Finding extended homes…
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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 1SD
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 Park235 m away | 389 m² | 639 m² | +250 m² +64% | 2023 |
| 2, Southwater Close443 m away | 140 m² | 304 m² | +164 m² +117% | 2022 |
| 16, Foxgrove Avenue410 m away | 176 m² | 301 m² | +125 m² +71% | 2020 |
| 20, Crescent Road864 m away | 312 m² | 435 m² | +123 m² +39% | 2023 |
| 57, Park Road384 m away | 136 m² | 240 m² | +104 m² +76% | 2025 |
| 36c, Albemarle Road778 m away | 139 m² | 240 m² | +101 m² +73% | 2010 |
| 2, The Willows375 m away | 102 m² | 198 m² | +96 m² +94% | 2020 |
| 1, Mayfair Close243 m away | 96 m² | 189 m² | +93 m² +97% | 2021 |
| 87, The Drive402 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 |
| 40, Park Road452 m away | 154 m² | 240 m² | +86 m² +56% | 2022 |
|---|
| 2, Eversleigh Place587 m away | 129 m² | 213 m² | +84 m² +65% | 2024 |
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| Stanbrook, Hayne Road692 m away | 90 m² | 171 m² | +81 m² +90% | 2019 |
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| 8, Lawn Road637 m away | 166 m² | 244 m² | +78 m² +47% | 2024 |
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| 13, Brunswick Terrace, The Knoll538 m away | 268 m² | 344 m² | +76 m² +28% | 2025 |
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| 5, Blair Court, The Knoll353 m away | 125 m² | 199 m² | +74 m² +59% | 2012 |
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| 33, The Drive622 m away | 98 m² | 167 m² | +69 m² +70% | 2021 |
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| 87, Copers Cope Road870 m away | 278 m² | 346 m² | +68 m² +24% | 2021 |
|---|
| 16, Westfield Road930 m away | 145 m² | 210 m² | +65 m² +45% | 2023 |
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| 3, The Drive622 m away | 87 m² | 150 m² | +63 m² +72% | 2022 |
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| 14, Kelsey Park Road638 m away | 149 m² | 212 m² | +63 m² +42% | 2016 |
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| Redroofs, Lawn Road637 m away | 124 m² | 185 m² | +61 m² +49% | 2022 |
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| 24, The Drive589 m away | 94 m² | 154 m² | +60 m² +64% | 2023 |
|---|
| 37, Braeside998 m away | 141 m² | 199 m² | +58 m² +41% | 2022 |
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| 74a, Albemarle Road968 m away | 51 m² | 109 m² | +58 m² +114% | 2011 |
|---|
| 6, Imperial Court, 2, Blakeney Road513 m away | 86 m² | 142 m² | +56 m² +65% | 2020 |
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| 11, The Drive622 m away | 96 m² | 151 m² | +55 m² +57% | 2024 |
|---|
| 2, Westmoat Close721 m away | 146 m² | 196 m² | +50 m² +34% | 2021 |
|---|
| Flat 1, Montreaux Court, 55, Albemarle Road414 m away | 41 m² | 90 m² | +49 m² +120% | 2026 |
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| 32, Crescent Road864 m away | 164 m² | 210 m² | +46 m² +28% | 2016 |
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| Flat 14, Courtlands, 17, Court Downs Road796 m away | 105 m² | 150 m² | +45 m² +43% | 2019 |
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| Flat 15, Kelsey Gate, 27, Court Downs Road775 m away | 165 m² | 210 m² | +45 m² +27% | 2015 |
|---|
| Flat 1, Grovehurst Apartments, 49, Manor Road543 m away | 51 m² | 95 m² | +44 m² +86% | 2022 |
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| 13, Downs Road686 m away | 144 m² | 188 m² | +44 m² +31% | 2020 |
|---|
| 12, Parkside725 m away | 118 m² | 161 m² | +43 m² +36% | 2015 |
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| 74, The Heights853 m away | 105 m² | 147 m² | +42 m² +40% | 2022 |
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| 9, Stanmore Terrace625 m away | 66 m² | 107 m² | +41 m² +62% | 2024 |
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| 3, Overbrae996 m away | 118 m² | 159 m² | +41 m² +35% | 2022 |
|---|
| 34, Foxgrove Road486 m away | 255 m² | 296 m² | +41 m² +16% | 2017 |
|---|
| 1, Limes Road809 m away | 36 m² | 77 m² | +41 m² +114% | 2017 |
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| 1, Grangewood Lane953 m away | 121 m² | 161 m² | +40 m² +33% | 2014 |
