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 BR1 2SA
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 |
|---|---|---|---|---|
| Timberley, Westbury Road789 m away | 226 m² | 563 m² | +337 m² +149% | 2025 |
| Caragh House, Chislehurst Road758 m away | 223 m² | 500 m² | +277 m² +124% | 2014 |
| 3, Southborough Road992 m away | 197 m² | 435 m² | +238 m² +121% | 2020 |
| Denby, 14, Pines Road709 m away | 134 m² | 327 m² | +193 m² +144% | 2020 |
| 19, Woodlands Road936 m away | 158 m² | 312 m² | +154 m² +97% | 2023 |
| 5, Heath Park Drive549 m away | 176 m² | 319 m² | +143 m² +81% | 2022 |
| 60, Hill Brow815 m away | 189 m² | 329 m² | +140 m² +74% | 2018 |
| 91, Clarence Road427 m away | 120 m² | 243 m² | +123 m² +102% | 2014 |
| 20, Carisbrooke Road914 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.
| 92 m² |
| 209 m² |
| +117 m² +127% |
| 2025 |
| St Ouen, Southlands Grove822 m away | 156 m² | 260 m² | +104 m² +67% | 2025 |
|---|
| Conifers, Westbury Road789 m away | 191 m² | 281 m² | +90 m² +47% | 2019 |
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| 92, Murray Avenue601 m away | 134 m² | 223 m² | +89 m² +66% | 2017 |
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| 17, Orchard Road889 m away | 153 m² | 236 m² | +83 m² +54% | 2019 |
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| 65, Bishops Avenue359 m away | 144 m² | 226 m² | +82 m² +57% | 2025 |
|---|
| 261, Southlands Road907 m away | 106 m² | 181 m² | +75 m² +71% | 2019 |
|---|
| 25, Rafford Way978 m away | 94 m² | 167 m² | +73 m² +78% | 2026 |
|---|
| 154, Southlands Road804 m away | 61 m² | 134 m² | +73 m² +120% | 2023 |
|---|
| Southlands, Westbury Road789 m away | 194 m² | 267 m² | +73 m² +38% | 2022 |
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| Three Pines, Sundridge Avenue957 m away | 222 m² | 293 m² | +71 m² +32% | 2020 |
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| 38, The Chase788 m away | 121 m² | 191 m² | +70 m² +58% | 2026 |
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| 18, Bickley Crescent779 m away | 90 m² | 160 m² | +70 m² +78% | 2024 |
|---|
| 1 Hailing Mews, 21, Wendover Road811 m away | 72 m² | 140 m² | +68 m² +94% | 2021 |
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| 2, Heron Court977 m away | 83 m² | 148 m² | +65 m² +78% | 2026 |
|---|
| 36, Southborough Road881 m away | 78 m² | 142 m² | +64 m² +82% | 2015 |
|---|
| 7, Roberton Drive673 m away | 205 m² | 266 m² | +61 m² +30% | 2015 |
|---|
| 63, Harwood Avenue924 m away | 147 m² | 207 m² | +60 m² +41% | 2024 |
|---|
| 179, Southlands Road785 m away | 86 m² | 146 m² | +60 m² +70% | 2023 |
|---|
| Greenacres, Bickley Park Road913 m away | 292 m² | 350 m² | +58 m² +20% | 2022 |
|---|
| 55, Glanville Road661 m away | 85 m² | 141 m² | +56 m² +66% | 2025 |
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| 113b, Widmore Road808 m away | 52 m² | 108 m² | +56 m² +108% | 2019 |
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| 3, Plaxtol Close611 m away | 151 m² | 207 m² | +56 m² +37% | 2016 |
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| 13, Fashoda Road698 m away | 94 m² | 149 m² | +55 m² +59% | 2023 |
|---|
| 39, Palace View830 m away | 107 m² | 162 m² | +55 m² +51% | 2019 |
|---|
| 106, Palace View557 m away | 105 m² | 160 m² | +55 m² +52% | 2016 |
|---|
| 31, Southborough Road992 m away | 174 m² | 226 m² | +52 m² +30% | 2020 |
|---|
| 55, Bourne Road642 m away | 73 m² | 125 m² | +52 m² +71% | 2017 |
|---|
| 94, Palace View557 m away | 113 m² | 164 m² | +51 m² +45% | 2021 |
|---|
| 3, Shawfield Park551 m away | 93 m² | 143 m² | +50 m² +54% | 2026 |
|---|
| 2, Widmore Lodge Road231 m away | 93 m² | 143 m² | +50 m² +54% | 2025 |
|---|
| 7, Chislehurst Road461 m away | 129 m² | 179 m² | +50 m² +39% | 2020 |
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| 29a, Rochester Avenue508 m away | 113 m² | 163 m² | +50 m² +44% | 2020 |
|---|
| 118, Homesdale Road494 m away | 66 m² | 115 m² | +49 m² +74% | 2025 |
|---|
| 31, Southlands Road943 m away | 90 m² | 139 m² | +49 m² +54% | 2024 |
|---|
| 16, The Chase788 m away | 115 m² | 164 m² | +49 m² +43% | 2023 |
|---|
| 38, Cedar Road366 m away | 105 m² | 154 m² | +49 m² +47% | 2018 |
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| 207, Widmore Road392 m away | 135 m² | 182 m² | +47 m² +35% | 2022 |
