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 1LZ
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 |
|---|---|---|---|---|
| 18, Reddons Road0 m away | 246 m² | 387 m² | +141 m² +57% | 2012 |
| 130, Maple Road823 m away | 100 m² | 210 m² | +110 m² +110% | 2014 |
| 58, Woodbastwick Road820 m away | 130 m² | 226 m² | +96 m² +74% | 2021 |
| 37, Kings Hall Road159 m away | 187 m² | 280 m² | +93 m² +50% | 2021 |
| 67, Kings Hall Road321 m away | 124 m² | 215 m² | +91 m² +73% | 2020 |
| 27, Clock House Road868 m away | 64 m² | 152 m² | +88 m² +138% | 2024 |
| 40, Park Road973 m away | 154 m² | 240 m² | +86 m² +56% | 2022 |
| 136, Lennard Road286 m away | 139 m² | 220 m² | +81 m² +58% | 2026 |
| Stanbrook, Hayne Road881 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.
| 90 m² |
| 171 m² |
| +81 m² +90% |
| 2019 |
| 194, Beckenham Road505 m away | 337 m² | 418 m² | +81 m² +24% | 2017 |
|---|
| 8, Lawn Road765 m away | 166 m² | 244 m² | +78 m² +47% | 2024 |
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| 10, Alexandra Road709 m away | 129 m² | 200 m² | +71 m² +55% | 2025 |
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| 98, Avenue Road912 m away | 72 m² | 143 m² | +71 m² +99% | 2025 |
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| 26, Ravenscroft Road685 m away | 89 m² | 157 m² | +68 m² +76% | 2025 |
|---|
| 87, Copers Cope Road693 m away | 278 m² | 346 m² | +68 m² +24% | 2021 |
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| 45, Kingsdale Road468 m away | 64 m² | 128 m² | +64 m² +100% | 2020 |
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| 48, Barnmead Road399 m away | 117 m² | 179 m² | +62 m² +53% | 2020 |
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| 80, Ravenscroft Road685 m away | 102 m² | 164 m² | +62 m² +61% | 2020 |
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| Redroofs, Lawn Road765 m away | 124 m² | 185 m² | +61 m² +49% | 2022 |
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| 50, Birkbeck Road640 m away | 106 m² | 166 m² | +60 m² +57% | 2025 |
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| 56, Woodbastwick Road820 m away | 134 m² | 194 m² | +60 m² +45% | 2022 |
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| 152, Blandford Road868 m away | 83 m² | 143 m² | +60 m² +72% | 2021 |
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| 295, Beckenham Road537 m away | 125 m² | 185 m² | +60 m² +48% | 2016 |
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| 8, Alexandra Road709 m away | 137 m² | 195 m² | +58 m² +42% | 2020 |
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| 263, Kent House Road160 m away | 131 m² | 187 m² | +56 m² +43% | 2024 |
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| 6, Imperial Court, 2, Blakeney Road954 m away | 86 m² | 142 m² | +56 m² +65% | 2020 |
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| 90, Lennard Road445 m away | 204 m² | 260 m² | +56 m² +27% | 2018 |
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| 214, Kent House Road220 m away | 120 m² | 175 m² | +55 m² +46% | 2026 |
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| 6, Kenilworth Road659 m away | 104 m² | 158 m² | +54 m² +52% | 2020 |
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| 7, Alexandra Road709 m away | 135 m² | 189 m² | +54 m² +40% | 2018 |
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| 81, Mackenzie Road846 m away | 60 m² | 113 m² | +53 m² +88% | 2022 |
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| 260, Kent House Road220 m away | 113 m² | 166 m² | +53 m² +47% | 2016 |
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| 43, Chaffinch Road621 m away | 87 m² | 139 m² | +52 m² +60% | 2025 |
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| 27, Phoenix Road931 m away | 126 m² | 178 m² | +52 m² +41% | 2024 |
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| 194, Venner Road975 m away | 127 m² | 179 m² | +52 m² +41% | 2024 |
|---|
| 43, Reddons Road62 m away | 181 m² | 233 m² | +52 m² +29% | 2021 |
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| 11, Cator Road761 m away | 265 m² | 317 m² | +52 m² +20% | 2016 |
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| 5, Southey Street637 m away | 94 m² | 144 m² | +50 m² +53% | 2025 |
|---|
| 102, Kent House Road807 m away | 132 m² | 182 m² | +50 m² +38% | 2016 |
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| 86, Barnmead Road365 m away | 97 m² | 146 m² | +49 m² +51% | 2022 |
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| 106, Mackenzie Road809 m away | 76 m² | 125 m² | +49 m² +64% | 2016 |
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| 140, Kent House Road544 m away | 139 m² | 187 m² | +48 m² +35% | 2023 |
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| 87, Chaffinch Road621 m away | 91 m² | 139 m² | +48 m² +53% | 2022 |
