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 4RG
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 Lane0 m away | 89 m² | 220 m² | +131 m² +147% | 2023 |
| 27, Clock House Road867 m away | 64 m² | 152 m² | +88 m² +138% | 2024 |
| 41, Elmers End Road554 m away | 116 m² | 201 m² | +85 m² +73% | 2025 |
| 194, Beckenham Road946 m away | 337 m² | 418 m² | +81 m² +24% | 2017 |
| 45, Cromwell Road652 m away | 135 m² | 213 m² | +78 m² +58% | 2023 |
| 33, Sheringham Road587 m away | 82 m² | 160 m² | +78 m² +95% | 2019 |
| 57, Hampden Avenue873 m away | 98 m² | 170 m² | +72 m² +73% | 2025 |
| 191, Ravenscroft Road529 m away | 63 m² | 135 m² | +72 m² +114% | 2021 |
| 98, Avenue Road582 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.
| 72 m² |
| 143 m² |
| +71 m² +99% |
| 2025 |
| 45, St James'S Avenue598 m away | 110 m² | 179 m² | +69 m² +63% | 2017 |
|---|
| 26, Ravenscroft Road799 m away | 89 m² | 157 m² | +68 m² +76% | 2025 |
|---|
| 115, Croydon Road871 m away | 261 m² | 329 m² | +68 m² +26% | 2017 |
|---|
| 19, Chesham Crescent717 m away | 105 m² | 172 m² | +67 m² +64% | 2014 |
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| 15, Warwick Road733 m away | 114 m² | 179 m² | +65 m² +57% | 2021 |
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| 80, Ravenscroft Road799 m away | 102 m² | 164 m² | +62 m² +61% | 2020 |
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| 50, Birkbeck Road814 m away | 106 m² | 166 m² | +60 m² +57% | 2025 |
|---|
| 152, Blandford Road585 m away | 83 m² | 143 m² | +60 m² +72% | 2021 |
|---|
| 35, Hampden Road775 m away | 73 m² | 133 m² | +60 m² +82% | 2018 |
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| 295, Beckenham Road919 m away | 125 m² | 185 m² | +60 m² +48% | 2016 |
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| 58, Forster Road496 m away | 115 m² | 174 m² | +59 m² +51% | 2023 |
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| 5a, Villiers Road414 m away | 92 m² | 151 m² | +59 m² +64% | 2019 |
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| 22, Shrewsbury Road797 m away | 98 m² | 155 m² | +57 m² +58% | 2025 |
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| 171, Harrington Road973 m away | 47 m² | 103 m² | +56 m² +119% | 2023 |
|---|
| 62, Forster Road496 m away | 111 m² | 165 m² | +54 m² +49% | 2025 |
|---|
| 6, Kenilworth Road966 m away | 104 m² | 158 m² | +54 m² +52% | 2020 |
|---|
| 81, Mackenzie Road605 m away | 60 m² | 113 m² | +53 m² +88% | 2022 |
|---|
| 204, Clock House Road442 m away | 84 m² | 134 m² | +50 m² +60% | 2026 |
|---|
| 35, Forster Road607 m away | 101 m² | 151 m² | +50 m² +50% | 2025 |
|---|
| 53, St James'S Avenue598 m away | 108 m² | 158 m² | +50 m² +46% | 2022 |
|---|
| 100, Forster Road496 m away | 98 m² | 147 m² | +49 m² +50% | 2016 |
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| 106, Mackenzie Road644 m away | 76 m² | 125 m² | +49 m² +64% | 2016 |
|---|
| 167, Ravenscroft Road529 m away | 97 m² | 145 m² | +48 m² +49% | 2026 |
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| 5, Kenilworth Road966 m away | 98 m² | 146 m² | +48 m² +49% | 2022 |
|---|
| 34, Pelham Road452 m away | 104 m² | 152 m² | +48 m² +46% | 2021 |
|---|
| 13, Eden Park Avenue880 m away | 86 m² | 134 m² | +48 m² +56% | 2020 |
|---|
| 17, Villiers Road414 m away | 101 m² | 148 m² | +47 m² +47% | 2024 |
|---|
| 217, Clock House Road405 m away | 82 m² | 129 m² | +47 m² +57% | 2022 |
|---|
| 34, Hampden Road737 m away | 94 m² | 141 m² | +47 m² +50% | 2021 |
|---|
| 62, Tremaine Road806 m away | 138 m² | 185 m² | +47 m² +34% | 2019 |
|---|
| 31, Cromwell Road652 m away | 120 m² | 167 m² | +47 m² +39% | 2016 |
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| 91, Blandford Road581 m away | 72 m² | 118 m² | +46 m² +64% | 2026 |
|---|
| 145a, Croydon Road805 m away | 35 m² | 81 m² | +46 m² +131% | 2024 |
|---|
| 311, Blandford Road219 m away | 86 m² | 131 m² | +45 m² +52% | 2022 |
|---|
| 386, Blandford Road251 m away | 71 m² | 116 m² | +45 m² +63% | 2022 |
|---|
| 29, Chartham Road950 m away | 75 m² | 120 m² | +45 m² +60% | 2021 |
|---|
| 29, Wheathill Road954 m away | 152 m² | 197 m² | +45 m² +30% | 2016 |