|---|
| 33, Rafford Way978 m away | 118 m² | 164 m² | +46 m² +39% | 2026 |
|---|
| 10, Heron Court977 m away | 86 m² | 132 m² | +46 m² +53% | 2022 |
|---|
| 69, Homesdale Road636 m away | 113 m² | 159 m² | +46 m² +41% | 2021 |
|---|
| 40, Cedar Road366 m away | 86 m² | 131 m² | +45 m² +52% | 2026 |
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| 1a, Gundulph Road514 m away | 61 m² | 106 m² | +45 m² +74% | 2024 |
|---|
| 104, Murray Avenue601 m away | 121 m² | 166 m² | +45 m² +37% | 2024 |
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| 3, Henville Road866 m away | 123 m² | 168 m² | +45 m² +37% | 2020 |
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| 238a, Southlands Road972 m away | 127 m² | 171 m² | +44 m² +35% | 2025 |
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| 22, Raglan Road812 m away | 88 m² | 132 m² | +44 m² +50% | 2023 |
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| 22, Stanley Road748 m away | 89 m² | 133 m² | +44 m² +49% | 2022 |
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| 61, Bishops Avenue359 m away | 86 m² | 130 m² | +44 m² +51% | 2017 |
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| 35, Haywood Road682 m away | 87 m² | 130 m² | +43 m² +49% | 2019 |
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| 57, Forde Avenue482 m away | 101 m² | 144 m² | +43 m² +43% | 2017 |
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| 32, Glanville Road673 m away | 89 m² | 132 m² | +43 m² +48% | 2014 |
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| 9, Amesbury Road202 m away | 89 m² | 131 m² | +42 m² +47% | 2025 |
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| 37, Glanville Road661 m away | 84 m² | 126 m² | +42 m² +50% | 2021 |
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| 22, Napier Road815 m away | 77 m² | 118 m² | +41 m² +53% | 2023 |
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| 65, Widmore Lodge Road215 m away | 87 m² | 127 m² | +40 m² +46% | 2026 |
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| The Cottage, Page Heath Villas293 m away | 60 m² | 100 m² | +40 m² +67% | 2022 |
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| West House, Plaistow Lane699 m away | 136 m² | 175 m² | +39 m² +29% | 2025 |
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| 5, Widmore Lodge Road215 m away | 95 m² | 133 m² | +38 m² +40% | 2026 |
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| 78, Nightingale Lane237 m away | 92 m² | 130 m² | +38 m² +41% | 2025 |
|---|
| 1, Asprey Place720 m away | 232 m² | 270 m² | +38 m² +16% | 2022 |
|---|
| 1a, Southlands Road943 m away | 78 m² | 116 m² | +38 m² +49% | 2020 |
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| Flat 1, 70, Homefield Road819 m away | 62 m² | 99 m² | +37 m² +60% | 2021 |
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| 5, Westwood Close436 m away | 175 m² | 212 m² | +37 m² +21% | 2020 |
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| 21, Southborough Road992 m away | 161 m² | 197 m² | +36 m² +22% | 2022 |
|---|
| 31, Southlands Grove766 m away | 107 m² | 143 m² | +36 m² +34% | 2016 |
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| 5, Chelsea Court, Southlands Grove766 m away | 124 m² | 160 m² | +36 m² +29% | 2014 |
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| 30, Stanley Road746 m away | 79 m² | 114 m² | +35 m² +44% | 2025 |
|---|
| 20, Bird In Hand Lane377 m away | 213 m² | 248 m² | +35 m² +16% | 2019 |
|---|
| 71, Forde Avenue482 m away | 131 m² | 165 m² | +34 m² +26% | 2023 |
|---|
| 15, Ferndale226 m away | 87 m² | 121 m² | +34 m² +39% | 2022 |
|---|
| 158, Homesdale Road377 m away | 63 m² | 97 m² | +34 m² +54% | 2020 |
|---|
| 111, Homesdale Road470 m away | 96 m² | 130 m² | +34 m² +35% | 2020 |
|---|
| 49, Forde Avenue482 m away | 94 m² | 128 m² | +34 m² +36% | 2018 |
|---|
| Flat 15, Forest Lawns, 33, Orchard Road854 m away | 48 m² | 82 m² | +34 m² +71% | 2015 |
|---|
| 19, Elliott Road749 m away | 91 m² | 124 m² | +33 m² +36% | 2021 |
|---|
| 256, Southlands Road972 m away | 101 m² | 134 m² | +33 m² +33% | 2017 |
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| 120, Southlands Road804 m away | 74 m² | 106 m² | +32 m² +43% | 2024 |