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| 5, Kenilworth Road659 m away | 98 m² | 146 m² | +48 m² +49% | 2022 |
|---|
| 15, Whateley Road341 m away | 85 m² | 132 m² | +47 m² +55% | 2021 |
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| 131, Parish Lane471 m away | 75 m² | 122 m² | +47 m² +63% | 2017 |
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| 91, Blandford Road877 m away | 72 m² | 118 m² | +46 m² +64% | 2026 |
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| 76, Kings Hall Road308 m away | 203 m² | 248 m² | +45 m² +22% | 2026 |
|---|
| 87, Kent House Lane937 m away | 78 m² | 122 m² | +44 m² +56% | 2021 |
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| 39, Queen Adelaide Road755 m away | 31 m² | 74 m² | +43 m² +139% | 2010 |
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| 4, Studland Road978 m away | 139 m² | 181 m² | +42 m² +30% | 2025 |
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| 33, Kenilworth Road659 m away | 91 m² | 133 m² | +42 m² +46% | 2020 |
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| 18, Green Lane488 m away | 49 m² | 91 m² | +42 m² +86% | 2016 |
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| 65, Kendall Road935 m away | 82 m² | 123 m² | +41 m² +50% | 2026 |
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| 42, Clock House Road868 m away | 139 m² | 180 m² | +41 m² +29% | 2020 |
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| 11, Lennard Road706 m away | 72 m² | 113 m² | +41 m² +57% | 2014 |
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| 3, Phoenix Road931 m away | 141 m² | 181 m² | +40 m² +28% | 2025 |
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| 1, Lennard Road776 m away | 94 m² | 134 m² | +40 m² +43% | 2024 |
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| 1, Grangewood Lane717 m away | 121 m² | 161 m² | +40 m² +33% | 2014 |
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| 171, Kings Hall Road424 m away | 154 m² | 193 m² | +39 m² +25% | 2025 |
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| 85, Ravenscroft Road678 m away | 91 m² | 130 m² | +39 m² +43% | 2024 |
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| 26, Barnmead Road399 m away | 194 m² | 233 m² | +39 m² +20% | 2021 |
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| 34, Blakeney Road665 m away | 109 m² | 148 m² | +39 m² +36% | 2020 |
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| 89, Kent House Lane937 m away | 89 m² | 128 m² | +39 m² +44% | 2014 |
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| 285, Beckenham Road537 m away | 59 m² | 97 m² | +38 m² +64% | 2026 |
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| 26, Blakeney Road665 m away | 103 m² | 141 m² | +38 m² +37% | 2023 |
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| 134, Blandford Road868 m away | 110 m² | 148 m² | +38 m² +35% | 2023 |
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| Flat 1, Knewleave House, Copers Cope Road652 m away | 88 m² | 126 m² | +38 m² +43% | 2021 |
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| Flat 61, Queen Adelaide Court, Queen Adelaide Road768 m away | 36 m² | 74 m² | +38 m² +106% | 2020 |
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| 181, High Street551 m away | 32 m² | 70 m² | +38 m² +119% | 2019 |
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| 56a, Copers Cope Road864 m away | 132 m² | 170 m² | +38 m² +29% | 2018 |
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| 174, Beckenham Road505 m away | 178 m² | 215 m² | +37 m² +21% | 2026 |
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| 2, Kendall Road922 m away | 125 m² | 162 m² | +37 m² +30% | 2024 |
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| 88, Lennard Road445 m away | 204 m² | 241 m² | +37 m² +18% | 2023 |
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| 106, Kent House Road807 m away | 177 m² | 214 m² | +37 m² +21% | 2023 |
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| 37, Kenilworth Road659 m away | 85 m² | 122 m² | +37 m² +44% | 2022 |
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| 40, Barnmead Road399 m away | 164 m² | 200 m² | +36 m² +22% | 2023 |
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| 76, Blandford Road702 m away | 86 m² | 122 m² | +36 m² +42% | 2021 |
|---|
| 1, Birkbeck Road649 m away | 45 m² | 81 m² | +36 m² +80% | 2018 |
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| 9, Elvino Road937 m away | 100 m² | 136 m² | +36 m² +36% | 2012 |
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| 73, Ravenscroft Road678 m away | 101 m² | 136 m² | +35 m² +35% | 2022 |
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| 7, Blandford Avenue787 m away | 84 m² | 119 m² | +35 m² +42% | 2017 |
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| 277, Beckenham Road537 m away | 103 m² | 138 m² | +35 m² +34% | 2014 |
|---|
| 55, Wordsworth Road577 m away | 89 m² | 123 m² | +34 m² +38% | 2021 |
