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 SE9 3LW
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 |
|---|---|---|---|---|
| 3, Parkhill Road876 m away | 89 m² | 199 m² | +110 m² +124% | 2020 |
| 35, Brownspring Drive88 m away | 81 m² | 184 m² | +103 m² +127% | 2020 |
| 6, Brownspring Drive87 m away | 79 m² | 174 m² | +95 m² +120% | 2021 |
| 20, Edgebury626 m away | 73 m² | 165 m² | +92 m² +126% | 2026 |
| 12, Mainridge Road898 m away | 75 m² | 165 m² | +90 m² +120% | 2019 |
| 59, Cadwallon Road481 m away | 99 m² | 188 m² | +89 m² +90% | 2024 |
| 90, Green Lane936 m away | 91 m² | 179 m² | +88 m² +97% | 2019 |
| 65, Southwood Road640 m away | 117 m² | 203 m² | +86 m² +74% | 2019 |
| 106, Imperial Way169 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.
| 114 m² |
| 195 m² |
| +81 m² +71% |
| 2021 |
| 93, Montbelle Road382 m away | 96 m² | 177 m² | +81 m² +84% | 2016 |
|---|
| 28, Blanmerle Road946 m away | 81 m² | 158 m² | +77 m² +95% | 2022 |
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| 4, Crouch Croft661 m away | 83 m² | 160 m² | +77 m² +93% | 2021 |
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| 18, Clayfarm Road419 m away | 90 m² | 166 m² | +76 m² +84% | 2019 |
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| 11, Gravelwood Close122 m away | 86 m² | 160 m² | +74 m² +86% | 2025 |
|---|
| 36, Telford Road663 m away | 93 m² | 165 m² | +72 m² +77% | 2022 |
|---|
| 7, Gravelwood Close122 m away | 78 m² | 149 m² | +71 m² +91% | 2026 |
|---|
| 109, Domonic Drive342 m away | 80 m² | 151 m² | +71 m² +89% | 2024 |
|---|
| 51, Mainridge Road930 m away | 79 m² | 149 m² | +70 m² +89% | 2025 |
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| 24, Marechal Niel Avenue819 m away | 79 m² | 149 m² | +70 m² +89% | 2023 |
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| 6, Westbrooke Road948 m away | 79 m² | 147 m² | +68 m² +86% | 2024 |
|---|
| 360, Green Lane561 m away | 95 m² | 163 m² | +68 m² +72% | 2013 |
|---|
| 692, Sidcup Road938 m away | 89 m² | 156 m² | +67 m² +75% | 2019 |
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| 321, Main Road721 m away | 64 m² | 131 m² | +67 m² +105% | 2016 |
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| 62, Montbelle Road237 m away | 97 m² | 162 m² | +65 m² +67% | 2023 |
|---|
| 165, Domonic Drive629 m away | 92 m² | 157 m² | +65 m² +71% | 2023 |
|---|
| 57, Gerda Road541 m away | 89 m² | 152 m² | +63 m² +71% | 2021 |
|---|
| 31, Charldane Road399 m away | 101 m² | 162 m² | +61 m² +60% | 2025 |
|---|
| 49, Southwood Road640 m away | 142 m² | 202 m² | +60 m² +42% | 2020 |
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| 377a, Footscray Road880 m away | 63 m² | 122 m² | +59 m² +94% | 2024 |
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| 5, Hanover Drive698 m away | 98 m² | 156 m² | +58 m² +59% | 2026 |
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| 21, Frensham Road724 m away | 96 m² | 154 m² | +58 m² +60% | 2023 |
|---|
| 197, Green Lane828 m away | 91 m² | 146 m² | +55 m² +60% | 2025 |
|---|
| 35, Charldane Road399 m away | 114 m² | 169 m² | +55 m² +48% | 2024 |
|---|
| 7, Holmdale Road988 m away | 71 m² | 126 m² | +55 m² +77% | 2017 |
|---|
| 117, Harland Avenue710 m away | 110 m² | 164 m² | +54 m² +49% | 2017 |
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| 6, Lambarde Avenue964 m away | 85 m² | 138 m² | +53 m² +62% | 2014 |
|---|
| 45, Domonic Drive83 m away | 84 m² | 137 m² | +53 m² +63% | 2012 |
|---|
| 11, Farmland Walk943 m away | 92 m² | 143 m² | +51 m² +55% | 2026 |
|---|
| 14, Lydstep Road983 m away | 95 m² | 146 m² | +51 m² +54% | 2021 |
|---|
| 57, Slades Drive187 m away | 65 m² | 116 m² | +51 m² +78% | 2019 |
|---|
| 103, Domonic Drive342 m away | 77 m² | 128 m² | +51 m² +66% | 2015 |
|---|
| 20, Woodchurch Close917 m away | 56 m² | 106 m² | +50 m² +89% | 2026 |
|---|
| 50, Telford Road663 m away | 95 m² | 145 m² | +50 m² +53% | 2021 |
|---|
| 671, Sidcup Road978 m away | 103 m² | 152 m² | +49 m² +48% | 2022 |
|---|
| 55, Domonic Drive83 m away | 34 m² | 83 m² | +49 m² +144% | 2018 |
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| 84, Longlands Park Crescent898 m away | 85 m² | 134 m² | +49 m² +58% | 2016 |