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| 24, Southlands Road974 m away | 75 m² | 107 m² | +32 m² +43% | 2022 |
|---|
| 3, Inglewood Copse999 m away | 120 m² | 152 m² | +32 m² +27% | 2022 |
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| 5, Gundulph Road514 m away | 80 m² | 112 m² | +32 m² +40% | 2016 |
|---|
| 10, Copley Dene709 m away | 145 m² | 177 m² | +32 m² +22% | 2016 |
|---|
| 22, Bourne Road690 m away | 95 m² | 126 m² | +31 m² +33% | 2026 |
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| Flat 5, Highview, 22, Sundridge Avenue788 m away | 147 m² | 178 m² | +31 m² +21% | 2025 |
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| 35, Southborough Road992 m away | 172 m² | 203 m² | +31 m² +18% | 2024 |
|---|
| 20, Glanville Road673 m away | 84 m² | 115 m² | +31 m² +37% | 2022 |
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| 44, Bishops Avenue380 m away | 131 m² | 161 m² | +30 m² +23% | 2024 |
|---|
| 71, Bishops Avenue359 m away | 93 m² | 123 m² | +30 m² +32% | 2020 |
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| 21, Amesbury Road202 m away | 109 m² | 139 m² | +30 m² +28% | 2016 |
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| 111, Masons Hill913 m away | 44 m² | 74 m² | +30 m² +68% | 2012 |
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| 14, Cowper Road933 m away | 107 m² | 136 m² | +29 m² +27% | 2026 |
|---|
| 60, Bourne Road690 m away | 62 m² | 91 m² | +29 m² +47% | 2025 |
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| 111, Plaistow Lane699 m away | 135 m² | 164 m² | +29 m² +21% | 2025 |
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| 7, Walwyn Avenue485 m away | 59 m² | 88 m² | +29 m² +49% | 2023 |
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| 14, Southlands Road974 m away | 102 m² | 131 m² | +29 m² +28% | 2022 |
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| 51, Rafford Way978 m away | 136 m² | 165 m² | +29 m² +21% | 2019 |
|---|
| 73, Havelock Road676 m away | 83 m² | 112 m² | +29 m² +35% | 2018 |
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| 29, Rochester Avenue508 m away | 126 m² | 155 m² | +29 m² +23% | 2017 |
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| 183, Southlands Road785 m away | 94 m² | 122 m² | +28 m² +30% | 2025 |
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| 62, The Chase788 m away | 111 m² | 139 m² | +28 m² +25% | 2023 |
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| 40, Bourne Road690 m away | 87 m² | 115 m² | +28 m² +32% | 2016 |
|---|
| 1, The Glade301 m away | 80 m² | 108 m² | +28 m² +35% | 2014 |
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| Flat 15, The Laurels, 1, Homefield Road745 m away | 78 m² | 106 m² | +28 m² +36% | 2013 |
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| 42, Bourne Road690 m away | 99 m² | 126 m² | +27 m² +27% | 2024 |
|---|
| 2a, Southlands Grove822 m away | 54 m² | 81 m² | +27 m² +50% | 2021 |
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| 48a, Southlands Road875 m away | 49 m² | 75 m² | +26 m² +53% | 2022 |
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| 9, Murray Avenue666 m away | 80 m² | 106 m² | +26 m² +33% | 2019 |
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| 65, Nightingale Lane0 m away | 88 m² | 113 m² | +25 m² +28% | 2026 |
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| 49, Havelock Road676 m away | 94 m² | 119 m² | +25 m² +27% | 2024 |
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| 138, Murray Avenue770 m away | 156 m² | 181 m² | +25 m² +16% | 2024 |
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| 133, Southlands Road810 m away | 119 m² | 144 m² | +25 m² +21% | 2018 |
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| 131, Southlands Road810 m away | 119 m² | 144 m² | +25 m² +21% | 2018 |
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| 89, Clarence Road427 m away | 147 m² | 172 m² | +25 m² +17% | 2014 |
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| 33, Fashoda Road698 m away | 93 m² | 117 m² | +24 m² +26% | 2025 |
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| 21, Clarence Road704 m away | 123 m² | 147 m² | +24 m² +20% | 2025 |
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| 58, Nightingale Lane29 m away | 118 m² | 142 m² | +24 m² +20% | 2024 |