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| 5, Dorset Road176 m away | 104 m² | 148 m² | +44 m² +42% | 2022 |
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| 32, Hampden Road737 m away | 95 m² | 139 m² | +44 m² +46% | 2022 |
|---|
| 250, Blandford Road437 m away | 66 m² | 109 m² | +43 m² +65% | 2025 |
|---|
| 13, Gwydor Road358 m away | 114 m² | 157 m² | +43 m² +38% | 2023 |
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| 29, Ash Grove586 m away | 85 m² | 128 m² | +43 m² +51% | 2022 |
|---|
| 16, Waverley Road925 m away | 77 m² | 120 m² | +43 m² +56% | 2017 |
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| 155, Churchfields Road455 m away | 84 m² | 126 m² | +42 m² +50% | 2023 |
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| 90, Belmont Road917 m away | 74 m² | 116 m² | +42 m² +57% | 2023 |
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| 116, Mackenzie Road478 m away | 104 m² | 146 m² | +42 m² +40% | 2022 |
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| 33, Kenilworth Road966 m away | 91 m² | 133 m² | +42 m² +46% | 2020 |
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| 65, Kendall Road686 m away | 82 m² | 123 m² | +41 m² +50% | 2026 |
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| 235, Birkbeck Road395 m away | 64 m² | 105 m² | +41 m² +64% | 2025 |
|---|
| 48, Chesham Road652 m away | 121 m² | 162 m² | +41 m² +34% | 2025 |
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| 45, Hambrook Road960 m away | 76 m² | 117 m² | +41 m² +54% | 2025 |
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| 61, Forster Road533 m away | 86 m² | 127 m² | +41 m² +48% | 2024 |
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| 12, Cromwell Road843 m away | 99 m² | 140 m² | +41 m² +41% | 2024 |
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| 30, Felmingham Road506 m away | 72 m² | 113 m² | +41 m² +57% | 2023 |
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| 65, Goddard Road919 m away | 82 m² | 123 m² | +41 m² +50% | 2023 |
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| 3, Warwick Road733 m away | 101 m² | 142 m² | +41 m² +41% | 2022 |
|---|
| 42, Clock House Road906 m away | 139 m² | 180 m² | +41 m² +29% | 2020 |
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| 7, Forster Road607 m away | 121 m² | 161 m² | +40 m² +33% | 2026 |
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| 36, Pelham Road452 m away | 108 m² | 148 m² | +40 m² +37% | 2025 |
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| 182, Harrington Road841 m away | 76 m² | 116 m² | +40 m² +53% | 2025 |
|---|
| 27, Brooklyn Road971 m away | 76 m² | 116 m² | +40 m² +53% | 2024 |
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| 25, Clement Road312 m away | 82 m² | 122 m² | +40 m² +49% | 2023 |
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| 53, Stembridge Road833 m away | 106 m² | 146 m² | +40 m² +38% | 2020 |
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| 84, Clock House Road696 m away | 123 m² | 162 m² | +39 m² +32% | 2026 |
|---|
| 30, Colesburg Road935 m away | 86 m² | 125 m² | +39 m² +45% | 2026 |
|---|
| 85, Ravenscroft Road790 m away | 91 m² | 130 m² | +39 m² +43% | 2024 |
|---|
| 285, Beckenham Road919 m away | 59 m² | 97 m² | +38 m² +64% | 2026 |
|---|
| 134, Blandford Road585 m away | 110 m² | 148 m² | +38 m² +35% | 2023 |
|---|
| 130, Mackenzie Road478 m away | 95 m² | 132 m² | +37 m² +39% | 2026 |
|---|
| 301, Clock House Road529 m away | 67 m² | 104 m² | +37 m² +55% | 2026 |
|---|
| 174, Beckenham Road946 m away | 178 m² | 215 m² | +37 m² +21% | 2026 |
|---|
| 2, Kendall Road676 m away | 125 m² | 162 m² | +37 m² +30% | 2024 |
|---|
| 37, Kenilworth Road966 m away | 85 m² | 122 m² | +37 m² +44% | 2022 |
|---|
| 135, Harrington Road973 m away | 53 m² | 89 m² | +36 m² +68% | 2025 |
|---|
| 76, Blandford Road776 m away | 86 m² | 122 m² | +36 m² +42% | 2021 |
|---|
| 6, Wimborne Way546 m away | 88 m² | 124 m² | +36 m² +41% | 2019 |
|---|
| 49, Hampden Road775 m away | 93 m² | 129 m² | +36 m² +39% | 2019 |
|---|
| 1, Birkbeck Road802 m away | 45 m² | 81 m² | +36 m² +80% | 2018 |
|---|
| 50, Allen Road281 m away | 90 m² | 125 m² | +35 m² +39% | 2025 |
