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 BR3 4LA
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 |
|---|---|---|---|---|
| 1a, Whitmore Road657 m away | 144 m² | 292 m² | +148 m² +103% | 2022 |
| 41, Beck Lane475 m away | 89 m² | 220 m² | +131 m² +147% | 2023 |
| 35, Hayne Road791 m away | 199 m² | 305 m² | +106 m² +53% | 2014 |
| 27, Clock House Road596 m away | 64 m² | 152 m² | +88 m² +138% | 2024 |
| 41, Elmers End Road977 m away | 116 m² | 201 m² | +85 m² +73% | 2025 |
| 194, Beckenham Road938 m away | 337 m² | 418 m² | +81 m² +24% | 2017 |
| 45, Cromwell Road251 m away | 135 m² | 213 m² | +78 m² +58% | 2023 |
| 50, Gordon Road613 m away | 93 m² | 169 m² | +76 m² +82% | 2024 |
| 57, Hampden Avenue493 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.
| 98 m² |
| 170 m² |
| +72 m² +73% |
| 2025 |
| 191, Ravenscroft Road818 m away | 63 m² | 135 m² | +72 m² +114% | 2021 |
|---|
| 98, Avenue Road762 m away | 72 m² | 143 m² | +71 m² +99% | 2025 |
|---|
| 13, Whitmore Road657 m away | 102 m² | 173 m² | +71 m² +70% | 2022 |
|---|
| 45, St James'S Avenue158 m away | 110 m² | 179 m² | +69 m² +63% | 2017 |
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| 26, Ravenscroft Road896 m away | 89 m² | 157 m² | +68 m² +76% | 2025 |
|---|
| 16, Westfield Road899 m away | 145 m² | 210 m² | +65 m² +45% | 2023 |
|---|
| 12, Cedars Road806 m away | 231 m² | 294 m² | +63 m² +27% | 2026 |
|---|
| 102, Village Way949 m away | 120 m² | 183 m² | +63 m² +53% | 2020 |
|---|
| 61, Whitmore Road816 m away | 160 m² | 223 m² | +63 m² +39% | 2016 |
|---|
| 80, Ravenscroft Road896 m away | 102 m² | 164 m² | +62 m² +61% | 2020 |
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| 50, Birkbeck Road849 m away | 106 m² | 166 m² | +60 m² +57% | 2025 |
|---|
| 152, Blandford Road615 m away | 83 m² | 143 m² | +60 m² +72% | 2021 |
|---|
| 35, Hampden Road378 m away | 73 m² | 133 m² | +60 m² +82% | 2018 |
|---|
| 295, Beckenham Road941 m away | 125 m² | 185 m² | +60 m² +48% | 2016 |
|---|
| 53, Groveland Road747 m away | 100 m² | 159 m² | +59 m² +59% | 2025 |
|---|
| 58, Forster Road112 m away | 115 m² | 174 m² | +59 m² +51% | 2023 |
|---|
| 5a, Villiers Road519 m away | 92 m² | 151 m² | +59 m² +64% | 2019 |
|---|
| 22, Shrewsbury Road323 m away | 98 m² | 155 m² | +57 m² +58% | 2025 |
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| 55, Birchwood Avenue759 m away | 92 m² | 148 m² | +56 m² +61% | 2023 |
|---|
| 22, Glanfield Road967 m away | 92 m² | 148 m² | +56 m² +61% | 2022 |
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| 31, Whitmore Road657 m away | 196 m² | 252 m² | +56 m² +29% | 2019 |
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| 1, Groveland Road575 m away | 108 m² | 163 m² | +55 m² +51% | 2019 |
|---|
| 62, Forster Road112 m away | 111 m² | 165 m² | +54 m² +49% | 2025 |
|---|
| 81, Mackenzie Road671 m away | 60 m² | 113 m² | +53 m² +88% | 2022 |
|---|
| 204, Clock House Road142 m away | 84 m² | 134 m² | +50 m² +60% | 2026 |
|---|
| 35, Forster Road147 m away | 101 m² | 151 m² | +50 m² +50% | 2025 |
|---|
| 53, St James'S Avenue158 m away | 108 m² | 158 m² | +50 m² +46% | 2022 |
|---|
| 100, Forster Road112 m away | 98 m² | 147 m² | +49 m² +50% | 2016 |
|---|
| 106, Mackenzie Road715 m away | 76 m² | 125 m² | +49 m² +64% | 2016 |
|---|
| 167, Ravenscroft Road818 m away | 97 m² | 145 m² | +48 m² +49% | 2026 |
|---|
| 54, Stanhope Grove998 m away | 100 m² | 148 m² | +48 m² +48% | 2026 |
|---|
| 37, Belmont Road572 m away | 86 m² | 134 m² | +48 m² +56% | 2024 |
|---|
| 34, Pelham Road818 m away | 104 m² | 152 m² | +48 m² +46% | 2021 |
|---|
| 13, Eden Park Avenue481 m away | 86 m² | 134 m² | +48 m² +56% | 2020 |
|---|
| 70, Durban Road657 m away | 93 m² | 141 m² | +48 m² +52% | 2019 |
|---|
| 13, Durban Road642 m away | 90 m² | 138 m² | +48 m² +53% | 2018 |
|---|
| 17, Villiers Road519 m away | 101 m² | 148 m² | +47 m² +47% | 2024 |