|---|
| 4, Croft Way959 m away | 50 m² | 99 m² | +49 m² +98% | 2014 |
|---|
| 38, Brownspring Drive87 m away | 95 m² | 143 m² | +48 m² +51% | 2025 |
|---|
| 91, Domonic Drive342 m away | 84 m² | 131 m² | +47 m² +56% | 2026 |
|---|
| 62, Gerda Road412 m away | 106 m² | 153 m² | +47 m² +44% | 2026 |
|---|
| 61, Montbelle Road285 m away | 115 m² | 161 m² | +46 m² +40% | 2022 |
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| 71, Crouch Croft628 m away | 77 m² | 123 m² | +46 m² +60% | 2021 |
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| 322, Green Lane593 m away | 144 m² | 189 m² | +45 m² +31% | 2026 |
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| 152, Green Lane777 m away | 105 m² | 150 m² | +45 m² +43% | 2024 |
|---|
| 59, Gerda Road541 m away | 89 m² | 134 m² | +45 m² +51% | 2020 |
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| 44, Montbelle Road237 m away | 101 m² | 146 m² | +45 m² +45% | 2014 |
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| 43, Edgebury586 m away | 84 m² | 128 m² | +44 m² +52% | 2022 |
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| 75, Greenway897 m away | 78 m² | 122 m² | +44 m² +56% | 2017 |
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| 74, Domonic Drive200 m away | 84 m² | 127 m² | +43 m² +51% | 2026 |
|---|
| 55, Mainridge Road930 m away | 119 m² | 162 m² | +43 m² +36% | 2017 |
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| 29, Leas Dale871 m away | 86 m² | 129 m² | +43 m² +50% | 2015 |
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| 81, Imperial Way366 m away | 75 m² | 117 m² | +42 m² +56% | 2025 |
|---|
| 34, Westbrooke Road948 m away | 91 m² | 133 m² | +42 m² +46% | 2021 |
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| 91, Imperial Way169 m away | 119 m² | 161 m² | +42 m² +35% | 2016 |
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| 94, Green Lane936 m away | 111 m² | 153 m² | +42 m² +38% | 2014 |
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| 26, Mervyn Avenue352 m away | 92 m² | 133 m² | +41 m² +45% | 2022 |
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| 73, Belmont Lane781 m away | 88 m² | 129 m² | +41 m² +47% | 2021 |
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| 105, Gerda Road362 m away | 86 m² | 127 m² | +41 m² +48% | 2017 |
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| 42, Cadwallon Road447 m away | 95 m² | 136 m² | +41 m² +43% | 2015 |
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| 6, Agaton Road636 m away | 101 m² | 141 m² | +40 m² +40% | 2026 |
|---|
| 64, Greenway924 m away | 113 m² | 153 m² | +40 m² +35% | 2026 |
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| 67, Edgebury624 m away | 93 m² | 133 m² | +40 m² +43% | 2025 |
|---|
| 38, Charldane Road379 m away | 96 m² | 136 m² | +40 m² +42% | 2018 |
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| 82, Domonic Drive200 m away | 86 m² | 126 m² | +40 m² +47% | 2015 |
|---|
| 416, Green Lane636 m away | 100 m² | 140 m² | +40 m² +40% | 2014 |
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| 15, Avery Hill Road850 m away | 59 m² | 98 m² | +39 m² +66% | 2023 |
|---|
| 93, Edgebury624 m away | 123 m² | 162 m² | +39 m² +32% | 2022 |
|---|
| 90, Woodside Avenue933 m away | 89 m² | 128 m² | +39 m² +44% | 2022 |
|---|
| 22, Felhampton Road521 m away | 96 m² | 135 m² | +39 m² +41% | 2017 |
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| 371, Green Lane670 m away | 77 m² | 116 m² | +39 m² +51% | 2012 |
|---|
| 54, Telford Road663 m away | 91 m² | 129 m² | +38 m² +42% | 2022 |
|---|
| 113, Domonic Drive342 m away | 89 m² | 127 m² | +38 m² +43% | 2021 |
|---|
| 796, Sidcup Road502 m away | 110 m² | 148 m² | +38 m² +35% | 2021 |
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| 31, Hever Croft918 m away | 91 m² | 128 m² | +37 m² +41% | 2025 |
|---|
| 86, Woodside Avenue933 m away | 97 m² | 134 m² | +37 m² +38% | 2025 |
|---|
| 376, Green Lane561 m away | 144 m² | 181 m² | +37 m² +26% | 2023 |
|---|
| 57, Crouch Croft628 m away | 79 m² | 116 m² | +37 m² +47% | 2023 |
|---|
| 6, Dulverton Road833 m away | 94 m² | 131 m² | +37 m² +39% | 2023 |
|---|