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| 12, Page Heath Lane461 m away | 67 m² | 91 m² | +24 m² +36% | 2020 |
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| 129, Southlands Road810 m away | 125 m² | 149 m² | +24 m² +19% | 2018 |
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| 151, Southlands Road785 m away | 78 m² | 102 m² | +24 m² +31% | 2014 |
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| Flat 6, Ascot Court, Asprey Place720 m away | 102 m² | 125 m² | +23 m² +23% | 2025 |
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| Flat 4, Cromarty Court, 126 - 128, Widmore Road619 m away | 31 m² | 54 m² | +23 m² +74% | 2023 |
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| 6, Stratford House Avenue755 m away | 128 m² | 151 m² | +23 m² +18% | 2023 |
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| 24, Homefield Road819 m away | 131 m² | 154 m² | +23 m² +18% | 2023 |
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| 28, Widmore Lodge Road231 m away | 105 m² | 128 m² | +23 m² +22% | 2022 |
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| Flat 2, Orchard House, 5, Woodlands Road936 m away | 139 m² | 162 m² | +23 m² +17% | 2021 |
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| 32, Nightingale Lane29 m away | 88 m² | 111 m² | +23 m² +26% | 2020 |
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| 7, Clarence Road704 m away | 95 m² | 118 m² | +23 m² +24% | 2017 |
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| 2, The Pantiles791 m away | 71 m² | 94 m² | +23 m² +32% | 2015 |
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| 163, Homesdale Road240 m away | 74 m² | 97 m² | +23 m² +31% | 2014 |
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| Flat 2, The Chilterns, 148, Murray Avenue770 m away | 58 m² | 81 m² | +23 m² +40% | 2013 |
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| 21, Mornington Avenue408 m away | 90 m² | 112 m² | +22 m² +24% | 2023 |
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| 38, Haywood Road661 m away | 77 m² | 99 m² | +22 m² +29% | 2022 |
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| 43, Cowper Road965 m away | 92 m² | 114 m² | +22 m² +24% | 2022 |
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| 15, Bourne Road642 m away | 80 m² | 102 m² | +22 m² +28% | 2021 |
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| 5, Napier Road815 m away | 80 m² | 102 m² | +22 m² +28% | 2018 |
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| 107, Murray Avenue773 m away | 108 m² | 130 m² | +22 m² +20% | 2017 |
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| Flat 12, Phoenix Apartments, 157, Widmore Road550 m away | 96 m² | 117 m² | +21 m² +22% | 2025 |
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| Flat 29, Gainsborough Court, Homesdale Road857 m away | 48 m² | 69 m² | +21 m² +44% | 2025 |
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| 59, Beechfield Road282 m away | 96 m² | 117 m² | +21 m² +22% | 2024 |
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| 9, Nelson Road790 m away | 100 m² | 121 m² | +21 m² +21% | 2020 |
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| 7a, Homesdale Road878 m away | 64 m² | 85 m² | +21 m² +33% | 2012 |
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| 51, Bourne Road642 m away | 69 m² | 89 m² | +20 m² +29% | 2024 |
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| Swancote House, Westbury Road789 m away | 122 m² | 142 m² | +20 m² +16% | 2022 |
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| Flat 10, 1, Sheridan Place206 m away | 54 m² | 74 m² | +20 m² +37% | 2016 |
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| 9, Godwin Road434 m away | 88 m² | 107 m² | +19 m² +22% | 2026 |
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| Flat 32, Iconia House, 6, Homesdale Road826 m away | 43 m² | 62 m² | +19 m² +44% | 2023 |
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| 33, Liddon Road161 m away | 77 m² | 96 m² | +19 m² +25% | 2020 |
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| Flat 3, Ardenhurst, 26, Southborough Road881 m away | 75 m² | 94 m² | +19 m² +25% | 2018 |
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| 22, Wellington Road881 m away | 77 m² | 96 m² | +19 m² +25% | 2016 |
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| Flat A, 13, Freelands Road920 m away | 51 m² | 70 m² | +19 m² +37% | 2015 |