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| 52, Broomfield Road921 m away | 99 m² | 134 m² | +35 m² +35% | 2025 |
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| 129, Croydon Road871 m away | 227 m² | 262 m² | +35 m² +15% | 2024 |
|---|
| 120, Elmers End Road450 m away | 106 m² | 141 m² | +35 m² +33% | 2022 |
|---|
| 73, Ravenscroft Road790 m away | 101 m² | 136 m² | +35 m² +35% | 2022 |
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| 2, Wimborne Way546 m away | 91 m² | 126 m² | +35 m² +38% | 2017 |
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| 7, Blandford Avenue712 m away | 84 m² | 119 m² | +35 m² +42% | 2017 |
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| 28, Colesburg Road935 m away | 91 m² | 126 m² | +35 m² +38% | 2017 |
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| 277, Beckenham Road919 m away | 103 m² | 138 m² | +35 m² +34% | 2014 |
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| 16, Elmers End Road732 m away | 124 m² | 158 m² | +34 m² +27% | 2026 |
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| 132, Birkbeck Road489 m away | 117 m² | 151 m² | +34 m² +29% | 2024 |
|---|
| 21, Warwick Road733 m away | 107 m² | 141 m² | +34 m² +32% | 2023 |
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| 18, Hampden Avenue821 m away | 100 m² | 134 m² | +34 m² +34% | 2020 |
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| 55, Brooklyn Road854 m away | 90 m² | 124 m² | +34 m² +38% | 2020 |
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| 172, Birkbeck Road489 m away | 84 m² | 118 m² | +34 m² +40% | 2019 |
|---|
| 119, Mackenzie Road461 m away | 110 m² | 144 m² | +34 m² +31% | 2018 |
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| 13, Stodart Road994 m away | 131 m² | 165 m² | +34 m² +26% | 2017 |
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| 3, Acacia Road962 m away | 67 m² | 100 m² | +33 m² +49% | 2024 |
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| 116, Blandford Road585 m away | 85 m² | 118 m² | +33 m² +39% | 2023 |
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| 7, Raymond Road849 m away | 104 m² | 137 m² | +33 m² +32% | 2017 |
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| 143, Harrington Road973 m away | 79 m² | 112 m² | +33 m² +42% | 2017 |
|---|
| 38, Birkbeck Road814 m away | 99 m² | 131 m² | +32 m² +32% | 2026 |
|---|
| 41, Waverley Road931 m away | 77 m² | 109 m² | +32 m² +42% | 2026 |
|---|
| 28, Bourdon Road662 m away | 99 m² | 131 m² | +32 m² +32% | 2024 |
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| 29, Pelham Road440 m away | 102 m² | 134 m² | +32 m² +31% | 2022 |
|---|
| 28, Oak Grove Road745 m away | 80 m² | 112 m² | +32 m² +40% | 2021 |
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| 186, Clock House Road475 m away | 84 m² | 116 m² | +32 m² +38% | 2019 |
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| 5, Piquet Road456 m away | 118 m² | 150 m² | +32 m² +27% | 2018 |
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| 16, Blandford Road776 m away | 95 m² | 127 m² | +32 m² +34% | 2015 |
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| 30, Stembridge Road847 m away | 85 m² | 117 m² | +32 m² +38% | 2013 |
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| 275, Clock House Road529 m away | 84 m² | 115 m² | +31 m² +37% | 2020 |
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| 51, Chartham Road950 m away | 74 m² | 105 m² | +31 m² +42% | 2020 |
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| 72a, Samos Road685 m away | 79 m² | 110 m² | +31 m² +39% | 2019 |
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| Flat 7, Clock House Court, Clock House Road967 m away | 39 m² | 70 m² | +31 m² +79% | 2019 |
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| 40, Stodart Road994 m away | 103 m² | 134 m² | +31 m² +30% | 2019 |
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| 20, Warwick Road701 m away | 112 m² | 143 m² | +31 m² +28% | 2014 |
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| 22, Hampden Avenue821 m away | 103 m² | 133 m² | +30 m² +29% | 2026 |
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| 46, Blandford Road776 m away | 98 m² | 128 m² | +30 m² +31% | 2025 |