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| 40, Church Avenue449 m away | 106 m² | 145 m² | +39 m² +37% | 2026 |
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| 171, Kings Hall Road946 m away | 154 m² | 193 m² | +39 m² +25% | 2025 |
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| 34, Blakeney Road740 m away | 109 m² | 148 m² | +39 m² +36% | 2020 |
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| 26, Blakeney Road740 m away | 103 m² | 141 m² | +38 m² +37% | 2023 |
|---|
| Flat 1, Knewleave House, Copers Cope Road727 m away | 88 m² | 126 m² | +38 m² +43% | 2021 |
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| 56a, Copers Cope Road871 m away | 132 m² | 170 m² | +38 m² +29% | 2018 |
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| 12, The Knoll551 m away | 165 m² | 202 m² | +37 m² +22% | 2025 |
|---|
| Flat 14, Regents Court, 6 - 8, Copers Cope Road214 m away | 29 m² | 66 m² | +37 m² +128% | 2024 |
|---|
| 35, Braeside998 m away | 159 m² | 196 m² | +37 m² +23% | 2024 |
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| The Orchard, Westgate Road671 m away | 59 m² | 96 m² | +37 m² +63% | 2022 |
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| 11, Shaftesbury Road957 m away | 100 m² | 137 m² | +37 m² +37% | 2022 |
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| Flat 7, Minster House, Abbey Park306 m away | 38 m² | 74 m² | +36 m² +95% | 2025 |
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| 49a, High Street494 m away | 110 m² | 146 m² | +36 m² +33% | 2022 |
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| 103, The Drive402 m away | 120 m² | 156 m² | +36 m² +30% | 2021 |
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| 20, Church Avenue449 m away | 96 m² | 132 m² | +36 m² +38% | 2019 |
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| 21, Downs Road686 m away | 100 m² | 135 m² | +35 m² +35% | 2025 |
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| 10a, The Knoll551 m away | 154 m² | 189 m² | +35 m² +23% | 2023 |
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| 35, Crescent Road912 m away | 104 m² | 139 m² | +35 m² +34% | 2023 |
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| 12, Church Avenue449 m away | 96 m² | 131 m² | +35 m² +36% | 2020 |
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| Flat 4, Chartwell Lodge, 9, Brackley Road430 m away | 26 m² | 60 m² | +34 m² +131% | 2026 |
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| Flat 8, Glenavon Lodge, 46, Park Road452 m away | 44 m² | 78 m² | +34 m² +77% | 2021 |
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| 24, Faversham Road893 m away | 82 m² | 116 m² | +34 m² +41% | 2021 |
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| Flat 1, Copperfields, 48, The Avenue513 m away | 56 m² | 88 m² | +32 m² +57% | 2021 |
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| 26, Banavie Gardens564 m away | 43 m² | 74 m² | +31 m² +72% | 2026 |
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| Flat 6, Hill House, 113, Foxgrove Road868 m away | 48 m² | 79 m² | +31 m² +65% | 2025 |
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| 8, Parkside725 m away | 87 m² | 118 m² | +31 m² +36% | 2015 |
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| Flat 6, Waveney Court, 49, The Avenue882 m away | 34 m² | 64 m² | +30 m² +88% | 2022 |
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| Flat 5, Ashbourne Court, 59a, Albemarle Road611 m away | 47 m² | 76 m² | +29 m² +62% | 2025 |
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| 44, Church Avenue449 m away | 99 m² | 128 m² | +29 m² +29% | 2024 |
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| Flat 43, Oakdale, 6, Westgate Road722 m away | 57 m² | 86 m² | +29 m² +51% | 2021 |
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| Flat 3, Raleigh Court, 21a, The Avenue354 m away | 96 m² | 125 m² | +29 m² +30% | 2019 |
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| Flat 5, 31, Manor Road543 m away | 37 m² | 66 m² | +29 m² +78% | 2019 |
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| Flat 8, Glenbyrne Lodge, 38, Albemarle Road778 m away | 50 m² | 79 m² | +29 m² +58% | 2019 |
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| 34, Century Way987 m away | 168 m² | 197 m² | +29 m² +17% | 2017 |