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| 43, Fashoda Road698 m away | 85 m² | 103 m² | +18 m² +21% | 2026 |
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| 81, Tylney Road155 m away | 62 m² | 80 m² | +18 m² +29% | 2024 |
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| 29, Bickley Crescent800 m away | 101 m² | 119 m² | +18 m² +18% | 2024 |
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| Flat 18, Gainsborough Court, Homesdale Road857 m away | 50 m² | 68 m² | +18 m² +36% | 2024 |
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| 38, Bickley Crescent779 m away | 89 m² | 107 m² | +18 m² +20% | 2022 |
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| 177, Homesdale Road240 m away | 75 m² | 93 m² | +18 m² +24% | 2020 |
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| 15, Beaconsfield Road480 m away | 83 m² | 101 m² | +18 m² +22% | 2020 |
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| Flat 36, The Oasis, 124, Widmore Road660 m away | 47 m² | 65 m² | +18 m² +38% | 2020 |
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| 53, Cowper Road965 m away | 87 m² | 105 m² | +18 m² +21% | 2019 |
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| 38, Widmore Lodge Road231 m away | 85 m² | 102 m² | +17 m² +20% | 2023 |
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| 30b, Upper Park Road953 m away | 105 m² | 122 m² | +17 m² +16% | 2021 |
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| 11, Nightingale Lane283 m away | 106 m² | 123 m² | +17 m² +16% | 2019 |
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| 160, Homesdale Road377 m away | 65 m² | 82 m² | +17 m² +26% | 2019 |
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| 25, Liddon Road161 m away | 91 m² | 108 m² | +17 m² +19% | 2018 |
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| 49a, Homesdale Road636 m away | 62 m² | 79 m² | +17 m² +27% | 2018 |
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| 23, Fashoda Road698 m away | 67 m² | 84 m² | +17 m² +25% | 2017 |
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| 8, Jaffray Road794 m away | 76 m² | 93 m² | +17 m² +22% | 2009 |
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| 35, Elliott Road749 m away | 88 m² | 104 m² | +16 m² +18% | 2026 |
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| Flat 16, Phoenix Apartments, 157, Widmore Road550 m away | 96 m² | 112 m² | +16 m² +17% | 2024 |
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| Flat 1, Hillside, 15, Park Farm Road784 m away | 66 m² | 82 m² | +16 m² +24% | 2022 |
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| 67, Addison Road921 m away | 99 m² | 115 m² | +16 m² +16% | 2022 |
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| 4, Devonshire Square884 m away | 88 m² | 104 m² | +16 m² +18% | 2021 |
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| 19, Ferndale226 m away | 93 m² | 109 m² | +16 m² +17% | 2020 |
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| 2a, Fashoda Road700 m away | 67 m² | 83 m² | +16 m² +24% | 2018 |
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| 11, Pembroke Road138 m away | 88 m² | 104 m² | +16 m² +18% | 2015 |
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| 173, Widmore Road527 m away | 22 m² | 37 m² | +15 m² +68% | 2025 |
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| Flat 8, Forest Lawns, 33, Orchard Road854 m away | 48 m² | 63 m² | +15 m² +31% | 2024 |
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| 53, Godwin Road434 m away | 69 m² | 84 m² | +15 m² +22% | 2023 |
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| Flat 34, The Laurels, 1, Homefield Road745 m away | 55 m² | 70 m² | +15 m² +27% | 2023 |
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| 28, Havelock Road707 m away | 79 m² | 94 m² | +15 m² +19% | 2022 |
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| 14a, Langdon Road889 m away | 49 m² | 64 m² | +15 m² +31% | 2022 |
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| 28, Godwin Road401 m away | 81 m² | 96 m² | +15 m² +19% | 2021 |
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| 224, Homesdale Road276 m away | 81 m² | 96 m² | +15 m² +19% | 2016 |
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