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 7YA
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 Lane405 m away | 89 m² | 220 m² | +131 m² +147% | 2023 |
| 41, Elmers End Road246 m away | 116 m² | 201 m² | +85 m² +73% | 2025 |
| 29, Maple Road853 m away | 76 m² | 157 m² | +81 m² +107% | 2018 |
| 33, Sheringham Road206 m away | 82 m² | 160 m² | +78 m² +95% | 2019 |
| 191, Ravenscroft Road468 m away | 63 m² | 135 m² | +72 m² +114% | 2021 |
| 98, Avenue Road622 m away | 72 m² | 143 m² | +71 m² +99% | 2025 |
| 26, Ravenscroft Road844 m away | 89 m² | 157 m² | +68 m² +76% | 2025 |
| 115, Croydon Road507 m away | 261 m² | 329 m² | +68 m² +26% | 2017 |
| 19, Chesham Crescent546 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 |
| 15, Warwick Road389 m away | 114 m² | 179 m² | +65 m² +57% | 2021 |
|---|
| 19, Lincoln Road788 m away | 56 m² | 118 m² | +62 m² +111% | 2023 |
|---|
| 80, Ravenscroft Road844 m away | 102 m² | 164 m² | +62 m² +61% | 2020 |
|---|
| 50, Birkbeck Road908 m away | 106 m² | 166 m² | +60 m² +57% | 2025 |
|---|
| 152, Blandford Road753 m away | 83 m² | 143 m² | +60 m² +72% | 2021 |
|---|
| 58, Forster Road901 m away | 115 m² | 174 m² | +59 m² +51% | 2023 |
|---|
| 5a, Villiers Road610 m away | 92 m² | 151 m² | +59 m² +64% | 2019 |
|---|
| 171, Harrington Road765 m away | 47 m² | 103 m² | +56 m² +119% | 2023 |
|---|
| 62, Forster Road901 m away | 111 m² | 165 m² | +54 m² +49% | 2025 |
|---|
| 34, Jasmine Grove963 m away | 150 m² | 204 m² | +54 m² +36% | 2024 |
|---|
| 6, Kenilworth Road921 m away | 104 m² | 158 m² | +54 m² +52% | 2020 |
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| 81, Mackenzie Road737 m away | 60 m² | 113 m² | +53 m² +88% | 2022 |
|---|
| 204, Clock House Road846 m away | 84 m² | 134 m² | +50 m² +60% | 2026 |
|---|
| 35, Forster Road998 m away | 101 m² | 151 m² | +50 m² +50% | 2025 |
|---|
| 106, Mackenzie Road759 m away | 76 m² | 125 m² | +49 m² +64% | 2016 |
|---|
| 100, Forster Road901 m away | 98 m² | 147 m² | +49 m² +50% | 2016 |
|---|
| 167, Ravenscroft Road468 m away | 97 m² | 145 m² | +48 m² +49% | 2026 |
|---|
| 5, Kenilworth Road921 m away | 98 m² | 146 m² | +48 m² +49% | 2022 |
|---|
| 34, Pelham Road320 m away | 104 m² | 152 m² | +48 m² +46% | 2021 |
|---|
| 17, Villiers Road610 m away | 101 m² | 148 m² | +47 m² +47% | 2024 |
|---|
| 217, Clock House Road809 m away | 82 m² | 129 m² | +47 m² +57% | 2022 |
|---|
| 62, Tremaine Road404 m away | 138 m² | 185 m² | +47 m² +34% | 2019 |
|---|
| 91, Blandford Road766 m away | 72 m² | 118 m² | +46 m² +64% | 2026 |
|---|
| 311, Blandford Road231 m away | 86 m² | 131 m² | +45 m² +52% | 2022 |
|---|
| 386, Blandford Road271 m away | 71 m² | 116 m² | +45 m² +63% | 2022 |
|---|
| 29, Chartham Road646 m away | 75 m² | 120 m² | +45 m² +60% | 2021 |
|---|
| 29, Wheathill Road572 m away | 152 m² | 197 m² | +45 m² +30% | 2016 |
|---|
| 5, Dorset Road536 m away | 104 m² | 148 m² | +44 m² +42% | 2022 |
|---|
| 250, Blandford Road581 m away | 66 m² | 109 m² | +43 m² +65% | 2025 |
|---|
| 13, Gwydor Road724 m away | 114 m² | 157 m² | +43 m² +38% | 2023 |
|---|
| 29, Ash Grove315 m away | 85 m² | 128 m² | +43 m² +51% | 2022 |
|---|
| 16, Waverley Road680 m away | 77 m² | 120 m² | +43 m² +56% | 2017 |
|---|
| 155, Churchfields Road732 m away | 84 m² | 126 m² | +42 m² +50% | 2023 |
|---|
| 116, Mackenzie Road544 m away | 104 m² | 146 m² | +42 m² +40% | 2022 |
|---|
| 33, Kenilworth Road921 m away | 91 m² | 133 m² | +42 m² +46% | 2020 |
|---|
| 65, Kendall Road974 m away | 82 m² | 123 m² | +41 m² +50% | 2026 |
|---|
| 235, Birkbeck Road208 m away | 64 m² | 105 m² | +41 m² +64% | 2025 |
|---|
| 48, Chesham Road542 m away | 121 m² | 162 m² | +41 m² +34% | 2025 |
|---|
| 45, Hambrook Road646 m away | 76 m² | 117 m² | +41 m² +54% | 2025 |
|---|