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| Flat 8, Glenavon Lodge, 46, Park Road973 m away | 44 m² | 78 m² | +34 m² +77% | 2021 |
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| 27, Montrave Road935 m away | 135 m² | 168 m² | +33 m² +24% | 2024 |
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| 116, Blandford Road868 m away | 85 m² | 118 m² | +33 m² +39% | 2023 |
|---|
| 19, Eastwell Close215 m away | 90 m² | 123 m² | +33 m² +37% | 2021 |
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| 186, Maple Road772 m away | 53 m² | 86 m² | +33 m² +62% | 2020 |
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| 5, Beckett Walk430 m away | 47 m² | 80 m² | +33 m² +70% | 2013 |
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| 38, Birkbeck Road640 m away | 99 m² | 131 m² | +32 m² +32% | 2026 |
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| 63, Chaffinch Road621 m away | 90 m² | 122 m² | +32 m² +36% | 2025 |
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| 130, Lennard Road286 m away | 68 m² | 100 m² | +32 m² +47% | 2022 |
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| 16, Blandford Road702 m away | 95 m² | 127 m² | +32 m² +34% | 2015 |
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| 62, Barnmead Road399 m away | 120 m² | 151 m² | +31 m² +26% | 2026 |
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| 31, Torr Road408 m away | 86 m² | 117 m² | +31 m² +36% | 2023 |
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| 50a, Croydon Road852 m away | 69 m² | 100 m² | +31 m² +45% | 2021 |
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| Flat 7, Clock House Court, Clock House Road814 m away | 39 m² | 70 m² | +31 m² +79% | 2019 |
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| Flat 4, 47, Newlands Park963 m away | 32 m² | 63 m² | +31 m² +97% | 2016 |
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| 30, Parish Lane719 m away | 42 m² | 73 m² | +31 m² +74% | 2010 |
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| 46, Blandford Road702 m away | 98 m² | 128 m² | +30 m² +31% | 2025 |
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| 2, Lennard Terrace796 m away | 99 m² | 129 m² | +30 m² +30% | 2020 |
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| 5, Elvino Road937 m away | 105 m² | 135 m² | +30 m² +29% | 2020 |
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| 60, Rowden Road575 m away | 106 m² | 136 m² | +30 m² +28% | 2018 |
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| 15, Green Lane488 m away | 111 m² | 141 m² | +30 m² +27% | 2015 |
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| 13, Kings Hall Road159 m away | 168 m² | 197 m² | +29 m² +17% | 2024 |
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| 150, Beckenham Road505 m away | 178 m² | 207 m² | +29 m² +16% | 2021 |
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| 49, Clevedon Road627 m away | 107 m² | 136 m² | +29 m² +27% | 2018 |
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| 34, Century Way758 m away | 168 m² | 197 m² | +29 m² +17% | 2017 |
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| 265a, Beckenham Road537 m away | 74 m² | 102 m² | +28 m² +38% | 2021 |
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| 159b, Venner Road947 m away | 53 m² | 81 m² | +28 m² +53% | 2017 |
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| 28, Green Lane486 m away | 88 m² | 116 m² | +28 m² +32% | 2015 |
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| Flat 10, Queen Adelaide Court, Queen Adelaide Road711 m away | 45 m² | 72 m² | +27 m² +60% | 2025 |
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| 70, Wordsworth Road523 m away | 91 m² | 118 m² | +27 m² +30% | 2024 |
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| 36, Somerville Road317 m away | 95 m² | 122 m² | +27 m² +28% | 2022 |
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| 49b, Parish Lane696 m away | 41 m² | 68 m² | +27 m² +66% | 2022 |
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| 26, Churchfields Road697 m away | 86 m² | 113 m² | +27 m² +31% | 2022 |
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| 50, Barnmead Road399 m away | 150 m² | 177 m² | +27 m² +18% | 2021 |
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| 105, Avenue Road870 m away | 71 m² | 98 m² | +27 m² +38% | 2020 |
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| 2, Lathkill Court, Hayne Road882 m away | 43 m² | 70 m² | +27 m² +63% | 2019 |
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| 76, Ravenscroft Road685 m away | 114 m² | 141 m² | +27 m² +24% | 2017 |
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| 94, Ravenscroft Road685 m away | 113 m² | 140 m² | +27 m² +24% | 2017 |
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| 198b, Venner Road975 m away | 47 m² | 74 m² | +27 m² +57% | 2014 |