|---|
| 217, Clock House Road140 m away | 82 m² | 129 m² | +47 m² +57% | 2022 |
|---|
| 34, Hampden Road343 m away | 94 m² | 141 m² | +47 m² +50% | 2021 |
|---|
| 31, Cromwell Road251 m away | 120 m² | 167 m² | +47 m² +39% | 2016 |
|---|
| 91, Blandford Road589 m away | 72 m² | 118 m² | +46 m² +64% | 2026 |
|---|
| 90, Durban Road657 m away | 90 m² | 136 m² | +46 m² +51% | 2025 |
|---|
| 55, Cherry Tree Walk811 m away | 87 m² | 133 m² | +46 m² +53% | 2025 |
|---|
| 145a, Croydon Road428 m away | 35 m² | 81 m² | +46 m² +131% | 2024 |
|---|
| 32, Birchwood Avenue723 m away | 94 m² | 140 m² | +46 m² +49% | 2022 |
|---|
| 386, Blandford Road656 m away | 71 m² | 116 m² | +45 m² +63% | 2022 |
|---|
| 311, Blandford Road659 m away | 86 m² | 131 m² | +45 m² +52% | 2022 |
|---|
| 57, Belmont Road572 m away | 133 m² | 177 m² | +44 m² +33% | 2025 |
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| 32, Hampden Road343 m away | 95 m² | 139 m² | +44 m² +46% | 2022 |
|---|
| 5, Dorset Road422 m away | 104 m² | 148 m² | +44 m² +42% | 2022 |
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| 250, Blandford Road588 m away | 66 m² | 109 m² | +43 m² +65% | 2025 |
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| 13, Gwydor Road364 m away | 114 m² | 157 m² | +43 m² +38% | 2023 |
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| 48, Bramerton Road821 m away | 113 m² | 156 m² | +43 m² +38% | 2023 |
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| 29, Ash Grove987 m away | 85 m² | 128 m² | +43 m² +51% | 2022 |
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| 155, Churchfields Road398 m away | 84 m² | 126 m² | +42 m² +50% | 2023 |
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| 90, Belmont Road519 m away | 74 m² | 116 m² | +42 m² +57% | 2023 |
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| 116, Mackenzie Road684 m away | 104 m² | 146 m² | +42 m² +40% | 2022 |
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| 123, Stanhope Grove954 m away | 102 m² | 144 m² | +42 m² +41% | 2022 |
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| 65, Kendall Road468 m away | 82 m² | 123 m² | +41 m² +50% | 2026 |
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| 235, Birkbeck Road810 m away | 64 m² | 105 m² | +41 m² +64% | 2025 |
|---|
| 48, Chesham Road937 m away | 121 m² | 162 m² | +41 m² +34% | 2025 |
|---|
| 61, Forster Road128 m away | 86 m² | 127 m² | +41 m² +48% | 2024 |
|---|
| 12, Cromwell Road385 m away | 99 m² | 140 m² | +41 m² +41% | 2024 |
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| 65, Goddard Road732 m away | 82 m² | 123 m² | +41 m² +50% | 2023 |
|---|
| 30, Felmingham Road973 m away | 72 m² | 113 m² | +41 m² +57% | 2023 |
|---|
| 13, Cherry Tree Walk827 m away | 86 m² | 127 m² | +41 m² +48% | 2022 |
|---|
| 42, Clock House Road622 m away | 139 m² | 180 m² | +41 m² +29% | 2020 |
|---|
| 7, Forster Road147 m away | 121 m² | 161 m² | +40 m² +33% | 2026 |
|---|
| 36, Pelham Road818 m away | 108 m² | 148 m² | +40 m² +37% | 2025 |
|---|
| 25, Clement Road445 m away | 82 m² | 122 m² | +40 m² +49% | 2023 |
|---|
| 43, Durban Road642 m away | 89 m² | 129 m² | +40 m² +45% | 2017 |
|---|
| 84, Clock House Road368 m away | 123 m² | 162 m² | +39 m² +32% | 2026 |
|---|
| 30, Colesburg Road484 m away | 86 m² | 125 m² | +39 m² +45% | 2026 |
|---|
| 85, Ravenscroft Road868 m away | 91 m² | 130 m² | +39 m² +43% | 2024 |
|---|
| 285, Beckenham Road941 m away | 59 m² | 97 m² | +38 m² +64% | 2026 |
|---|
| 134, Blandford Road615 m away | 110 m² | 148 m² | +38 m² +35% | 2023 |
|---|
| 44, Durban Road657 m away | 91 m² | 129 m² | +38 m² +42% | 2020 |
|---|
| 301, Clock House Road272 m away | 67 m² | 104 m² | +37 m² +55% | 2026 |
|---|
| 51, Belmont Road572 m away | 99 m² | 136 m² | +37 m² +37% | 2026 |
|---|
| 130, Mackenzie Road684 m away | 95 m² | 132 m² | +37 m² +39% | 2026 |
|---|