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| Flat 107, Lait House, 1, Albemarle Road211 m away | 53 m² | 81 m² | +28 m² +53% | 2024 |
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| 8, Minshull Place166 m away | 39 m² | 67 m² | +28 m² +72% | 2022 |
|---|
| Flat 4, 31, Manor Road543 m away | 41 m² | 69 m² | +28 m² +68% | 2022 |
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| 7, Thornton Dene768 m away | 153 m² | 181 m² | +28 m² +18% | 2022 |
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| 4, Bearstead Terrace312 m away | 91 m² | 119 m² | +28 m² +31% | 2020 |
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| Flat 3, South Park Court, Park Road82 m away | 69 m² | 97 m² | +28 m² +41% | 2014 |
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| Flat 45, Lait House, 1, Albemarle Road211 m away | 51 m² | 78 m² | +27 m² +53% | 2026 |
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| Flat 7, 42, Albemarle Road778 m away | 53 m² | 80 m² | +27 m² +51% | 2024 |
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| Flat 15, Oval Court, 15, Headingley Drive660 m away | 72 m² | 99 m² | +27 m² +38% | 2020 |
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| 2, Lathkill Court, Hayne Road720 m away | 43 m² | 70 m² | +27 m² +63% | 2019 |
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| 17, Shaftesbury Road957 m away | 95 m² | 121 m² | +26 m² +27% | 2026 |
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| 79, Bromley Road979 m away | 47 m² | 73 m² | +26 m² +55% | 2025 |
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| 22, Vicarage Drive581 m away | 90 m² | 116 m² | +26 m² +29% | 2024 |
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| Flat 47, Lait House, 1, Albemarle Road211 m away | 64 m² | 90 m² | +26 m² +41% | 2023 |
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| 13, Parkwood135 m away | 51 m² | 77 m² | +26 m² +51% | 2022 |
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| 1a, Kelsey Park Road590 m away | 91 m² | 117 m² | +26 m² +29% | 2021 |
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| 36, Albemarle Park396 m away | 122 m² | 147 m² | +25 m² +20% | 2025 |
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| Flat 8, 42, Albemarle Road778 m away | 52 m² | 77 m² | +25 m² +48% | 2023 |
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| 28, Wickham Road705 m away | 165 m² | 190 m² | +25 m² +15% | 2022 |
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| Flat 2, Rye Lodge, 40, Copers Cope Road569 m away | 57 m² | 82 m² | +25 m² +44% | 2020 |
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| Flat 16, Pavilion House, Copers Cope Road902 m away | 112 m² | 137 m² | +25 m² +22% | 2020 |
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| 40, Seychelle Court, 24, Foxgrove Road296 m away | 54 m² | 79 m² | +25 m² +46% | 2016 |
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| 10, Seychelle Court, 24, Foxgrove Road296 m away | 54 m² | 79 m² | +25 m² +46% | 2016 |
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| Flat 6, Bentley House, 45, Albemarle Road414 m away | 63 m² | 87 m² | +24 m² +38% | 2026 |
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| 81b, Copers Cope Road870 m away | 128 m² | 152 m² | +24 m² +19% | 2022 |
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| 27, Seychelle Court, 24, Foxgrove Road296 m away | 54 m² | 78 m² | +24 m² +44% | 2018 |
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| Flat E, Mentmore Lodge, 65, Copers Cope Road870 m away | 70 m² | 94 m² | +24 m² +34% | 2014 |
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| Flat 1, 8, Manor Road585 m away | 36 m² | 60 m² | +24 m² +67% | 2011 |
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| 19, Shaftesbury Road957 m away | 117 m² | 140 m² | +23 m² +20% | 2023 |
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| 3, Canterbury Close188 m away | 89 m² | 112 m² | +23 m² +26% | 2019 |
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| Flat 2, 13, Wickham Road774 m away | 61 m² | 84 m² | +23 m² +38% | 2015 |
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| 27, Hackington Crescent826 m away | 48 m² | 71 m² | +23 m² +48% | 2009 |
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| Flat 20, Rokewood Apartments, 92, High Street502 m away | 49 m² | 71 m² | +22 m² +45% | 2025 |