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| Flat 5, 101a, Parish Lane264 m away | 36 m² | 62 m² | +26 m² +72% | 2025 |
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| Flat 5, Parcell House, Newlands Park886 m away | 56 m² | 82 m² | +26 m² +46% | 2025 |
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| 34, Kings Hall Road211 m away | 114 m² | 140 m² | +26 m² +23% | 2023 |
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| 68, Lennard Road445 m away | 169 m² | 195 m² | +26 m² +15% | 2023 |
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| 23, Cottingham Road483 m away | 78 m² | 104 m² | +26 m² +33% | 2022 |
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| 11, Kent House Lane937 m away | 96 m² | 122 m² | +26 m² +27% | 2022 |
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| Flat 6, Strood House, Evelina Road734 m away | 19 m² | 45 m² | +26 m² +137% | 2020 |
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| 22, Green Lane488 m away | 42 m² | 67 m² | +25 m² +60% | 2020 |
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| Flat 2, Rye Lodge, 40, Copers Cope Road799 m away | 57 m² | 82 m² | +25 m² +44% | 2020 |
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| 124, Blandford Road868 m away | 74 m² | 99 m² | +25 m² +34% | 2020 |
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| 8, Green Lane488 m away | 83 m² | 108 m² | +25 m² +30% | 2009 |
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| 76, Mackenzie Road809 m away | 86 m² | 110 m² | +24 m² +28% | 2025 |
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| 40, Kenilworth Road659 m away | 126 m² | 150 m² | +24 m² +19% | 2024 |
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| 30, Birkbeck Road640 m away | 89 m² | 113 m² | +24 m² +27% | 2022 |
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| 81b, Copers Cope Road693 m away | 128 m² | 152 m² | +24 m² +19% | 2022 |
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| 27, Albert Road595 m away | 44 m² | 68 m² | +24 m² +55% | 2021 |
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| 19, Chaffinch Road607 m away | 93 m² | 117 m² | +24 m² +26% | 2018 |
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| Flat E, Mentmore Lodge, 65, Copers Cope Road693 m away | 70 m² | 94 m² | +24 m² +34% | 2014 |
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| 25, Whateley Road341 m away | 90 m² | 113 m² | +23 m² +26% | 2026 |
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| 152, Maple Road823 m away | 52 m² | 75 m² | +23 m² +44% | 2025 |
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| 76, Birkbeck Road783 m away | 92 m² | 115 m² | +23 m² +25% | 2022 |
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| 25, Tennyson Road380 m away | 89 m² | 112 m² | +23 m² +26% | 2021 |
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| 222, Venner Road975 m away | 118 m² | 141 m² | +23 m² +19% | 2021 |
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| 31, Kent House Lane937 m away | 77 m² | 100 m² | +23 m² +30% | 2020 |
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| Flat 4, 9, St Johns Road895 m away | 37 m² | 60 m² | +23 m² +62% | 2018 |
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| Flat 10, Golden Mews, 15, Howard Road910 m away | 71 m² | 94 m² | +23 m² +32% | 2018 |
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| 4, Mackenzie Road657 m away | 103 m² | 125 m² | +22 m² +21% | 2023 |
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| 30, Blandford Avenue787 m away | 74 m² | 96 m² | +22 m² +30% | 2021 |
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| 20, Kimberley Road980 m away | 64 m² | 86 m² | +22 m² +34% | 2021 |
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| 7a, Howard Road910 m away | 85 m² | 107 m² | +22 m² +26% | 2020 |
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| 112b, Lennard Road372 m away | 90 m² | 112 m² | +22 m² +24% | 2019 |
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| 14, Parkside Close872 m away | 60 m² | 81 m² | +21 m² +35% | 2025 |
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| 8, Queen Adelaide Road755 m away | 85 m² | 106 m² | +21 m² +25% | 2024 |
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| 7a, Kendall Road935 m away | 57 m² | 78 m² | +21 m² +37% | 2024 |
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| 35, Cottingham Road483 m away | 78 m² | 99 m² | +21 m² +27% | 2022 |
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| Flat 10, Wych End, 49, Copers Cope Road635 m away | 36 m² | 57 m² | +21 m² +58% | 2022 |
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| 13, Elvino Road937 m away | 100 m² | 121 m² | +21 m² +21% | 2022 |
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| 45b, Royston Road692 m away | 67 m² | 88 m² | +21 m² +31% | 2020 |
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| 198a, Venner Road975 m away | 66 m² | 87 m² | +21 m² +32% | 2020 |