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| 94, Forster Road496 m away | 133 m² | 163 m² | +30 m² +23% | 2024 |
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| 41, Arrol Road173 m away | 75 m² | 105 m² | +30 m² +40% | 2022 |
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| 150, Beckenham Road946 m away | 178 m² | 207 m² | +29 m² +16% | 2021 |
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| 170, Birkbeck Road489 m away | 86 m² | 115 m² | +29 m² +34% | 2020 |
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| 49, Clevedon Road937 m away | 107 m² | 136 m² | +29 m² +27% | 2018 |
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| 50, Stembridge Road847 m away | 79 m² | 107 m² | +28 m² +35% | 2026 |
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| 54, Goddard Road954 m away | 87 m² | 115 m² | +28 m² +32% | 2025 |
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| 109, Elmers End Road407 m away | 51 m² | 79 m² | +28 m² +55% | 2023 |
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| 265a, Beckenham Road919 m away | 74 m² | 102 m² | +28 m² +38% | 2021 |
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| 27, Hampden Road775 m away | 93 m² | 121 m² | +28 m² +30% | 2019 |
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| 123, Ravenscroft Road529 m away | 85 m² | 112 m² | +27 m² +32% | 2026 |
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| 4a, Tremaine Road806 m away | 53 m² | 80 m² | +27 m² +51% | 2023 |
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| 26, Churchfields Road834 m away | 86 m² | 113 m² | +27 m² +31% | 2022 |
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| 105, Avenue Road619 m away | 71 m² | 98 m² | +27 m² +38% | 2020 |
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| 6, Upper Elmers End Road795 m away | 85 m² | 112 m² | +27 m² +32% | 2020 |
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| 23, Colesburg Road935 m away | 81 m² | 108 m² | +27 m² +33% | 2020 |
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| 87, Clock House Road678 m away | 124 m² | 151 m² | +27 m² +22% | 2019 |
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| 76, Ravenscroft Road799 m away | 114 m² | 141 m² | +27 m² +24% | 2017 |
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| 94, Ravenscroft Road799 m away | 113 m² | 140 m² | +27 m² +24% | 2017 |
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| 18, Acacia Road962 m away | 61 m² | 87 m² | +26 m² +43% | 2023 |
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| 166, Birkbeck Road489 m away | 87 m² | 113 m² | +26 m² +30% | 2020 |
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| 24, Chartham Road971 m away | 128 m² | 154 m² | +26 m² +20% | 2009 |
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| 193, Birkbeck Road434 m away | 94 m² | 119 m² | +25 m² +27% | 2026 |
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| 1, Colesburg Road935 m away | 98 m² | 123 m² | +25 m² +26% | 2026 |
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| 31, Chartham Road950 m away | 90 m² | 115 m² | +25 m² +28% | 2026 |
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| 14, Villiers Road414 m away | 73 m² | 98 m² | +25 m² +34% | 2024 |
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| 4, Hampden Road737 m away | 131 m² | 156 m² | +25 m² +19% | 2023 |
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| 124, Blandford Road585 m away | 74 m² | 99 m² | +25 m² +34% | 2020 |
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| 29, Chesham Road652 m away | 55 m² | 80 m² | +25 m² +45% | 2019 |
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| 76, Mackenzie Road644 m away | 86 m² | 110 m² | +24 m² +28% | 2025 |
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| 40, Kenilworth Road966 m away | 126 m² | 150 m² | +24 m² +19% | 2024 |
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| 59, Cromwell Road652 m away | 82 m² | 106 m² | +24 m² +29% | 2023 |
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| Flat 4, 180, Birkbeck Road489 m away | 49 m² | 73 m² | +24 m² +49% | 2022 |
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| 30, Birkbeck Road814 m away | 89 m² | 113 m² | +24 m² +27% | 2022 |
