat 49, Deverill Court, Avenue Road867 m away | 59 m² | 79 m² | +20 m² +34% | 2026 |
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| 243, Ravenscroft Road501 m away | 63 m² | 83 m² | +20 m² +32% | 2022 |
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| 220b, Birkbeck Road531 m away | 21 m² | 41 m² | +20 m² +95% | 2020 |
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| 79, Beck Lane833 m away | 92 m² | 112 m² | +20 m² +22% | 2019 |
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| 11a, Seymour Place998 m away | 33 m² | 53 m² | +20 m² +61% | 2019 |
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| 102a, Croydon Road669 m away | 76 m² | 96 m² | +20 m² +26% | 2014 |
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| 18, Cresswell Road868 m away | 92 m² | 112 m² | +20 m² +22% | 2014 |
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| 26, Lonsdale Road651 m away | 94 m² | 114 m² | +20 m² +21% | 2013 |
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| 39, Cambridge Road300 m away | 93 m² | 113 m² | +20 m² +22% | 2012 |
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| 34, Westgate Road896 m away | 77 m² | 96 m² | +19 m² +25% | 2026 |
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| 192a, Anerley Road645 m away | 40 m² | 59 m² | +19 m² +48% | 2025 |
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| 147, Ravenscroft Road748 m away | 83 m² | 102 m² | +19 m² +23% | 2025 |
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| 18, Adair Close428 m away | 94 m² | 113 m² | +19 m² +20% | 2024 |
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| 22, Lonsdale Road651 m away | 78 m² | 97 m² | +19 m² +24% | 2024 |
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| 168, Birkbeck Road767 m away | 97 m² | 116 m² | +19 m² +20% | 2019 |
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| 57, Penge Road526 m away | 63 m² | 82 m² | +19 m² +30% | 2017 |
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| 23, Ridsdale Road976 m away | 45 m² | 64 m² | +19 m² +42% | 2015 |
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| 5, Cranleigh Close501 m away | 38 m² | 57 m² | +19 m² +50% | 2014 |
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| Flat 6, Drake Court, Warminster Road847 m away | 48 m² | 67 m² | +19 m² +40% | 2012 |
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| 193, Elmers End Road821 m away | 102 m² | 120 m² | +18 m² +18% | 2024 |
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| 26a, Felmingham Road332 m away | 47 m² | 65 m² | +18 m² +38% | 2023 |
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| 205, Blandford Road954 m away | 74 m² | 92 m² | +18 m² +24% | 2023 |
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| Flat 16, Readman Court, 42, Jasmine Grove733 m away | 37 m² | 55 m² | +18 m² +49% | 2022 |
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| 145, Mackenzie Road903 m away | 102 m² | 120 m² | +18 m² +18% | 2021 |
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| Flat 11, 175, Anerley Road678 m away | 42 m² | 60 m² | +18 m² +43% | 2020 |
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| 101, Tovil Close357 m away | 82 m² | 100 m² | +18 m² +22% | 2019 |
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| 12, Sheldon Close708 m away | 43 m² | 61 m² | +18 m² +42% | 2015 |
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| Flat 12, Ellesmere Court, Seymour Villas475 m away | 69 m² | 87 m² | +18 m² +26% | 2012 |
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| 185a, Anerley Road577 m away | 70 m² | 88 m² | +18 m² +26% | 2011 |
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| 21, Apsley Road947 m away | 101 m² | 119 m² | +18 m² +18% | 2010 |
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| 131, Mackenzie Road903 m away | 48 m² | 66 m² | +18 m² +38% | 2009 |
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| 89, Lancaster Road932 m away | 93 m² | 110 m² | +17 m² +18% | 2025 |
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| 3, Arrol Road694 m away | 92 m² | 109 m² | +17 m² +18% | 2023 |
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| 4, Shirley Row818 m away | 99 m² | 116 m² | +17 m² +17% | 2023 |
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| 2, Pittville Gardens630 m away | 92 m² | 109 m² | +17 m² +18% | 2022 |
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| Flat C, 7, Chalfont Road979 m away | 32 m² | 49 m² | +17 m² +53% | 2022 |
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| 30, Avenue Road879 m away | 107 m² | 124 m² | +17 m² +16% | 2021 |
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| Flat 5, Toli Court, 71, Avenue Road937 m away | 78 m² | 95 m² | +17 m² +22% | 2021 |
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| 56, Cambridge Road335 m away | 90 m² | 107 m² | +17 m² +19% | 2018 |
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| 30a, High Street945 m away | 74 m² | 91 m² | +17 m² +23% | 2016 |
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| 47a, Marlow Road207 m away | 72 m² | 89 m² | +17 m² +24% | 2015 |
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| Flat 1, Eldon Court, Eldon Park747 m away | 57 m² | 74 m² | +17 m² +30% | 2014 |
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| 71, Maple Road925 m away | 76 m² | 93 m² | +17 m² +22% | 2014 |
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| Flat 6, Golden Mews, 15, Howard Road971 m away | 54 m² | 70 m² | +16 m² +30% | 2025 |
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| 9a, Chalfont Road979 m away | 41 m² | 57 m² | +16 m² +39% | 2025 |
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| 51, Hambrook Road438 m away | 68 m² | 84 m² | +16 m² +24% | 2024 |
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| 400, Blandford Road677 m away | 85 m² | 101 m² | +16 m² +19% | 2024 |
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| Regal House, 28a, Kings Road468 m away | 49 m² | 65 m² | +16 m² +33% | 2023 |
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| 85, Avenue Road960 m away | 37 m² | 53 m² | +16 m² +43% | 2022 |
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| 1 Grace Mews, 40, Marlow Road251 m away | 92 m² | 108 m² | +16 m² +17% | 2021 |
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| 21a, Padua Road861 m away | 38 m² | 54 m² | +16 m² +42% | 2021 |
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| Flat 4, 141, Croydon Road340 m away | 41 m² | 57 m² | +16 m² +39% | 2020 |
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| 1, Thornsett Terrace196 m away | 80 m² | 96 m² | +16 m² +20% | 2018 |
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| 259a, Mackenzie Road610 m away | 65 m² | 81 m² | +16 m² +25% | 2016 |
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| 13, Hambrook Road438 m away | 84 m² | 100 m² | +16 m² +19% | 2015 |
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