| 174, Beckenham Road938 m away | 178 m² | 215 m² | +37 m² +21% | 2026 |
|---|
| 2, Kendall Road478 m away | 125 m² | 162 m² | +37 m² +30% | 2024 |
|---|
| 11, Shaftesbury Road920 m away | 100 m² | 137 m² | +37 m² +37% | 2022 |
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| 76, Blandford Road708 m away | 86 m² | 122 m² | +36 m² +42% | 2021 |
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| 6, Wimborne Way354 m away | 88 m² | 124 m² | +36 m² +41% | 2019 |
|---|
| 49, Hampden Road378 m away | 93 m² | 129 m² | +36 m² +39% | 2019 |
|---|
| 1, Birkbeck Road821 m away | 45 m² | 81 m² | +36 m² +80% | 2018 |
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| 19, Derrick Road614 m away | 94 m² | 130 m² | +36 m² +38% | 2016 |
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| 52, Broomfield Road468 m away | 99 m² | 134 m² | +35 m² +35% | 2025 |
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| 50, Allen Road560 m away | 90 m² | 125 m² | +35 m² +39% | 2025 |
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| 68, Durban Road657 m away | 107 m² | 142 m² | +35 m² +33% | 2022 |
|---|
| 73, Ravenscroft Road868 m away | 101 m² | 136 m² | +35 m² +35% | 2022 |
|---|
| 120, Elmers End Road898 m away | 106 m² | 141 m² | +35 m² +33% | 2022 |
|---|
| 2, Wimborne Way354 m away | 91 m² | 126 m² | +35 m² +38% | 2017 |
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| 28, Colesburg Road484 m away | 91 m² | 126 m² | +35 m² +38% | 2017 |
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| 7, Blandford Avenue619 m away | 84 m² | 119 m² | +35 m² +42% | 2017 |
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| 277, Beckenham Road941 m away | 103 m² | 138 m² | +35 m² +34% | 2014 |
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| 50, Glanfield Road967 m away | 95 m² | 129 m² | +34 m² +36% | 2025 |
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| 132, Birkbeck Road770 m away | 117 m² | 151 m² | +34 m² +29% | 2024 |
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| 84, Bramerton Road821 m away | 106 m² | 140 m² | +34 m² +32% | 2022 |
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| 24, Faversham Road970 m away | 82 m² | 116 m² | +34 m² +41% | 2021 |
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| 18, Hampden Avenue428 m away | 100 m² | 134 m² | +34 m² +34% | 2020 |
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| 172, Birkbeck Road770 m away | 84 m² | 118 m² | +34 m² +40% | 2019 |
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| 119, Mackenzie Road649 m away | 110 m² | 144 m² | +34 m² +31% | 2018 |
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| 3, Acacia Road503 m away | 67 m² | 100 m² | +33 m² +49% | 2024 |
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| 116, Blandford Road615 m away | 85 m² | 118 m² | +33 m² +39% | 2023 |
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| 7, Raymond Road645 m away | 104 m² | 137 m² | +33 m² +32% | 2017 |
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| 38, Birkbeck Road849 m away | 99 m² | 131 m² | +32 m² +32% | 2026 |
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| 29, Pelham Road823 m away | 102 m² | 134 m² | +32 m² +31% | 2022 |
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| 186, Clock House Road0 m away | 84 m² | 116 m² | +32 m² +38% | 2019 |
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| 85, Groveland Road747 m away | 84 m² | 116 m² | +32 m² +38% | 2019 |
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| 5, Piquet Road915 m away | 118 m² | 150 m² | +32 m² +27% | 2018 |
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| 16, Blandford Road708 m away | 95 m² | 127 m² | +32 m² +34% | 2015 |
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| 5, Birchwood Avenue759 m away | 107 m² | 138 m² | +31 m² +29% | 2026 |
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| 275, Clock House Road272 m away | 84 m² | 115 m² | +31 m² +37% | 2020 |