| 8, Brentwood Close1000 m away | 36 m² | 73 m² | +37 m² +103% | 2022 |
|---|
| 32, Parkview Road852 m away | 85 m² | 122 m² | +37 m² +44% | 2019 |
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| 53, Belmont Lane781 m away | 77 m² | 113 m² | +36 m² +47% | 2024 |
|---|
| 2, Brownspring Drive87 m away | 110 m² | 145 m² | +35 m² +32% | 2026 |
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| 77, Brownspring Drive88 m away | 78 m² | 113 m² | +35 m² +45% | 2026 |
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| 43, Gerda Road541 m away | 80 m² | 115 m² | +35 m² +44% | 2025 |
|---|
| 8, Bercta Road634 m away | 148 m² | 183 m² | +35 m² +24% | 2021 |
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| 124, Imperial Way169 m away | 76 m² | 111 m² | +35 m² +46% | 2020 |
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| 59, Holmdale Road988 m away | 89 m² | 123 m² | +34 m² +38% | 2025 |
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| 60, Edgebury626 m away | 84 m² | 118 m² | +34 m² +40% | 2024 |
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| 689, Sidcup Road978 m away | 122 m² | 156 m² | +34 m² +28% | 2023 |
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| 438, Footscray Road621 m away | 101 m² | 135 m² | +34 m² +34% | 2020 |
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| 43, Montbelle Road285 m away | 135 m² | 168 m² | +33 m² +24% | 2026 |
|---|
| 15, Buckingham Drive766 m away | 101 m² | 134 m² | +33 m² +33% | 2021 |
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| 81, Parkview Road767 m away | 110 m² | 143 m² | +33 m² +30% | 2020 |
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| 41, Marechal Niel Avenue779 m away | 76 m² | 109 m² | +33 m² +43% | 2017 |
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| 131, Green Lane826 m away | 132 m² | 164 m² | +32 m² +24% | 2024 |
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| 42, Brownspring Drive87 m away | 117 m² | 149 m² | +32 m² +27% | 2020 |
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| 826, Sidcup Road502 m away | 96 m² | 128 m² | +32 m² +33% | 2018 |
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| 15, Brentwood Close1000 m away | 72 m² | 104 m² | +32 m² +44% | 2015 |
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| 47, Frensham Road724 m away | 98 m² | 129 m² | +31 m² +32% | 2026 |
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| 53, Greenway897 m away | 82 m² | 113 m² | +31 m² +38% | 2026 |
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| 402a, Footscray Road621 m away | 63 m² | 94 m² | +31 m² +49% | 2024 |
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| 440, Footscray Road621 m away | 104 m² | 135 m² | +31 m² +30% | 2020 |
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| 59, Westhurst Drive878 m away | 77 m² | 107 m² | +30 m² +39% | 2024 |
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| 11, Toynbec Close675 m away | 133 m² | 163 m² | +30 m² +23% | 2022 |
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| 127, Brownspring Drive354 m away | 76 m² | 106 m² | +30 m² +39% | 2016 |
|---|
| 91, Crouch Croft628 m away | 113 m² | 142 m² | +29 m² +26% | 2021 |
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| 6, Shallons Road553 m away | 78 m² | 107 m² | +29 m² +37% | 2017 |
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| 79, Montbelle Road285 m away | 99 m² | 128 m² | +29 m² +29% | 2016 |
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| 115, Southwood Road640 m away | 102 m² | 130 m² | +28 m² +27% | 2026 |
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| 13, Molescroft123 m away | 95 m² | 123 m² | +28 m² +29% | 2022 |
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| 1, Cadwallon Road481 m away | 109 m² | 137 m² | +28 m² +26% | 2022 |
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| 25, Hillview Road899 m away | 74 m² | 102 m² | +28 m² +38% | 2022 |
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| 59, Imperial Way366 m away | 80 m² | 108 m² | +28 m² +35% | 2019 |
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| 35, Agaton Road605 m away | 109 m² | 137 m² | +28 m² +26% | 2016 |