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| Flat 4, Parker House, Southend Road367 m away | 56 m² | 78 m² | +22 m² +39% | 2024 |
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| Flat 3, 13, Beckenham Road863 m away | 97 m² | 119 m² | +22 m² +23% | 2024 |
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| 21, The Heights776 m away | 145 m² | 167 m² | +22 m² +15% | 2021 |
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| 1, Repton Court363 m away | 119 m² | 141 m² | +22 m² +18% | 2012 |
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| 83a, Foxgrove Road868 m away | 102 m² | 123 m² | +21 m² +21% | 2026 |
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| 100, The Drive388 m away | 81 m² | 102 m² | +21 m² +26% | 2024 |
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| 13, Vicarage Drive581 m away | 88 m² | 109 m² | +21 m² +24% | 2023 |
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| Flat 4, 12, Southend Road0 m away | 58 m² | 79 m² | +21 m² +36% | 2022 |
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| 76, The Drive388 m away | 99 m² | 120 m² | +21 m² +21% | 2022 |
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| Flat 1, 22, Manor Road585 m away | 48 m² | 69 m² | +21 m² +44% | 2022 |
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| Flat 10, Wych End, 49, Copers Cope Road767 m away | 36 m² | 57 m² | +21 m² +58% | 2022 |
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| 14, Repton Court363 m away | 101 m² | 122 m² | +21 m² +21% | 2021 |
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| 1, Ellesmere Avenue975 m away | 102 m² | 123 m² | +21 m² +21% | 2017 |
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| Flat 6, Fircroft, 51, Copers Cope Road781 m away | 50 m² | 71 m² | +21 m² +42% | 2014 |
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| 257, Worsley Bridge Road906 m away | 119 m² | 140 m² | +21 m² +18% | 2011 |
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| 44, Seychelle Court, 24, Foxgrove Road296 m away | 54 m² | 74 m² | +20 m² +37% | 2025 |
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| Flat 4, 7, The Avenue216 m away | 65 m² | 85 m² | +20 m² +31% | 2020 |
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| 15, Blakeney Avenue594 m away | 119 m² | 139 m² | +20 m² +17% | 2019 |
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| 25, Moliner Court, 15, Brackley Road471 m away | 46 m² | 66 m² | +20 m² +43% | 2014 |
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| Flat 5, Rowan Court, 19, The Avenue284 m away | 111 m² | 130 m² | +19 m² +17% | 2026 |
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| Flat 4, Rebecca Court, 9, Copers Cope Road431 m away | 57 m² | 76 m² | +19 m² +33% | 2026 |
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| 7, Silverwood Close538 m away | 73 m² | 92 m² | +19 m² +26% | 2025 |
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| 29, Manor Road543 m away | 48 m² | 67 m² | +19 m² +40% | 2025 |
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| Flat 5, Firbank, 9, Beckenham Road856 m away | 64 m² | 83 m² | +19 m² +30% | 2025 |
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| Flat 7, Archways, 4, Blakeney Road563 m away | 52 m² | 71 m² | +19 m² +37% | 2024 |
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| 2, Century Way987 m away | 126 m² | 145 m² | +19 m² +15% | 2023 |
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| Flat 11, Sandby Court, 8, Sheridan Way952 m away | 55 m² | 74 m² | +19 m² +35% | 2021 |
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| Flat 12, Lait House, 1, Albemarle Road211 m away | 58 m² | 77 m² | +19 m² +33% | 2009 |
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| 18, Bromley Road514 m away | 41 m² | 59 m² | +18 m² +44% | 2026 |
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| 47, Village Way875 m away | 116 m² | 134 m² | +18 m² +16% | 2026 |
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| 5, Waterside598 m away | 49 m² | 67 m² | +18 m² +37% | 2025 |
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| Flat 2, 12, Coopers Mews781 m away | 47 m² | 65 m² | +18 m² +38% | 2024 |
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| 52, Wickham Road887 m away | 116 m² | 134 m² | +18 m² +16% | 2024 |
