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 3LD
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 |
|---|---|---|---|---|
| 79, Walden Avenue921 m away | 80 m² | 191 m² | +111 m² +139% | 2014 |
| 35, Brownspring Drive410 m away | 81 m² | 184 m² | +103 m² +127% | 2020 |
| 6, Brownspring Drive387 m away | 79 m² | 174 m² | +95 m² +120% | 2021 |
| 195, White Horse Hill773 m away | 113 m² | 206 m² | +93 m² +82% | 2011 |
| 20, Edgebury262 m away | 73 m² | 165 m² | +92 m² +126% | 2026 |
| 12, Mainridge Road427 m away | 75 m² | 165 m² | +90 m² +120% | 2019 |
| 59, Cadwallon Road852 m away | 99 m² | 188 m² | +89 m² +90% | 2024 |
| 90, Green Lane557 m away | 91 m² | 179 m² | +88 m² +97% | 2019 |
| 65, Southwood Road993 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.
| 117 m² |
| 203 m² |
| +86 m² +74% |
| 2019 |
| 22, Ingleby Way858 m away | 107 m² | 192 m² | +85 m² +79% | 2013 |
|---|
| 106, Imperial Way592 m away | 114 m² | 195 m² | +81 m² +71% | 2021 |
|---|
| 93, Montbelle Road262 m away | 96 m² | 177 m² | +81 m² +84% | 2016 |
|---|
| 4, Crouch Croft606 m away | 83 m² | 160 m² | +77 m² +93% | 2021 |
|---|
| 18, Clayfarm Road884 m away | 90 m² | 166 m² | +76 m² +84% | 2019 |
|---|
| 11, Gravelwood Close499 m away | 86 m² | 160 m² | +74 m² +86% | 2025 |
|---|
| 131, White Horse Hill683 m away | 79 m² | 153 m² | +74 m² +94% | 2017 |
|---|
| 7, Gravelwood Close499 m away | 78 m² | 149 m² | +71 m² +91% | 2026 |
|---|
| 109, Domonic Drive168 m away | 80 m² | 151 m² | +71 m² +89% | 2024 |
|---|
| 48, Kingsley Wood Drive875 m away | 99 m² | 170 m² | +71 m² +72% | 2024 |
|---|
| 51, Mainridge Road461 m away | 79 m² | 149 m² | +70 m² +89% | 2025 |
|---|
| 360, Green Lane344 m away | 95 m² | 163 m² | +68 m² +72% | 2013 |
|---|
| Lenvale, Red Hill774 m away | 89 m² | 156 m² | +67 m² +75% | 2023 |
|---|
| 692, Sidcup Road988 m away | 89 m² | 156 m² | +67 m² +75% | 2019 |
|---|
| 165, Domonic Drive158 m away | 92 m² | 157 m² | +65 m² +71% | 2023 |
|---|
| 62, Montbelle Road458 m away | 97 m² | 162 m² | +65 m² +67% | 2023 |
|---|
| 57, Gerda Road931 m away | 89 m² | 152 m² | +63 m² +71% | 2021 |
|---|
| 305, Mottingham Road950 m away | 93 m² | 155 m² | +62 m² +67% | 2025 |
|---|
| 31, Charldane Road601 m away | 101 m² | 162 m² | +61 m² +60% | 2025 |
|---|
| 49, Southwood Road993 m away | 142 m² | 202 m² | +60 m² +42% | 2020 |
|---|
| 5, Hanover Drive440 m away | 98 m² | 156 m² | +58 m² +59% | 2026 |
|---|
| 26, Ingleby Way858 m away | 85 m² | 141 m² | +56 m² +66% | 2017 |
|---|
| 197, Green Lane968 m away | 91 m² | 146 m² | +55 m² +60% | 2025 |
|---|
| 35, Charldane Road601 m away | 114 m² | 169 m² | +55 m² +48% | 2024 |
|---|
| 191, White Horse Hill773 m away | 126 m² | 181 m² | +55 m² +44% | 2018 |
|---|
| 7, Holmdale Road714 m away | 71 m² | 126 m² | +55 m² +77% | 2017 |
|---|
| 4, Woodside Avenue887 m away | 81 m² | 134 m² | +53 m² +65% | 2020 |
|---|
| 6, Lambarde Avenue526 m away | 85 m² | 138 m² | +53 m² +62% | 2014 |
|---|
| 58, Littlemede958 m away | 92 m² | 145 m² | +53 m² +58% | 2014 |
