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 1NN
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 |
|---|---|---|---|---|
| Two Elms, Beckenham Place Park571 m away | 389 m² | 639 m² | +250 m² +64% | 2023 |
| 2, Southwater Close836 m away | 140 m² | 304 m² | +164 m² +117% | 2022 |
| 18, Reddons Road957 m away | 246 m² | 387 m² | +141 m² +57% | 2012 |
| 16, Foxgrove Avenue828 m away | 176 m² | 301 m² | +125 m² +71% | 2020 |
| 35, Hayne Road712 m away | 199 m² | 305 m² | +106 m² +53% | 2014 |
| 57, Park Road217 m away | 136 m² | 240 m² | +104 m² +76% | 2025 |
| 2, The Willows163 m away | 102 m² | 198 m² | +96 m² +94% | 2020 |
| 1, Mayfair Close625 m away | 96 m² | 189 m² | +93 m² +97% | 2021 |
| 87, The Drive262 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.
| 80 m² |
| 172 m² |
| +92 m² +115% |
| 2019 |
| 67, Kings Hall Road761 m away | 124 m² | 215 m² | +91 m² +73% | 2020 |
|---|
| 27, Clock House Road940 m away | 64 m² | 152 m² | +88 m² +138% | 2024 |
|---|
| 40, Park Road297 m away | 154 m² | 240 m² | +86 m² +56% | 2022 |
|---|
| 2, Eversleigh Place573 m away | 129 m² | 213 m² | +84 m² +65% | 2024 |
|---|
| Stanbrook, Hayne Road317 m away | 90 m² | 171 m² | +81 m² +90% | 2019 |
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| 8, Lawn Road333 m away | 166 m² | 244 m² | +78 m² +47% | 2024 |
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| 13, Brunswick Terrace, The Knoll835 m away | 268 m² | 344 m² | +76 m² +28% | 2025 |
|---|
| 5, Blair Court, The Knoll600 m away | 125 m² | 199 m² | +74 m² +59% | 2012 |
|---|
| 57, Hampden Avenue999 m away | 98 m² | 170 m² | +72 m² +73% | 2025 |
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| 33, The Drive462 m away | 98 m² | 167 m² | +69 m² +70% | 2021 |
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| 87, Copers Cope Road610 m away | 278 m² | 346 m² | +68 m² +24% | 2021 |
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| 16, Westfield Road648 m away | 145 m² | 210 m² | +65 m² +45% | 2023 |
|---|
| 12, Cedars Road760 m away | 231 m² | 294 m² | +63 m² +27% | 2026 |
|---|
| 3, The Drive462 m away | 87 m² | 150 m² | +63 m² +72% | 2022 |
|---|
| 14, Kelsey Park Road693 m away | 149 m² | 212 m² | +63 m² +42% | 2016 |
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| 48, Barnmead Road968 m away | 117 m² | 179 m² | +62 m² +53% | 2020 |
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| Redroofs, Lawn Road333 m away | 124 m² | 185 m² | +61 m² +49% | 2022 |
|---|
| 24, The Drive458 m away | 94 m² | 154 m² | +60 m² +64% | 2023 |
|---|
| 6, Imperial Court, 2, Blakeney Road145 m away | 86 m² | 142 m² | +56 m² +65% | 2020 |
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| 11, The Drive462 m away | 96 m² | 151 m² | +55 m² +57% | 2024 |
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| 43, Chaffinch Road588 m away | 87 m² | 139 m² | +52 m² +60% | 2025 |
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| Flat 1, Montreaux Court, 55, Albemarle Road784 m away | 41 m² | 90 m² | +49 m² +120% | 2026 |
|---|
| 37, Belmont Road993 m away | 86 m² | 134 m² | +48 m² +56% | 2024 |
|---|
| 87, Chaffinch Road588 m away | 91 m² | 139 m² | +48 m² +53% | 2022 |
|---|
| 70, Durban Road871 m away | 93 m² | 141 m² | +48 m² +52% | 2019 |
|---|
| 13, Durban Road901 m away | 90 m² | 138 m² | +48 m² +53% | 2018 |
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| 90, Durban Road871 m away | 90 m² | 136 m² | +46 m² +51% | 2025 |
|---|
| 76, Kings Hall Road871 m away | 203 m² | 248 m² | +45 m² +22% | 2026 |
|---|
| Flat 14, Courtlands, 17, Court Downs Road934 m away | 105 m² | 150 m² | +45 m² +43% | 2019 |
|---|
| Flat 15, Kelsey Gate, 27, Court Downs Road869 m away | 165 m² | 210 m² | +45 m² +27% | 2015 |
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| 57, Belmont Road993 m away | 133 m² | 177 m² | +44 m² +33% | 2025 |
|---|
| Flat 1, Grovehurst Apartments, 49, Manor Road703 m away | 51 m² | 95 m² | +44 m² +86% | 2022 |
|---|
| 13, Downs Road888 m away | 144 m² | 188 m² | +44 m² +31% | 2020 |
|---|
| 12, Parkside841 m away | 118 m² | 161 m² | +43 m² +36% | 2015 |
|---|
| 90, Belmont Road983 m away | 74 m² | 116 m² | +42 m² +57% | 2023 |
|---|
| 9, Stanmore Terrace660 m away | 66 m² | 107 m² | +41 m² +62% | 2024 |
|---|
| 42, Clock House Road902 m away | 139 m² | 180 m² | +41 m² +29% | 2020 |