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| Flat 3, Wyefield, 4, The Knoll551 m away | 60 m² | 78 m² | +18 m² +30% | 2023 |
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| 44, Vicarage Drive581 m away | 52 m² | 70 m² | +18 m² +35% | 2023 |
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| Flat 11, Willow Court, 5a, Copers Cope Road377 m away | 61 m² | 79 m² | +18 m² +30% | 2022 |
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| Flat 8, St. Margarets, Beckenham Place Park443 m away | 79 m² | 97 m² | +18 m² +23% | 2021 |
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| Flat 6, The Beeches, 26, Albemarle Road447 m away | 71 m² | 89 m² | +18 m² +25% | 2020 |
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| Flat 8, 44, Copers Cope Road676 m away | 81 m² | 99 m² | +18 m² +22% | 2020 |
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| 15, Lankton Close787 m away | 109 m² | 127 m² | +18 m² +17% | 2019 |
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| Flat 18, Sinclair Court, 14, Copers Cope Road250 m away | 42 m² | 60 m² | +18 m² +43% | 2014 |
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| 6, Homefield Mews462 m away | 42 m² | 59 m² | +17 m² +40% | 2024 |
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| 23, Minshull Place166 m away | 59 m² | 76 m² | +17 m² +29% | 2023 |
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| 21, Brackens, 4, Brackley Road505 m away | 48 m² | 65 m² | +17 m² +35% | 2023 |
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| 6, Hurst Court, Southend Road373 m away | 46 m² | 63 m² | +17 m² +37% | 2020 |
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| Flat 4, 7, Bevington Road626 m away | 23 m² | 40 m² | +17 m² +74% | 2019 |
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| 47, Chancery Lane738 m away | 111 m² | 128 m² | +17 m² +15% | 2017 |
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| 15, Ellesmere Avenue975 m away | 109 m² | 126 m² | +17 m² +16% | 2014 |
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| 20, Apex Close488 m away | 55 m² | 71 m² | +16 m² +29% | 2025 |
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| 10b, Wickham Road705 m away | 48 m² | 64 m² | +16 m² +33% | 2025 |
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| Flat 1, April Court, 43, Copers Cope Road781 m away | 46 m² | 62 m² | +16 m² +35% | 2025 |
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| 14, Canterbury Close188 m away | 89 m² | 105 m² | +16 m² +18% | 2023 |
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| 15, Glendale Mews603 m away | 92 m² | 108 m² | +16 m² +17% | 2020 |
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| Flat 2, 13, Manor Road543 m away | 24 m² | 40 m² | +16 m² +67% | 2019 |
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| 2, Seychelle Court, 24, Foxgrove Road296 m away | 54 m² | 70 m² | +16 m² +30% | 2016 |
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| Flat 10, Camellia Court, 18, Copers Cope Road214 m away | 53 m² | 69 m² | +16 m² +30% | 2014 |
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| Flat 20, Oakdale, 6, Westgate Road722 m away | 62 m² | 78 m² | +16 m² +26% | 2014 |
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| 34, Springbourne Court787 m away | 90 m² | 106 m² | +16 m² +18% | 2012 |
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| 32, Kingston Crescent785 m away | 75 m² | 90 m² | +15 m² +20% | 2024 |
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| Flat 14, Northview, 56, Albemarle Road968 m away | 85 m² | 100 m² | +15 m² +18% | 2024 |
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| 90, The Drive388 m away | 96 m² | 111 m² | +15 m² +16% | 2022 |
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| Flat 7, Cypress Court, 83, Albemarle Road932 m away | 20 m² | 35 m² | +15 m² +75% | 2021 |
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| 9, Oakhill Road985 m away | 92 m² | 107 m² | +15 m² +16% | 2021 |
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| Flat 2, Regents Court, 6 - 8, Copers Cope Road214 m away | 76 m² | 91 m² | +15 m² +20% | 2019 |
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| 3, Devonshire Court, 15, Westgate Road657 m away | 67 m² | 82 m² | +15 m² +22% | 2014 |
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