|---|
| 45, Domonic Drive398 m away | 84 m² | 137 m² | +53 m² +63% | 2012 |
|---|
| 11, Farmland Walk493 m away | 92 m² | 143 m² | +51 m² +55% | 2026 |
|---|
| 14, Lydstep Road512 m away | 95 m² | 146 m² | +51 m² +54% | 2021 |
|---|
| 57, Slades Drive449 m away | 65 m² | 116 m² | +51 m² +78% | 2019 |
|---|
| 103, Domonic Drive168 m away | 77 m² | 128 m² | +51 m² +66% | 2015 |
|---|
| 55, Domonic Drive398 m away | 34 m² | 83 m² | +49 m² +144% | 2018 |
|---|
| 38, Brownspring Drive387 m away | 95 m² | 143 m² | +48 m² +51% | 2025 |
|---|
| 91, Domonic Drive168 m away | 84 m² | 131 m² | +47 m² +56% | 2026 |
|---|
| 61, Montbelle Road396 m away | 115 m² | 161 m² | +46 m² +40% | 2022 |
|---|
| 71, Crouch Croft386 m away | 77 m² | 123 m² | +46 m² +60% | 2021 |
|---|
| 322, Green Lane572 m away | 144 m² | 189 m² | +45 m² +31% | 2026 |
|---|
| 152, Green Lane327 m away | 105 m² | 150 m² | +45 m² +43% | 2024 |
|---|
| 7, Barham Close584 m away | 72 m² | 117 m² | +45 m² +63% | 2023 |
|---|
| 59, Gerda Road931 m away | 89 m² | 134 m² | +45 m² +51% | 2020 |
|---|
| 44, Montbelle Road458 m away | 101 m² | 146 m² | +45 m² +45% | 2014 |
|---|
| 43, Edgebury198 m away | 84 m² | 128 m² | +44 m² +52% | 2022 |
|---|
| 75, Greenway432 m away | 78 m² | 122 m² | +44 m² +56% | 2017 |
|---|
| 27, Empress Drive932 m away | 90 m² | 134 m² | +44 m² +49% | 2017 |
|---|
| 74, Domonic Drive310 m away | 84 m² | 127 m² | +43 m² +51% | 2026 |
|---|
| 55, Mainridge Road461 m away | 119 m² | 162 m² | +43 m² +36% | 2017 |
|---|
| 29, Leas Dale677 m away | 86 m² | 129 m² | +43 m² +50% | 2015 |
|---|
| 81, Imperial Way626 m away | 75 m² | 117 m² | +42 m² +56% | 2025 |
|---|
| 6, Invicta Close785 m away | 91 m² | 133 m² | +42 m² +46% | 2021 |
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| 8, Meadow Close638 m away | 91 m² | 133 m² | +42 m² +46% | 2019 |
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| 91, Imperial Way592 m away | 119 m² | 161 m² | +42 m² +35% | 2016 |
|---|
| 94, Green Lane557 m away | 111 m² | 153 m² | +42 m² +38% | 2014 |
|---|
| 5, Belmont Road668 m away | 75 m² | 116 m² | +41 m² +55% | 2025 |
|---|
| 26, Mervyn Avenue823 m away | 92 m² | 133 m² | +41 m² +45% | 2022 |
|---|
| 73, Belmont Lane538 m away | 88 m² | 129 m² | +41 m² +47% | 2021 |
|---|
| 105, Gerda Road823 m away | 86 m² | 127 m² | +41 m² +48% | 2017 |
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| 42, Cadwallon Road811 m away | 95 m² | 136 m² | +41 m² +43% | 2015 |
|---|
| 64, Greenway463 m away | 113 m² | 153 m² | +40 m² +35% | 2026 |
|---|
| 28, The Knole640 m away | 72 m² | 112 m² | +40 m² +56% | 2026 |
|---|
| 67, Edgebury384 m away | 93 m² | 133 m² | +40 m² +43% | 2025 |
|---|
| 38, Charldane Road567 m away | 96 m² | 136 m² | +40 m² +42% | 2018 |
|---|
| 82, Domonic Drive310 m away | 86 m² | 126 m² | +40 m² +47% | 2015 |
|---|
| 416, Green Lane223 m away | 100 m² | 140 m² | +40 m² +40% | 2014 |
|---|
| 35, Green Lane767 m away | 61 m² | 100 m² | +39 m² +64% | 2025 |
|---|
| 93, Edgebury384 m away | 123 m² | 162 m² | +39 m² +32% | 2022 |