| 61, Forster Road938 m away | 86 m² | 127 m² | +41 m² +48% | 2024 |
|---|
| 30, Felmingham Road102 m away | 72 m² | 113 m² | +41 m² +57% | 2023 |
|---|
| 3, Warwick Road389 m away | 101 m² | 142 m² | +41 m² +41% | 2022 |
|---|
| 7, Forster Road998 m away | 121 m² | 161 m² | +40 m² +33% | 2026 |
|---|
| 36, Pelham Road320 m away | 108 m² | 148 m² | +40 m² +37% | 2025 |
|---|
| 182, Harrington Road677 m away | 76 m² | 116 m² | +40 m² +53% | 2025 |
|---|
| 27, Brooklyn Road737 m away | 76 m² | 116 m² | +40 m² +53% | 2024 |
|---|
| 25, Clement Road561 m away | 82 m² | 122 m² | +40 m² +49% | 2023 |
|---|
| 54, Westgate Road935 m away | 77 m² | 117 m² | +40 m² +52% | 2022 |
|---|
| 53, Stembridge Road430 m away | 106 m² | 146 m² | +40 m² +38% | 2020 |
|---|
| 85, Ravenscroft Road855 m away | 91 m² | 130 m² | +39 m² +43% | 2024 |
|---|
| 134, Blandford Road753 m away | 110 m² | 148 m² | +38 m² +35% | 2023 |
|---|
| 130, Mackenzie Road544 m away | 95 m² | 132 m² | +37 m² +39% | 2026 |
|---|
| 301, Clock House Road922 m away | 67 m² | 104 m² | +37 m² +55% | 2026 |
|---|
| 15, Camille Close780 m away | 49 m² | 86 m² | +37 m² +76% | 2024 |
|---|
| 2, Kendall Road956 m away | 125 m² | 162 m² | +37 m² +30% | 2024 |
|---|
| 37, Kenilworth Road921 m away | 85 m² | 122 m² | +37 m² +44% | 2022 |
|---|
| 135, Harrington Road765 m away | 53 m² | 89 m² | +36 m² +68% | 2025 |
|---|
| 25, Westgate Road862 m away | 44 m² | 80 m² | +36 m² +82% | 2025 |
|---|
| 76, Blandford Road957 m away | 86 m² | 122 m² | +36 m² +42% | 2021 |
|---|
| 6, Wimborne Way925 m away | 88 m² | 124 m² | +36 m² +41% | 2019 |
|---|
| 1, Birkbeck Road912 m away | 45 m² | 81 m² | +36 m² +80% | 2018 |
|---|
| 70, Westgate Road935 m away | 87 m² | 123 m² | +36 m² +41% | 2012 |
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| 50, Allen Road431 m away | 90 m² | 125 m² | +35 m² +39% | 2025 |
|---|
| 129, Croydon Road507 m away | 227 m² | 262 m² | +35 m² +15% | 2024 |
|---|
| 120, Elmers End Road120 m away | 106 m² | 141 m² | +35 m² +33% | 2022 |
|---|
| 73, Ravenscroft Road855 m away | 101 m² | 136 m² | +35 m² +35% | 2022 |
|---|
| 4, Cambridge Road692 m away | 181 m² | 216 m² | +35 m² +19% | 2020 |
|---|
| 7, Blandford Avenue924 m away | 84 m² | 119 m² | +35 m² +42% | 2017 |
|---|
| 2, Wimborne Way925 m away | 91 m² | 126 m² | +35 m² +38% | 2017 |
|---|
| 16, Elmers End Road403 m away | 124 m² | 158 m² | +34 m² +27% | 2026 |
|---|
| 132, Birkbeck Road462 m away | 117 m² | 151 m² | +34 m² +29% | 2024 |
|---|
| 21, Warwick Road389 m away | 107 m² | 141 m² | +34 m² +32% | 2023 |
|---|
| Inchbare, Maple Road755 m away | 34 m² | 68 m² | +34 m² +100% | 2023 |
|---|
| 55, Brooklyn Road618 m away | 90 m² | 124 m² | +34 m² +38% | 2020 |
|---|
| 172, Birkbeck Road462 m away | 84 m² | 118 m² | +34 m² +40% | 2019 |
|---|
| 119, Mackenzie Road556 m away | 110 m² | 144 m² | +34 m² +31% | 2018 |
|---|
| 13, Stodart Road744 m away | 131 m² | 165 m² | +34 m² +26% | 2017 |
|---|
| 17, Padua Road847 m away | 61 m² | 95 m² | +34 m² +56% | 2016 |
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| 16, Padua Road847 m away | 119 m² | 152 m² | +33 m² +28% | 2026 |
|---|
| 116, Blandford Road753 m away | 85 m² | 118 m² | +33 m² +39% | 2023 |
|---|
| 36, Camille Close780 m away | 43 m² | 76 m² | +33 m² +77% | 2021 |
|---|
| 78, Cambridge Road692 m away | 82 m² | 115 m² | +33 m² +40% | 2018 |
|---|
| 143, Harrington Road765 m away | 79 m² | 112 m² | +33 m² +42% | 2017 |
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| 41, Waverley Road675 m away | 77 m² | 109 m² | +32 m² +42% | 2026 |
|---|
| 38, Birkbeck Road908 m away | 99 m² | 131 m² | +32 m² +32% | 2026 |
|---|
| 28, Bourdon Road278 m away | 99 m² | 131 m² | +32 m² +32% | 2024 |
|---|
| 64, Cambridge Road692 m away | 75 m² | 107 m² | +32 m² +43% | 2024 |