|---|
| 34, Foxgrove Road915 m away | 255 m² | 296 m² | +41 m² +16% | 2017 |
|---|
| 43, Durban Road901 m away | 89 m² | 129 m² | +40 m² +45% | 2017 |
|---|
| 1, Grangewood Lane713 m away | 121 m² | 161 m² | +40 m² +33% | 2014 |
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| 40, Church Avenue422 m away | 106 m² | 145 m² | +39 m² +37% | 2026 |
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| 171, Kings Hall Road552 m away | 154 m² | 193 m² | +39 m² +25% | 2025 |
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| 26, Barnmead Road968 m away | 194 m² | 233 m² | +39 m² +20% | 2021 |
|---|
| 34, Blakeney Road310 m away | 109 m² | 148 m² | +39 m² +36% | 2020 |
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| 26, Blakeney Road310 m away | 103 m² | 141 m² | +38 m² +37% | 2023 |
|---|
| Flat 1, Knewleave House, Copers Cope Road365 m away | 88 m² | 126 m² | +38 m² +43% | 2021 |
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| 44, Durban Road871 m away | 91 m² | 129 m² | +38 m² +42% | 2020 |
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| 56a, Copers Cope Road700 m away | 132 m² | 170 m² | +38 m² +29% | 2018 |
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| 51, Belmont Road993 m away | 99 m² | 136 m² | +37 m² +37% | 2026 |
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| 12, The Knoll819 m away | 165 m² | 202 m² | +37 m² +22% | 2025 |
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| Flat 14, Regents Court, 6 - 8, Copers Cope Road217 m away | 29 m² | 66 m² | +37 m² +128% | 2024 |
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| 11, Shaftesbury Road741 m away | 100 m² | 137 m² | +37 m² +37% | 2022 |
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| Flat 7, Minster House, Abbey Park391 m away | 38 m² | 74 m² | +36 m² +95% | 2025 |
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| 40, Barnmead Road968 m away | 164 m² | 200 m² | +36 m² +22% | 2023 |
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| 49a, High Street577 m away | 110 m² | 146 m² | +36 m² +33% | 2022 |
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| 103, The Drive262 m away | 120 m² | 156 m² | +36 m² +30% | 2021 |
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| 20, Church Avenue422 m away | 96 m² | 132 m² | +36 m² +38% | 2019 |
|---|
| 21, Downs Road888 m away | 100 m² | 135 m² | +35 m² +35% | 2025 |
|---|
| 10a, The Knoll819 m away | 154 m² | 189 m² | +35 m² +23% | 2023 |
|---|
| 68, Durban Road871 m away | 107 m² | 142 m² | +35 m² +33% | 2022 |
|---|
| 12, Church Avenue422 m away | 96 m² | 131 m² | +35 m² +36% | 2020 |
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| Flat 4, Chartwell Lodge, 9, Brackley Road412 m away | 26 m² | 60 m² | +34 m² +131% | 2026 |
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| Flat 8, Glenavon Lodge, 46, Park Road297 m away | 44 m² | 78 m² | +34 m² +77% | 2021 |
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| 24, Faversham Road675 m away | 82 m² | 116 m² | +34 m² +41% | 2021 |
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| 19, Eastwell Close904 m away | 90 m² | 123 m² | +33 m² +37% | 2021 |
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| 63, Chaffinch Road588 m away | 90 m² | 122 m² | +32 m² +36% | 2025 |
|---|
| Flat 1, Copperfields, 48, The Avenue922 m away | 56 m² | 88 m² | +32 m² +57% | 2021 |
|---|
| 62, Barnmead Road968 m away | 120 m² | 151 m² | +31 m² +26% | 2026 |
|---|
| 26, Banavie Gardens986 m away | 43 m² | 74 m² | +31 m² +72% | 2026 |
|---|
| Flat 7, Clock House Court, Clock House Road840 m away | 39 m² | 70 m² | +31 m² +79% | 2019 |
|---|
| 8, Parkside841 m away | 87 m² | 118 m² | +31 m² +36% | 2015 |
|---|
| 17, Durban Road901 m away | 89 m² | 119 m² | +30 m² +34% | 2021 |
|---|
| 60, Rowden Road598 m away | 106 m² | 136 m² | +30 m² +28% | 2018 |
|---|
| 3, Durban Road901 m away | 80 m² | 110 m² | +30 m² +38% | 2017 |
|---|
| Flat 5, Ashbourne Court, 59a, Albemarle Road998 m away | 47 m² | 76 m² | +29 m² +62% | 2025 |
|---|
| 44, Church Avenue422 m away | 99 m² | 128 m² | +29 m² +29% | 2024 |
|---|
| Flat 5, 31, Manor Road703 m away | 37 m² | 66 m² | +29 m² +78% | 2019 |
|---|
| Flat 3, Raleigh Court, 21a, The Avenue776 m away | 96 m² | 125 m² | +29 m² +30% | 2019 |
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| 1a, Cedars Road805 m away | 109 m² | 138 m² | +29 m² +27% | 2018 |