|---|
| 90, Woodside Avenue751 m away | 89 m² | 128 m² | +39 m² +44% | 2022 |
|---|
| 22, Felhampton Road598 m away | 96 m² | 135 m² | +39 m² +41% | 2017 |
|---|
| 371, Green Lane203 m away | 77 m² | 116 m² | +39 m² +51% | 2012 |
|---|
| 37, Cranmore Road930 m away | 97 m² | 135 m² | +38 m² +39% | 2022 |
|---|
| 113, Domonic Drive168 m away | 89 m² | 127 m² | +38 m² +43% | 2021 |
|---|
| 796, Sidcup Road689 m away | 110 m² | 148 m² | +38 m² +35% | 2021 |
|---|
| 31, Hever Croft458 m away | 91 m² | 128 m² | +37 m² +41% | 2025 |
|---|
| 86, Woodside Avenue751 m away | 97 m² | 134 m² | +37 m² +38% | 2025 |
|---|
| 376, Green Lane344 m away | 144 m² | 181 m² | +37 m² +26% | 2023 |
|---|
| 57, Crouch Croft386 m away | 79 m² | 116 m² | +37 m² +47% | 2023 |
|---|
| 13, White Horse Hill711 m away | 81 m² | 118 m² | +37 m² +46% | 2019 |
|---|
| 53, Belmont Lane538 m away | 77 m² | 113 m² | +36 m² +47% | 2024 |
|---|
| 13, Belmont Road668 m away | 36 m² | 72 m² | +36 m² +100% | 2010 |
|---|
| 2, Brownspring Drive387 m away | 110 m² | 145 m² | +35 m² +32% | 2026 |
|---|
| 77, Brownspring Drive410 m away | 78 m² | 113 m² | +35 m² +45% | 2026 |
|---|
| 43, Gerda Road931 m away | 80 m² | 115 m² | +35 m² +44% | 2025 |
|---|
| 283, Mottingham Road950 m away | 89 m² | 124 m² | +35 m² +39% | 2021 |
|---|
| 124, Imperial Way592 m away | 76 m² | 111 m² | +35 m² +46% | 2020 |
|---|
| 59, Holmdale Road714 m away | 89 m² | 123 m² | +34 m² +38% | 2025 |
|---|
| 60, Edgebury262 m away | 84 m² | 118 m² | +34 m² +40% | 2024 |
|---|
| 140, William Barefoot Drive765 m away | 91 m² | 125 m² | +34 m² +37% | 2023 |
|---|
| 43, Montbelle Road396 m away | 135 m² | 168 m² | +33 m² +24% | 2026 |
|---|
| 1, Albany Road768 m away | 84 m² | 117 m² | +33 m² +39% | 2025 |
|---|
| 8, Walden Avenue800 m away | 74 m² | 107 m² | +33 m² +45% | 2022 |
|---|
| 15, Buckingham Drive482 m away | 101 m² | 134 m² | +33 m² +33% | 2021 |
|---|
| 81, Parkview Road976 m away | 110 m² | 143 m² | +33 m² +30% | 2020 |
|---|
| 131, Green Lane372 m away | 132 m² | 164 m² | +32 m² +24% | 2024 |
|---|
| 1, Walkden Road599 m away | 119 m² | 151 m² | +32 m² +27% | 2024 |
|---|
| 42, Brownspring Drive387 m away | 117 m² | 149 m² | +32 m² +27% | 2020 |
|---|
| 826, Sidcup Road689 m away | 96 m² | 128 m² | +32 m² +33% | 2018 |
|---|
| 20, Albany Road768 m away | 97 m² | 129 m² | +32 m² +33% | 2018 |
|---|
| 53, Greenway432 m away | 82 m² | 113 m² | +31 m² +38% | 2026 |
|---|
| 171, Green Lane372 m away | 60 m² | 91 m² | +31 m² +52% | 2014 |
|---|
| 63, Green Lane767 m away | 51 m² | 82 m² | +31 m² +61% | 2012 |
|---|
| 59, Westhurst Drive530 m away | 77 m² | 107 m² | +30 m² +39% | 2024 |
|---|
| 11, Toynbec Close285 m away | 133 m² | 163 m² | +30 m² +23% | 2022 |
|---|
| 105, Oakdene Avenue983 m away | 86 m² | 116 m² | +30 m² +35% | 2020 |
|---|
| 127, Brownspring Drive128 m away | 76 m² | 106 m² | +30 m² +39% | 2016 |
|---|
| 80, Woodside Avenue887 m away | 112 m² | 141 m² | +29 m² +26% | 2026 |
|---|
| 27, Woodside Avenue845 m away | 83 m² | 112 m² | +29 m² +35% | 2025 |