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| 29, Pelham Road284 m away | 102 m² | 134 m² | +32 m² +31% | 2022 |
|---|
| 28, Oak Grove Road479 m away | 80 m² | 112 m² | +32 m² +40% | 2021 |
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| 186, Clock House Road874 m away | 84 m² | 116 m² | +32 m² +38% | 2019 |
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| 5, Piquet Road81 m away | 118 m² | 150 m² | +32 m² +27% | 2018 |
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| 16, Blandford Road957 m away | 95 m² | 127 m² | +32 m² +34% | 2015 |
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| 30, Stembridge Road447 m away | 85 m² | 117 m² | +32 m² +38% | 2013 |
|---|
| 50a, Croydon Road906 m away | 69 m² | 100 m² | +31 m² +45% | 2021 |
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| 51, Chartham Road646 m away | 74 m² | 105 m² | +31 m² +42% | 2020 |
|---|
| 275, Clock House Road922 m away | 84 m² | 115 m² | +31 m² +37% | 2020 |
|---|
| 72a, Samos Road285 m away | 79 m² | 110 m² | +31 m² +39% | 2019 |
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| 40, Stodart Road744 m away | 103 m² | 134 m² | +31 m² +30% | 2019 |
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| 1, Wadhurst Close727 m away | 56 m² | 87 m² | +31 m² +55% | 2016 |
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| 20, Warwick Road375 m away | 112 m² | 143 m² | +31 m² +28% | 2014 |
|---|
| 105, Seymour Villas926 m away | 62 m² | 92 m² | +30 m² +48% | 2026 |
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| 46, Blandford Road957 m away | 98 m² | 128 m² | +30 m² +31% | 2025 |
|---|
| 94, Forster Road901 m away | 133 m² | 163 m² | +30 m² +23% | 2024 |
|---|
| 41, Arrol Road267 m away | 75 m² | 105 m² | +30 m² +40% | 2022 |
|---|
| 12, Cromer Road672 m away | 76 m² | 105 m² | +29 m² +38% | 2022 |
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| 170, Birkbeck Road462 m away | 86 m² | 115 m² | +29 m² +34% | 2020 |
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| 65, Cambridge Road661 m away | 70 m² | 99 m² | +29 m² +41% | 2020 |
|---|
| 49, Clevedon Road923 m away | 107 m² | 136 m² | +29 m² +27% | 2018 |
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| 50, Stembridge Road447 m away | 79 m² | 107 m² | +28 m² +35% | 2026 |
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| 109, Elmers End Road128 m away | 51 m² | 79 m² | +28 m² +55% | 2023 |
|---|
| 18, Eldon Park885 m away | 170 m² | 198 m² | +28 m² +16% | 2013 |
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| 123, Ravenscroft Road468 m away | 85 m² | 112 m² | +27 m² +32% | 2026 |
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| 4a, Tremaine Road404 m away | 53 m² | 80 m² | +27 m² +51% | 2023 |
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| 105, Avenue Road664 m away | 71 m² | 98 m² | +27 m² +38% | 2020 |
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| 76, Ravenscroft Road844 m away | 114 m² | 141 m² | +27 m² +24% | 2017 |
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| 94, Ravenscroft Road844 m away | 113 m² | 140 m² | +27 m² +24% | 2017 |
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| 166, Birkbeck Road462 m away | 87 m² | 113 m² | +26 m² +30% | 2020 |
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| 56, Selby Road846 m away | 104 m² | 130 m² | +26 m² +25% | 2020 |
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| 24, Chartham Road679 m away | 128 m² | 154 m² | +26 m² +20% | 2009 |
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| 193, Birkbeck Road401 m away | 94 m² | 119 m² | +25 m² +27% | 2026 |
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| 31, Chartham Road646 m away | 90 m² | 115 m² | +25 m² +28% | 2026 |
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| 14, Villiers Road610 m away | 73 m² | 98 m² | +25 m² +34% | 2024 |