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| 34, Century Way766 m away | 168 m² | 197 m² | +29 m² +17% | 2017 |
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| 14, Durban Road871 m away | 101 m² | 130 m² | +29 m² +29% | 2017 |
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| Flat 107, Lait House, 1, Albemarle Road471 m away | 53 m² | 81 m² | +28 m² +53% | 2024 |
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| 8, Minshull Place314 m away | 39 m² | 67 m² | +28 m² +72% | 2022 |
|---|
| Flat 4, 31, Manor Road703 m away | 41 m² | 69 m² | +28 m² +68% | 2022 |
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| 7, Thornton Dene726 m away | 153 m² | 181 m² | +28 m² +18% | 2022 |
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| 4, Bearstead Terrace123 m away | 91 m² | 119 m² | +28 m² +31% | 2020 |
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| Flat 3, South Park Court, Park Road364 m away | 69 m² | 97 m² | +28 m² +41% | 2014 |
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| 51, Durban Road901 m away | 88 m² | 116 m² | +28 m² +32% | 2010 |
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| Flat 45, Lait House, 1, Albemarle Road471 m away | 51 m² | 78 m² | +27 m² +53% | 2026 |
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| 50, Barnmead Road968 m away | 150 m² | 177 m² | +27 m² +18% | 2021 |
|---|
| Flat 15, Oval Court, 15, Headingley Drive770 m away | 72 m² | 99 m² | +27 m² +38% | 2020 |
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| 2, Lathkill Court, Hayne Road350 m away | 43 m² | 70 m² | +27 m² +63% | 2019 |
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| 17, Shaftesbury Road741 m away | 95 m² | 121 m² | +26 m² +27% | 2026 |
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| 22, Vicarage Drive344 m away | 90 m² | 116 m² | +26 m² +29% | 2024 |
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| Flat 47, Lait House, 1, Albemarle Road471 m away | 64 m² | 90 m² | +26 m² +41% | 2023 |
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| 13, Parkwood298 m away | 51 m² | 77 m² | +26 m² +51% | 2022 |
|---|
| 1a, Kelsey Park Road661 m away | 91 m² | 117 m² | +26 m² +29% | 2021 |
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| 36, Albemarle Park723 m away | 122 m² | 147 m² | +25 m² +20% | 2025 |
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| 28, Wickham Road941 m away | 165 m² | 190 m² | +25 m² +15% | 2022 |
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| Flat 2, Rye Lodge, 40, Copers Cope Road205 m away | 57 m² | 82 m² | +25 m² +44% | 2020 |
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| Flat 16, Pavilion House, Copers Cope Road847 m away | 112 m² | 137 m² | +25 m² +22% | 2020 |
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| 39, Durban Road901 m away | 89 m² | 114 m² | +25 m² +28% | 2019 |
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| 40, Seychelle Court, 24, Foxgrove Road726 m away | 54 m² | 79 m² | +25 m² +46% | 2016 |
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| 10, Seychelle Court, 24, Foxgrove Road726 m away | 54 m² | 79 m² | +25 m² +46% | 2016 |
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| Flat 6, Bentley House, 45, Albemarle Road784 m away | 63 m² | 87 m² | +24 m² +38% | 2026 |
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| 81b, Copers Cope Road610 m away | 128 m² | 152 m² | +24 m² +19% | 2022 |
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| 27, Seychelle Court, 24, Foxgrove Road726 m away | 54 m² | 78 m² | +24 m² +44% | 2018 |
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| 19, Chaffinch Road771 m away | 93 m² | 117 m² | +24 m² +26% | 2018 |
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| Flat E, Mentmore Lodge, 65, Copers Cope Road610 m away | 70 m² | 94 m² | +24 m² +34% | 2014 |
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| Flat 1, 8, Manor Road752 m away | 36 m² | 60 m² | +24 m² +67% | 2011 |
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| 19, Shaftesbury Road741 m away | 117 m² | 140 m² | +23 m² +20% | 2023 |
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| 71, Durban Road901 m away | 109 m² | 132 m² | +23 m² +21% | 2022 |
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| 3, Canterbury Close548 m away | 89 m² | 112 m² | +23 m² +26% | 2019 |