|---|
| 3, Empress Drive932 m away | 96 m² | 125 m² | +29 m² +30% | 2023 |
|---|
| 91, Crouch Croft386 m away | 113 m² | 142 m² | +29 m² +26% | 2021 |
|---|
| 6, Shallons Road139 m away | 78 m² | 107 m² | +29 m² +37% | 2017 |
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| 79, Montbelle Road396 m away | 99 m² | 128 m² | +29 m² +29% | 2016 |
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| 115, Southwood Road843 m away | 102 m² | 130 m² | +28 m² +27% | 2026 |
|---|
| 143, William Barefoot Drive760 m away | 87 m² | 115 m² | +28 m² +32% | 2024 |
|---|
| 2, Oakdene Avenue871 m away | 80 m² | 108 m² | +28 m² +35% | 2024 |
|---|
| 25, Hillview Road427 m away | 74 m² | 102 m² | +28 m² +38% | 2022 |
|---|
| 13, Molescroft585 m away | 95 m² | 123 m² | +28 m² +29% | 2022 |
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| 1, Cadwallon Road852 m away | 109 m² | 137 m² | +28 m² +26% | 2022 |
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| 59, Imperial Way626 m away | 80 m² | 108 m² | +28 m² +35% | 2019 |
|---|
| 92, Imperial Way626 m away | 77 m² | 104 m² | +27 m² +35% | 2021 |
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| 98, Domonic Drive310 m away | 91 m² | 117 m² | +26 m² +29% | 2025 |
|---|
| 22, Cadwallon Road811 m away | 89 m² | 115 m² | +26 m² +29% | 2023 |
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| 7, Westhurst Drive530 m away | 91 m² | 117 m² | +26 m² +29% | 2022 |
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| 24, Albany Road768 m away | 77 m² | 103 m² | +26 m² +34% | 2022 |
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| 13a, Oakdene Avenue818 m away | 130 m² | 156 m² | +26 m² +20% | 2022 |
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| 58, Belmont Lane712 m away | 89 m² | 115 m² | +26 m² +29% | 2019 |
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| 39, Biddenden Way678 m away | 89 m² | 115 m² | +26 m² +29% | 2014 |
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| 26, Southold Rise785 m away | 90 m² | 115 m² | +25 m² +28% | 2022 |
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| 34, Albany Road768 m away | 81 m² | 106 m² | +25 m² +31% | 2021 |
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| 91, Edgebury384 m away | 110 m² | 135 m² | +25 m² +23% | 2020 |
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| 13, Greenway574 m away | 82 m² | 106 m² | +24 m² +29% | 2026 |
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| 46, Albany Road736 m away | 72 m² | 96 m² | +24 m² +33% | 2024 |
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| 17, Greenway574 m away | 92 m² | 116 m² | +24 m² +26% | 2023 |
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| 34, Hillview Road480 m away | 74 m² | 98 m² | +24 m² +32% | 2021 |
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| 34, Green Lane929 m away | 91 m² | 115 m² | +24 m² +26% | 2016 |
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| 85, Brownspring Drive410 m away | 140 m² | 163 m² | +23 m² +16% | 2026 |