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| 124, Blandford Road753 m away | 74 m² | 99 m² | +25 m² +34% | 2020 |
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| 29, Chesham Road542 m away | 55 m² | 80 m² | +25 m² +45% | 2019 |
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| 76, Mackenzie Road759 m away | 86 m² | 110 m² | +24 m² +28% | 2025 |
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| Flat 1, 45, Lincoln Road788 m away | 28 m² | 52 m² | +24 m² +86% | 2024 |
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| 1, Seymour Terrace890 m away | 138 m² | 162 m² | +24 m² +17% | 2024 |
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| 40, Kenilworth Road921 m away | 126 m² | 150 m² | +24 m² +19% | 2024 |
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| Flat 4, 180, Birkbeck Road462 m away | 49 m² | 73 m² | +24 m² +49% | 2022 |
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| 30, Birkbeck Road908 m away | 89 m² | 113 m² | +24 m² +27% | 2022 |
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| 114, Marlow Road338 m away | 99 m² | 123 m² | +24 m² +24% | 2020 |
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| 15, Wimborne Way925 m away | 54 m² | 78 m² | +24 m² +44% | 2019 |
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| 18, Piquet Road85 m away | 106 m² | 130 m² | +24 m² +23% | 2018 |
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| 66, Cambridge Road692 m away | 81 m² | 105 m² | +24 m² +30% | 2015 |
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| 30, Seymour Villas963 m away | 74 m² | 97 m² | +23 m² +31% | 2024 |
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| 27, Ash Grove315 m away | 101 m² | 124 m² | +23 m² +23% | 2022 |
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| 12, Villiers Road610 m away | 74 m² | 97 m² | +23 m² +31% | 2022 |
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| 76, Birkbeck Road756 m away | 92 m² | 115 m² | +23 m² +25% | 2022 |
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| 7c, Eldon Park885 m away | 59 m² | 82 m² | +23 m² +39% | 2019 |
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| Flat 10, Golden Mews, 15, Howard Road933 m away | 71 m² | 94 m² | +23 m² +32% | 2018 |
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| 8, Lincoln Road746 m away | 85 m² | 108 m² | +23 m² +27% | 2016 |
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| 20a, Ash Grove315 m away | 48 m² | 70 m² | +22 m² +46% | 2023 |
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| 8c, Eldon Park885 m away | 35 m² | 57 m² | +22 m² +63% | 2023 |
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| 4, Mackenzie Road928 m away | 103 m² | 125 m² | +22 m² +21% | 2023 |
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| 35, Sheringham Road206 m away | 83 m² | 105 m² | +22 m² +27% | 2021 |
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| 20, Kimberley Road696 m away | 64 m² | 86 m² | +22 m² +34% | 2021 |
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| 30, Blandford Avenue924 m away | 74 m² | 96 m² | +22 m² +30% | 2021 |
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| 7a, Howard Road933 m away | 85 m² | 107 m² | +22 m² +26% | 2020 |
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| 24a, Jasmine Grove963 m away | 31 m² | 53 m² | +22 m² +71% | 2020 |
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| Flat 6b, Ellesmere Court, Seymour Villas851 m away | 70 m² | 92 m² | +22 m² +31% | 2017 |
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| 20, Forster Road970 m away | 126 m² | 148 m² | +22 m² +17% | 2015 |
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| Flat 26, Roberts Court, Maple Road861 m away | 39 m² | 61 m² | +22 m² +56% | 2014 |