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| 27, Hackington Crescent946 m away | 48 m² | 71 m² | +23 m² +48% | 2009 |
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| Flat 20, Rokewood Apartments, 92, High Street528 m away | 49 m² | 71 m² | +22 m² +45% | 2025 |
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| Flat 4, Parker House, Southend Road503 m away | 56 m² | 78 m² | +22 m² +39% | 2024 |
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| Flat 3, 13, Beckenham Road572 m away | 97 m² | 119 m² | +22 m² +23% | 2024 |
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| 46, Belmont Road958 m away | 84 m² | 106 m² | +22 m² +26% | 2018 |
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| 1, Repton Court762 m away | 119 m² | 141 m² | +22 m² +18% | 2012 |
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| 100, The Drive289 m away | 81 m² | 102 m² | +21 m² +26% | 2024 |
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| 13, Vicarage Drive344 m away | 88 m² | 109 m² | +21 m² +24% | 2023 |
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| 76, The Drive289 m away | 99 m² | 120 m² | +21 m² +21% | 2022 |
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| Flat 10, Wych End, 49, Copers Cope Road427 m away | 36 m² | 57 m² | +21 m² +58% | 2022 |
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| Flat 4, 12, Southend Road431 m away | 58 m² | 79 m² | +21 m² +36% | 2022 |
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| Flat 1, 22, Manor Road752 m away | 48 m² | 69 m² | +21 m² +44% | 2022 |
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| 14, Repton Court762 m away | 101 m² | 122 m² | +21 m² +21% | 2021 |
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| 177, Beckenham Road838 m away | 29 m² | 50 m² | +21 m² +72% | 2017 |
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| Flat 6, Fircroft, 51, Copers Cope Road446 m away | 50 m² | 71 m² | +21 m² +42% | 2014 |
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| 257, Worsley Bridge Road983 m away | 119 m² | 140 m² | +21 m² +18% | 2011 |
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| 8, Thayers Farm Road827 m away | 68 m² | 88 m² | +20 m² +29% | 2026 |
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| 44, Seychelle Court, 24, Foxgrove Road726 m away | 54 m² | 74 m² | +20 m² +37% | 2025 |
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| 66, Durban Road871 m away | 89 m² | 109 m² | +20 m² +22% | 2022 |
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| Flat 4, 7, The Avenue636 m away | 65 m² | 85 m² | +20 m² +31% | 2020 |
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| 15, Blakeney Avenue163 m away | 119 m² | 139 m² | +20 m² +17% | 2019 |
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| 71, Cedars Road829 m away | 126 m² | 146 m² | +20 m² +16% | 2018 |
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| 25, Moliner Court, 15, Brackley Road402 m away | 46 m² | 66 m² | +20 m² +43% | 2014 |
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| Flat 4, Rebecca Court, 9, Copers Cope Road0 m away | 57 m² | 76 m² | +19 m² +33% | 2026 |
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| Flat 5, Rowan Court, 19, The Avenue703 m away | 111 m² | 130 m² | +19 m² +17% | 2026 |
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| 7, Silverwood Close400 m away | 73 m² | 92 m² | +19 m² +26% | 2025 |
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| Flat 5, Firbank, 9, Beckenham Road572 m away | 64 m² | 83 m² | +19 m² +30% | 2025 |
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| 29, Manor Road703 m away | 48 m² | 67 m² | +19 m² +40% | 2025 |
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| Flat 7, Archways, 4, Blakeney Road177 m away | 52 m² | 71 m² | +19 m² +37% | 2024 |
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| 2, Century Way766 m away | 126 m² | 145 m² | +19 m² +15% | 2023 |
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| Flat 11, Sandby Court, 8, Sheridan Way546 m away | 55 m² | 74 m² | +19 m² +35% | 2021 |
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| Flat 12, Lait House, 1, Albemarle Road471 m away | 58 m² | 77 m² | +19 m² +33% | 2009 |
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| 18, Bromley Road730 m away | 41 m² | 59 m² | +18 m² +44% | 2026 |