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| 6a, Parkview Road852 m away | 60 m² | 87 m² | +27 m² +45% | 2024 |
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| 53, Merchland Road924 m away | 79 m² | 106 m² | +27 m² +34% | 2024 |
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| 92, Imperial Way366 m away | 77 m² | 104 m² | +27 m² +35% | 2021 |
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| 98, Domonic Drive200 m away | 91 m² | 117 m² | +26 m² +29% | 2025 |
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| 22, Cadwallon Road447 m away | 89 m² | 115 m² | +26 m² +29% | 2023 |
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| 7, Westhurst Drive878 m away | 91 m² | 117 m² | +26 m² +29% | 2022 |
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| 2a, Dulverton Road833 m away | 119 m² | 145 m² | +26 m² +22% | 2021 |
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| 29, Woodchurch Close917 m away | 51 m² | 77 m² | +26 m² +51% | 2015 |
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| 4, Keightley Drive1000 m away | 77 m² | 103 m² | +26 m² +34% | 2014 |
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| 91, Edgebury624 m away | 110 m² | 135 m² | +25 m² +23% | 2020 |
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| 46, Westbrooke Road948 m away | 95 m² | 119 m² | +24 m² +25% | 2022 |
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| 34, Hillview Road950 m away | 74 m² | 98 m² | +24 m² +32% | 2021 |
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| 85, Brownspring Drive88 m away | 140 m² | 163 m² | +23 m² +16% | 2026 |
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| 50, Mainridge Road898 m away | 93 m² | 116 m² | +23 m² +25% | 2026 |
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| 41, Reventlow Road956 m away | 78 m² | 101 m² | +23 m² +29% | 2026 |
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| 39, Holmdale Road988 m away | 71 m² | 94 m² | +23 m² +32% | 2022 |
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| 16, Holmdale Road999 m away | 90 m² | 113 m² | +23 m² +26% | 2021 |
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| 70, Holmdale Road999 m away | 76 m² | 98 m² | +22 m² +29% | 2026 |
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| 337, Green Lane542 m away | 98 m² | 120 m² | +22 m² +22% | 2025 |
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| 63, Holmdale Road988 m away | 73 m² | 95 m² | +22 m² +30% | 2025 |
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| 173, Green Lane826 m away | 84 m² | 106 m² | +22 m² +26% | 2024 |
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| 111, Parkview Road767 m away | 49 m² | 71 m² | +22 m² +45% | 2023 |
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| 2, Hanover Drive698 m away | 98 m² | 120 m² | +22 m² +22% | 2022 |
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| 37, Westhurst Drive878 m away | 82 m² | 104 m² | +22 m² +27% | 2017 |
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| 166, Domonic Drive629 m away | 98 m² | 120 m² | +22 m² +22% | 2016 |
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| 28, Stanley Close992 m away | 92 m² | 113 m² | +21 m² +23% | 2025 |
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| 109, Brownspring Drive354 m away | 83 m² | 104 m² | +21 m² +25% | 2024 |
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| 34, County Gate379 m away | 113 m² | 134 m² | +21 m² +19% | 2023 |
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| 1, Westhurst Drive878 m away | 91 m² | 112 m² | +21 m² +23% | 2020 |
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| 25, Reventlow Road956 m away | 46 m² | 67 m² | +21 m² +46% | 2019 |
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| 17, Beechwood Rise740 m away | 108 m² | 129 m² | +21 m² +19% | 2018 |
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| 55, Brownspring Drive88 m away | 77 m² | 98 m² | +21 m² +27% | 2017 |
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| 31, Westhurst Drive878 m away | 102 m² | 123 m² | +21 m² +21% | 2017 |
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| 29, Belmont Lane962 m away | 87 m² | 108 m² | +21 m² +24% | 2016 |