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| 177, Beckenham Road680 m away | 29 m² | 50 m² | +21 m² +72% | 2017 |
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| Flat 6, Fircroft, 51, Copers Cope Road629 m away | 50 m² | 71 m² | +21 m² +42% | 2014 |
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| 8, Thayers Farm Road589 m away | 68 m² | 88 m² | +20 m² +29% | 2026 |
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| Flat 49, Deverill Court, Avenue Road893 m away | 59 m² | 79 m² | +20 m² +34% | 2026 |
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| 59, Edward Road537 m away | 65 m² | 85 m² | +20 m² +31% | 2025 |
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| 14, Green Lane488 m away | 118 m² | 138 m² | +20 m² +17% | 2022 |
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| 100, Blandford Road868 m away | 84 m² | 104 m² | +20 m² +24% | 2022 |
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| 85, Parish Lane232 m away | 90 m² | 110 m² | +20 m² +22% | 2019 |
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| 15, Blakeney Avenue811 m away | 119 m² | 139 m² | +20 m² +17% | 2019 |
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| 4, Sultan Street915 m away | 80 m² | 100 m² | +20 m² +25% | 2014 |
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| 50, Tennyson Road380 m away | 66 m² | 85 m² | +19 m² +29% | 2026 |
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| Flat 4, Rebecca Court, 9, Copers Cope Road957 m away | 57 m² | 76 m² | +19 m² +33% | 2026 |
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| 29, Tennyson Road380 m away | 92 m² | 111 m² | +19 m² +21% | 2025 |
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| 249, Beckenham Road566 m away | 18 m² | 37 m² | +19 m² +106% | 2025 |
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| 3, Newlands Park899 m away | 46 m² | 65 m² | +19 m² +41% | 2025 |
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| 18, Phoenix Road931 m away | 114 m² | 133 m² | +19 m² +17% | 2025 |
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| 7, Silverwood Close956 m away | 73 m² | 92 m² | +19 m² +26% | 2025 |
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| Flat 7, Archways, 4, Blakeney Road912 m away | 52 m² | 71 m² | +19 m² +37% | 2024 |
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| 2, Century Way758 m away | 126 m² | 145 m² | +19 m² +15% | 2023 |
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| Flat 11, Sandby Court, 8, Sheridan Way710 m away | 55 m² | 74 m² | +19 m² +35% | 2021 |
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| Flat 12, Sycamore House, 53a, Lennard Road569 m away | 40 m² | 59 m² | +19 m² +48% | 2020 |
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| 5, Waterside982 m away | 49 m² | 67 m² | +18 m² +37% | 2025 |
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| 95c, Lennard Road372 m away | 69 m² | 87 m² | +18 m² +26% | 2023 |
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| Flat 8, 44, Copers Cope Road712 m away | 81 m² | 99 m² | +18 m² +22% | 2020 |
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| 46, Lucas Road772 m away | 67 m² | 85 m² | +18 m² +27% | 2019 |
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| 75, Birkbeck Road806 m away | 71 m² | 89 m² | +18 m² +25% | 2018 |
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| 57, Wordsworth Road577 m away | 92 m² | 110 m² | +18 m² +20% | 2016 |
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| 55, Ravenscroft Road678 m away | 104 m² | 122 m² | +18 m² +17% | 2015 |
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| 6, Parkside Close872 m away | 69 m² | 87 m² | +18 m² +26% | 2014 |
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| 40, Churchfields Road697 m away | 67 m² | 84 m² | +17 m² +25% | 2026 |
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| 6, Homefield Mews980 m away | 42 m² | 59 m² | +17 m² +40% | 2024 |
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| 32, Rowden Road575 m away | 105 m² | 122 m² | +17 m² +16% | 2023 |
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| 10b, Raleigh Road598 m away | 47 m² | 64 m² | +17 m² +36% | 2021 |
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| Flat 5, Toli Court, 71, Avenue Road845 m away | 78 m² | 95 m² | +17 m² +22% | 2021 |
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| 30, Avenue Road877 m away | 107 m² | 124 m² | +17 m² +16% | 2021 |
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| Flat 1, April Court, 43, Copers Cope Road629 m away | 46 m² | 62 m² | +16 m² +35% | 2025 |
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| Flat 6, Golden Mews, 15, Howard Road910 m away | 54 m² | 70 m² | +16 m² +30% | 2025 |
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| Flat 3, 243, Beckenham Road566 m away | 23 m² | 39 m² | +16 m² +70% | 2024 |
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