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| 47, Village Way766 m away | 116 m² | 134 m² | +18 m² +16% | 2026 |
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| 5, Waterside274 m away | 49 m² | 67 m² | +18 m² +37% | 2025 |
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| Flat 2, 12, Coopers Mews682 m away | 47 m² | 65 m² | +18 m² +38% | 2024 |
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| 44, Vicarage Drive344 m away | 52 m² | 70 m² | +18 m² +35% | 2023 |
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| Flat 3, Wyefield, 4, The Knoll819 m away | 60 m² | 78 m² | +18 m² +30% | 2023 |
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| Flat 11, Willow Court, 5a, Copers Cope Road64 m away | 61 m² | 79 m² | +18 m² +30% | 2022 |
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| Flat 8, St. Margarets, Beckenham Place Park836 m away | 79 m² | 97 m² | +18 m² +23% | 2021 |
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| Flat 8, 44, Copers Cope Road340 m away | 81 m² | 99 m² | +18 m² +22% | 2020 |
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| Flat 6, The Beeches, 26, Albemarle Road800 m away | 71 m² | 89 m² | +18 m² +25% | 2020 |
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| Flat 18, Sinclair Court, 14, Copers Cope Road185 m away | 42 m² | 60 m² | +18 m² +43% | 2014 |
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| 6, Homefield Mews103 m away | 42 m² | 59 m² | +17 m² +40% | 2024 |
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| 23, Minshull Place314 m away | 59 m² | 76 m² | +17 m² +29% | 2023 |
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| 21, Brackens, 4, Brackley Road463 m away | 48 m² | 65 m² | +17 m² +35% | 2023 |
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| 32, Rowden Road598 m away | 105 m² | 122 m² | +17 m² +16% | 2023 |
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| 6, Hurst Court, Southend Road572 m away | 46 m² | 63 m² | +17 m² +37% | 2020 |
|---|
| Flat 4, 7, Bevington Road738 m away | 23 m² | 40 m² | +17 m² +74% | 2019 |
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| Flat 1, April Court, 43, Copers Cope Road446 m away | 46 m² | 62 m² | +16 m² +35% | 2025 |
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| 20, Apex Close893 m away | 55 m² | 71 m² | +16 m² +29% | 2025 |
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| 10b, Wickham Road941 m away | 48 m² | 64 m² | +16 m² +33% | 2025 |
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| 14, Canterbury Close548 m away | 89 m² | 105 m² | +16 m² +18% | 2023 |
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| 15, Glendale Mews941 m away | 92 m² | 108 m² | +16 m² +17% | 2020 |
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| Flat 2, 13, Manor Road703 m away | 24 m² | 40 m² | +16 m² +67% | 2019 |
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| 2a, Sidney Road979 m away | 54 m² | 70 m² | +16 m² +30% | 2019 |
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| 31, Hampden Avenue999 m away | 78 m² | 94 m² | +16 m² +21% | 2019 |
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| 2, Seychelle Court, 24, Foxgrove Road726 m away | 54 m² | 70 m² | +16 m² +30% | 2016 |
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| Flat 10, Camellia Court, 18, Copers Cope Road217 m away | 53 m² | 69 m² | +16 m² +30% | 2014 |
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| 116a, Wessex Court934 m away | 40 m² | 56 m² | +16 m² +40% | 2010 |
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| 32, Kingston Crescent385 m away | 75 m² | 90 m² | +15 m² +20% | 2024 |
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| Flat 11, Knights Court, 85, Kings Hall Road761 m away | 47 m² | 62 m² | +15 m² +32% | 2024 |
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| Registry Heights, 34, Beckenham Road737 m away | 41 m² | 56 m² | +15 m² +37% | 2023 |
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| 90, The Drive289 m away | 96 m² | 111 m² | +15 m² +16% | 2022 |
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| Flat 2, Regents Court, 6 - 8, Copers Cope Road217 m away | 76 m² | 91 m² | +15 m² +20% | 2019 |
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| 3, Devonshire Court, 15, Westgate Road988 m away | 67 m² | 82 m² | +15 m² +22% | 2014 |
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