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| 33, Westbrooke Road948 m away | 96 m² | 117 m² | +21 m² +22% | 2012 |
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| 15, Oaktree Gardens434 m away | 83 m² | 103 m² | +20 m² +24% | 2024 |
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| 44, Mainridge Road898 m away | 92 m² | 112 m² | +20 m² +22% | 2024 |
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| 38, Holmdale Road999 m away | 77 m² | 97 m² | +20 m² +26% | 2024 |
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| 159, Green Lane826 m away | 80 m² | 100 m² | +20 m² +25% | 2022 |
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| 135, Harland Avenue710 m away | 77 m² | 97 m² | +20 m² +26% | 2021 |
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| 79, Belmont Lane781 m away | 109 m² | 129 m² | +20 m² +18% | 2019 |
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| 53, Blanmerle Road921 m away | 79 m² | 99 m² | +20 m² +25% | 2018 |
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| 23, Slades Drive331 m away | 66 m² | 86 m² | +20 m² +30% | 2015 |
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| 15, Belmont Lane962 m away | 75 m² | 95 m² | +20 m² +27% | 2011 |
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| 56, Slades Drive187 m away | 120 m² | 139 m² | +19 m² +16% | 2026 |
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| 672, Sidcup Road938 m away | 113 m² | 132 m² | +19 m² +17% | 2022 |
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| 69, Great Harry Drive849 m away | 97 m² | 116 m² | +19 m² +20% | 2015 |
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| 66, Holmdale Road999 m away | 89 m² | 107 m² | +18 m² +20% | 2024 |
|---|
| 50, Greenway924 m away | 91 m² | 109 m² | +18 m² +20% | 2023 |
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| 25, Gerda Road541 m away | 108 m² | 126 m² | +18 m² +17% | 2021 |
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| 8, Farmland Walk943 m away | 110 m² | 128 m² | +18 m² +16% | 2020 |
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| 151, Green Lane826 m away | 79 m² | 97 m² | +18 m² +23% | 2018 |
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| 34, Slades Drive187 m away | 64 m² | 82 m² | +18 m² +28% | 2017 |
|---|
| 11, Laneside870 m away | 105 m² | 123 m² | +18 m² +17% | 2016 |
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| 15, Woodchurch Close917 m away | 58 m² | 76 m² | +18 m² +31% | 2015 |
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| 50, Larchwood Road460 m away | 78 m² | 96 m² | +18 m² +23% | 2011 |
|---|
| 106, Edgehill Road327 m away | 57 m² | 74 m² | +17 m² +30% | 2025 |
|---|
| 23, Cadwallon Road481 m away | 91 m² | 108 m² | +17 m² +19% | 2022 |
|---|
| 27, Marechal Niel Avenue779 m away | 89 m² | 106 m² | +17 m² +19% | 2021 |
|---|
| 9, Brentwood Close1000 m away | 90 m² | 107 m² | +17 m² +19% | 2021 |
|---|
| 20, Adderley Gardens849 m away | 95 m² | 112 m² | +17 m² +18% | 2019 |
|---|
| 44, Hillview Road950 m away | 56 m² | 73 m² | +17 m² +30% | 2016 |
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| 126, Imperial Way169 m away | 75 m² | 91 m² | +16 m² +21% | 2025 |
|---|
| 40, Lannoy Road997 m away | 60 m² | 76 m² | +16 m² +27% | 2022 |
|---|
| 23, Brooklands Avenue826 m away | 76 m² | 92 m² | +16 m² +21% | 2017 |
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| 31, Woodchurch Close917 m away | 57 m² | 73 m² | +16 m² +28% | 2015 |
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| 5, Brownspring Drive88 m away | 87 m² | 102 m² | +15 m² +17% | 2026 |
|---|
| 53, Jason Walk958 m away | 60 m² | 75 m² | +15 m² +25% | 2025 |
|---|
| Flat 1, 79, Southwood Road617 m away | 66 m² | 81 m² | +15 m² +23% | 2021 |
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| 46, Mainridge Road898 m away | 81 m² | 96 m² | +15 m² +19% | 2019 |
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| 472a, Footscray Road466 m away | 53 m² | 68 m² | +15 m² +28% | 2014 |
|---|
| 59, Keightley Drive994 m away | 93 m² | 108 m² | +15 m² +16% | 2014 |
|---|
| 34, Imperial Way467 m away | 80 m² | 95 m² | +15 m² +19% | 2011 |
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