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| Flat 7, Clock House Court, Clock House Road693 m away | 39 m² | 70 m² | +31 m² +79% | 2019 |
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| 22, Hampden Avenue428 m away | 103 m² | 133 m² | +30 m² +29% | 2026 |
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| 46, Blandford Road708 m away | 98 m² | 128 m² | +30 m² +31% | 2025 |
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| 94, Forster Road112 m away | 133 m² | 163 m² | +30 m² +23% | 2024 |
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| 41, Arrol Road615 m away | 75 m² | 105 m² | +30 m² +40% | 2022 |
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| 17, Durban Road642 m away | 89 m² | 119 m² | +30 m² +34% | 2021 |
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| 3, Durban Road642 m away | 80 m² | 110 m² | +30 m² +38% | 2017 |
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| 13, Bramerton Road630 m away | 112 m² | 142 m² | +30 m² +27% | 2014 |
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| 150, Beckenham Road938 m away | 178 m² | 207 m² | +29 m² +16% | 2021 |
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| 170, Birkbeck Road770 m away | 86 m² | 115 m² | +29 m² +34% | 2020 |
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| 1a, Cedars Road760 m away | 109 m² | 138 m² | +29 m² +27% | 2018 |
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| 14, Durban Road657 m away | 101 m² | 130 m² | +29 m² +29% | 2017 |
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| 12, Bramerton Road611 m away | 121 m² | 149 m² | +28 m² +23% | 2025 |
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| 54, Goddard Road782 m away | 87 m² | 115 m² | +28 m² +32% | 2025 |
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| 109, Elmers End Road851 m away | 51 m² | 79 m² | +28 m² +55% | 2023 |
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| 265a, Beckenham Road941 m away | 74 m² | 102 m² | +28 m² +38% | 2021 |
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| 27, Hampden Road378 m away | 93 m² | 121 m² | +28 m² +30% | 2019 |
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| 51, Durban Road642 m away | 88 m² | 116 m² | +28 m² +32% | 2010 |
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| 123, Ravenscroft Road818 m away | 85 m² | 112 m² | +27 m² +32% | 2026 |
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| 26, Churchfields Road702 m away | 86 m² | 113 m² | +27 m² +31% | 2022 |
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| 23, Colesburg Road484 m away | 81 m² | 108 m² | +27 m² +33% | 2020 |
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| 6, Upper Elmers End Road539 m away | 85 m² | 112 m² | +27 m² +32% | 2020 |
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| 105, Avenue Road778 m away | 71 m² | 98 m² | +27 m² +38% | 2020 |
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| 87, Clock House Road372 m away | 124 m² | 151 m² | +27 m² +22% | 2019 |
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| 76, Ravenscroft Road896 m away | 114 m² | 141 m² | +27 m² +24% | 2017 |
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| 94, Ravenscroft Road896 m away | 113 m² | 140 m² | +27 m² +24% | 2017 |
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| 49, Birchwood Avenue759 m away | 83 m² | 109 m² | +26 m² +31% | 2026 |
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| 17, Shaftesbury Road920 m away | 95 m² | 121 m² | +26 m² +27% | 2026 |
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| 18, Acacia Road503 m away | 61 m² | 87 m² | +26 m² +43% | 2023 |
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| 166, Birkbeck Road770 m away | 87 m² | 113 m² | +26 m² +30% | 2020 |
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| 14, Derrick Road623 m away | 80 m² | 106 m² | +26 m² +33% | 2015 |