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| Flat 15, Penceat Court, 17, Bourdon Road262 m away | 29 m² | 51 m² | +22 m² +76% | 2013 |
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| 24, Wimborne Way925 m away | 71 m² | 93 m² | +22 m² +31% | 2013 |
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| Flat 46, Wheathill House, Croydon Road663 m away | 66 m² | 88 m² | +22 m² +33% | 2012 |
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| 34, Villiers Road610 m away | 87 m² | 108 m² | +21 m² +24% | 2024 |
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| 7a, Kendall Road974 m away | 57 m² | 78 m² | +21 m² +37% | 2024 |
|---|
| 51, Selby Road846 m away | 99 m² | 120 m² | +21 m² +21% | 2023 |
|---|
| 152, Ravenscroft Road478 m away | 66 m² | 87 m² | +21 m² +32% | 2022 |
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| 26, Felmingham Road102 m away | 75 m² | 96 m² | +21 m² +28% | 2021 |
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| 25, Seward Road651 m away | 96 m² | 117 m² | +21 m² +22% | 2021 |
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| 38, Camille Close780 m away | 40 m² | 61 m² | +21 m² +53% | 2021 |
|---|
| 45b, Royston Road838 m away | 67 m² | 88 m² | +21 m² +31% | 2020 |
|---|
| 133, Elmers End Road128 m away | 81 m² | 102 m² | +21 m² +26% | 2019 |
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| 30, Piquet Road85 m away | 83 m² | 104 m² | +21 m² +25% | 2018 |
|---|
| Flat 7, Woodbury Court, 199, Mackenzie Road370 m away | 31 m² | 52 m² | +21 m² +68% | 2018 |
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| Flat 49, Deverill Court, Avenue Road722 m away | 59 m² | 79 m² | +20 m² +34% | 2026 |
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| 243, Ravenscroft Road232 m away | 63 m² | 83 m² | +20 m² +32% | 2022 |
|---|
| 100, Blandford Road753 m away | 84 m² | 104 m² | +20 m² +24% | 2022 |
|---|
| 220b, Birkbeck Road219 m away | 21 m² | 41 m² | +20 m² +95% | 2020 |
|---|
| 79, Beck Lane405 m away | 92 m² | 112 m² | +20 m² +22% | 2019 |
|---|
| 172, Clock House Road874 m away | 78 m² | 98 m² | +20 m² +26% | 2017 |
|---|
| 102a, Croydon Road660 m away | 76 m² | 96 m² | +20 m² +26% | 2014 |
|---|
| 4, Sultan Street789 m away | 80 m² | 100 m² | +20 m² +25% | 2014 |
|---|
| 256, Clock House Road977 m away | 113 m² | 133 m² | +20 m² +18% | 2014 |
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| 26, Lonsdale Road824 m away | 94 m² | 114 m² | +20 m² +21% | 2013 |
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| 39, Cambridge Road661 m away | 93 m² | 113 m² | +20 m² +22% | 2012 |
|---|
| 175, Clock House Road850 m away | 86 m² | 105 m² | +19 m² +22% | 2026 |
|---|
| 34, Westgate Road935 m away | 77 m² | 96 m² | +19 m² +25% | 2026 |
|---|
| 147, Ravenscroft Road468 m away | 83 m² | 102 m² | +19 m² +23% | 2025 |
|---|
| 192a, Anerley Road920 m away | 40 m² | 59 m² | +19 m² +48% | 2025 |
|---|
| 18, Adair Close723 m away | 94 m² | 113 m² | +19 m² +20% | 2024 |
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| 22, Lonsdale Road824 m away | 78 m² | 97 m² | +19 m² +24% | 2024 |
|---|
| 6, Maberley Road621 m away | 81 m² | 100 m² | +19 m² +23% | 2023 |
|---|
| 168, Birkbeck Road462 m away | 97 m² | 116 m² | +19 m² +20% | 2019 |
|---|
| 57, Penge Road915 m away | 63 m² | 82 m² | +19 m² +30% | 2017 |
|---|
| 5, Cranleigh Close849 m away | 38 m² | 57 m² | +19 m² +50% | 2014 |
|---|
| 193, Elmers End Road419 m away | 102 m² | 120 m² | +18 m² +18% | 2024 |
|---|
| 26a, Felmingham Road102 m away | 47 m² | 65 m² | +18 m² +38% | 2023 |
|---|
| 205, Blandford Road580 m away | 74 m² | 92 m² | +18 m² +24% | 2023 |
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| Flat 16, Readman Court, 42, Jasmine Grove873 m away | 37 m² | 55 m² | +18 m² +49% | 2022 |
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