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| 114, Marlow Road733 m away | 99 m² | 123 m² | +24 m² +24% | 2020 |
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| 15, Wimborne Way546 m away | 54 m² | 78 m² | +24 m² +44% | 2019 |
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| 18, Piquet Road478 m away | 106 m² | 130 m² | +24 m² +23% | 2018 |
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| 12, Villiers Road414 m away | 74 m² | 97 m² | +23 m² +31% | 2022 |
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| 27, Ash Grove586 m away | 101 m² | 124 m² | +23 m² +23% | 2022 |
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| 76, Birkbeck Road686 m away | 92 m² | 115 m² | +23 m² +25% | 2022 |
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| 199, Croydon Road862 m away | 144 m² | 166 m² | +22 m² +15% | 2025 |
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| 25, Broomfield Road961 m away | 98 m² | 120 m² | +22 m² +22% | 2025 |
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| 20a, Ash Grove586 m away | 48 m² | 70 m² | +22 m² +46% | 2023 |
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| 4, Mackenzie Road795 m away | 103 m² | 125 m² | +22 m² +21% | 2023 |
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| 20, Kimberley Road481 m away | 64 m² | 86 m² | +22 m² +34% | 2021 |
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| 35, Sheringham Road587 m away | 83 m² | 105 m² | +22 m² +27% | 2021 |
|---|
| 30, Blandford Avenue712 m away | 74 m² | 96 m² | +22 m² +30% | 2021 |
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| 20, Forster Road582 m away | 126 m² | 148 m² | +22 m² +17% | 2015 |
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| 24, Wimborne Way546 m away | 71 m² | 93 m² | +22 m² +31% | 2013 |
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| Flat 15, Penceat Court, 17, Bourdon Road634 m away | 29 m² | 51 m² | +22 m² +76% | 2013 |
|---|
| 34, Villiers Road414 m away | 87 m² | 108 m² | +21 m² +24% | 2024 |
|---|
| 7a, Kendall Road686 m away | 57 m² | 78 m² | +21 m² +37% | 2024 |
|---|
| 152, Ravenscroft Road561 m away | 66 m² | 87 m² | +21 m² +32% | 2022 |
|---|
| 25, Seward Road410 m away | 96 m² | 117 m² | +21 m² +22% | 2021 |
|---|
| 26, Felmingham Road506 m away | 75 m² | 96 m² | +21 m² +28% | 2021 |
|---|
| 45b, Royston Road825 m away | 67 m² | 88 m² | +21 m² +31% | 2020 |
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| 133, Elmers End Road407 m away | 81 m² | 102 m² | +21 m² +26% | 2019 |
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| Flat 7, Woodbury Court, 199, Mackenzie Road349 m away | 31 m² | 52 m² | +21 m² +68% | 2018 |
|---|
| 30, Piquet Road478 m away | 83 m² | 104 m² | +21 m² +25% | 2018 |
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| 177, Beckenham Road988 m away | 29 m² | 50 m² | +21 m² +72% | 2017 |
|---|
| 29, Eden Road731 m away | 69 m² | 90 m² | +21 m² +30% | 2014 |
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| Flat 49, Deverill Court, Avenue Road843 m away | 59 m² | 79 m² | +20 m² +34% | 2026 |
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| 7, Balgowan Road876 m away | 130 m² | 150 m² | +20 m² +15% | 2024 |
|---|
| 243, Ravenscroft Road478 m away | 63 m² | 83 m² | +20 m² +32% | 2022 |
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| 100, Blandford Road585 m away | 84 m² | 104 m² | +20 m² +24% | 2022 |
|---|
| 19, Goddard Road728 m away | 83 m² | 103 m² | +20 m² +24% | 2021 |
|---|
| 220b, Birkbeck Road432 m away | 21 m² | 41 m² | +20 m² +95% | 2020 |
|---|
| 79, Beck Lane0 m away | 92 m² | 112 m² | +20 m² +22% | 2019 |
|---|
| 172, Clock House Road475 m away | 78 m² | 98 m² | +20 m² +26% | 2017 |
|---|
| 4, Sultan Street565 m away | 80 m² | 100 m² | +20 m² +25% | 2014 |
|---|
| 256, Clock House Road582 m away | 113 m² | 133 m² | +20 m² +18% | 2014 |
|---|
| 102a, Croydon Road908 m away | 76 m² | 96 m² | +20 m² +26% | 2014 |
|---|
| 175, Clock House Road457 m away | 86 m² | 105 m² | +19 m² +22% | 2026 |
|---|
| 147, Ravenscroft Road529 m away | 83 m² | 102 m² | +19 m² +23% | 2025 |
|---|
| 249, Beckenham Road888 m away | 18 m² | 37 m² | +19 m² +106% | 2025 |
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