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| 81, Glanfield Road931 m away | 69 m² | 95 m² | +26 m² +38% | 2014 |
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| 1, Colesburg Road484 m away | 98 m² | 123 m² | +25 m² +26% | 2026 |
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| 193, Birkbeck Road747 m away | 94 m² | 119 m² | +25 m² +27% | 2026 |
|---|
| 14, Villiers Road519 m away | 73 m² | 98 m² | +25 m² +34% | 2024 |
|---|
| 41, Whitmore Road816 m away | 138 m² | 163 m² | +25 m² +18% | 2024 |
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| 4, Hampden Road343 m away | 131 m² | 156 m² | +25 m² +19% | 2023 |
|---|
| 124, Blandford Road615 m away | 74 m² | 99 m² | +25 m² +34% | 2020 |
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| 39, Durban Road642 m away | 89 m² | 114 m² | +25 m² +28% | 2019 |
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| 29, Chesham Road937 m away | 55 m² | 80 m² | +25 m² +45% | 2019 |
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| 76, Mackenzie Road715 m away | 86 m² | 110 m² | +24 m² +28% | 2025 |
|---|
| 59, Cromwell Road251 m away | 82 m² | 106 m² | +24 m² +29% | 2023 |
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| Flat 4, 180, Birkbeck Road770 m away | 49 m² | 73 m² | +24 m² +49% | 2022 |
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| 30, Birkbeck Road849 m away | 89 m² | 113 m² | +24 m² +27% | 2022 |
|---|
| 15, Wimborne Way354 m away | 54 m² | 78 m² | +24 m² +44% | 2019 |
|---|
| 19, Chaffinch Road868 m away | 93 m² | 117 m² | +24 m² +26% | 2018 |
|---|
| 18, Piquet Road941 m away | 106 m² | 130 m² | +24 m² +23% | 2018 |
|---|
| 19, Shaftesbury Road920 m away | 117 m² | 140 m² | +23 m² +20% | 2023 |
|---|
| 12, Villiers Road519 m away | 74 m² | 97 m² | +23 m² +31% | 2022 |
|---|
| 71, Durban Road642 m away | 109 m² | 132 m² | +23 m² +21% | 2022 |
|---|
| 76, Birkbeck Road793 m away | 92 m² | 115 m² | +23 m² +25% | 2022 |
|---|
| 27, Ash Grove987 m away | 101 m² | 124 m² | +23 m² +23% | 2022 |
|---|
| 68, Village Way953 m away | 134 m² | 157 m² | +23 m² +17% | 2020 |
|---|
| 3, Beck Way933 m away | 73 m² | 95 m² | +22 m² +30% | 2026 |
|---|
| 199, Croydon Road413 m away | 144 m² | 166 m² | +22 m² +15% | 2025 |
|---|
| 25, Broomfield Road503 m away | 98 m² | 120 m² | +22 m² +22% | 2025 |
|---|
| Flat 3, 13, Beckenham Road963 m away | 97 m² | 119 m² | +22 m² +23% | 2024 |
|---|
| 4, Mackenzie Road787 m away | 103 m² | 125 m² | +22 m² +21% | 2023 |
|---|
| 20a, Ash Grove987 m away | 48 m² | 70 m² | +22 m² +46% | 2023 |
|---|
| 20, Kimberley Road508 m away | 64 m² | 86 m² | +22 m² +34% | 2021 |
|---|
| 30, Blandford Avenue619 m away | 74 m² | 96 m² | +22 m² +30% | 2021 |
|---|
| 46, Belmont Road601 m away | 84 m² | 106 m² | +22 m² +26% | 2018 |
|---|
| 20, Forster Road134 m away | 126 m² | 148 m² | +22 m² +17% | 2015 |
|---|
| 24, Wimborne Way354 m away | 71 m² | 93 m² | +22 m² +31% | 2013 |
|---|
| 37, Beck Way933 m away | 98 m² | 119 m² | +21 m² +21% | 2025 |
|---|
| 7a, Kendall Road468 m away | 57 m² | 78 m² | +21 m² +37% | 2024 |
|---|
| 34, Villiers Road519 m away | 87 m² | 108 m² | +21 m² +24% | 2024 |
|---|
| 152, Ravenscroft Road855 m away | 66 m² | 87 m² | +21 m² +32% | 2022 |
|---|
| 25, Seward Road454 m away | 96 m² | 117 m² | +21 m² +22% | 2021 |
|---|
| 26, Felmingham Road973 m away | 75 m² | 96 m² | +21 m² +28% | 2021 |
|---|
| 45b, Royston Road950 m away | 67 m² | 88 m² | +21 m² +31% | 2020 |
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| 133, Elmers End Road851 m away | 81 m² | 102 m² | +21 m² +26% | 2019 |
|---|
| Flat 7, Woodbury Court, 199, Mackenzie Road675 m away | 31 m² | 52 m² | +21 m² +68% | 2018 |
|---|
| 30, Piquet Road941 m away | 83 m² | 104 m² | +21 m² +25% | 2018 |
|---|
| 177, Beckenham Road775 m away | 29 m² | 50 m² | +21 m² +72% | 2017 |
|---|
| 29, Eden Road519 m away | 69 m² | 90 m² | +21 m² +30% | 2014 |
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