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| 50, Mainridge Road427 m away | 93 m² | 116 m² | +23 m² +25% | 2026 |
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| 39, Holmdale Road714 m away | 71 m² | 94 m² | +23 m² +32% | 2022 |
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| 16, Holmdale Road741 m away | 90 m² | 113 m² | +23 m² +26% | 2021 |
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| 16, Woodside Avenue887 m away | 87 m² | 110 m² | +23 m² +26% | 2020 |
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| 7, Ingleby Way858 m away | 137 m² | 160 m² | +23 m² +17% | 2018 |
|---|
| 65, White Horse Hill683 m away | 65 m² | 88 m² | +23 m² +35% | 2012 |
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| 70, Holmdale Road741 m away | 76 m² | 98 m² | +22 m² +29% | 2026 |
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| 337, Green Lane220 m away | 98 m² | 120 m² | +22 m² +22% | 2025 |
|---|
| 63, Holmdale Road714 m away | 73 m² | 95 m² | +22 m² +30% | 2025 |
|---|
| 173, Green Lane372 m away | 84 m² | 106 m² | +22 m² +26% | 2024 |
|---|
| 111, Parkview Road976 m away | 49 m² | 71 m² | +22 m² +45% | 2023 |
|---|
| 2, Hanover Drive440 m away | 98 m² | 120 m² | +22 m² +22% | 2022 |
|---|
| 66, Belmont Lane712 m away | 75 m² | 97 m² | +22 m² +29% | 2022 |
|---|
| 37, Westhurst Drive530 m away | 82 m² | 104 m² | +22 m² +27% | 2017 |
|---|
| 48, Albany Road736 m away | 93 m² | 115 m² | +22 m² +24% | 2017 |
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| 166, Domonic Drive158 m away | 98 m² | 120 m² | +22 m² +22% | 2016 |
|---|
| 14, Albany Road768 m away | 90 m² | 112 m² | +22 m² +24% | 2014 |
|---|
| 8, Elmstead Avenue942 m away | 102 m² | 123 m² | +21 m² +21% | 2026 |
|---|
| 109, Brownspring Drive128 m away | 83 m² | 104 m² | +21 m² +25% | 2024 |
|---|
| 66, Albany Road736 m away | 80 m² | 101 m² | +21 m² +26% | 2024 |
|---|
| 34, County Gate844 m away | 113 m² | 134 m² | +21 m² +19% | 2023 |
|---|
| 1, Westhurst Drive530 m away | 91 m² | 112 m² | +21 m² +23% | 2020 |
|---|
| 17, Beechwood Rise345 m away | 108 m² | 129 m² | +21 m² +19% | 2018 |
|---|
| 55, Brownspring Drive410 m away | 77 m² | 98 m² | +21 m² +27% | 2017 |
|---|
| 31, Westhurst Drive530 m away | 102 m² | 123 m² | +21 m² +21% | 2017 |
|---|
| 12, Walkden Road599 m away | 97 m² | 118 m² | +21 m² +22% | 2017 |
|---|
| 68, White Horse Hill644 m away | 73 m² | 94 m² | +21 m² +29% | 2017 |
|---|
| 29, Belmont Lane651 m away | 87 m² | 108 m² | +21 m² +24% | 2016 |
|---|
| 12, Kingsley Wood Drive997 m away | 91 m² | 112 m² | +21 m² +23% | 2016 |
|---|
| 39, Victoria Road792 m away | 60 m² | 80 m² | +20 m² +33% | 2026 |
|---|
| 34, Elmstead Avenue942 m away | 90 m² | 110 m² | +20 m² +22% | 2025 |
|---|
| 15, Oaktree Gardens216 m away | 83 m² | 103 m² | +20 m² +24% | 2024 |
|---|
| 44, Mainridge Road427 m away | 92 m² | 112 m² | +20 m² +22% | 2024 |
|---|
| 38, Holmdale Road741 m away | 77 m² | 97 m² | +20 m² +26% | 2024 |
|---|
| 159, Green Lane372 m away | 80 m² | 100 m² | +20 m² +25% | 2022 |
|---|
| 27, Adelaide Road826 m away | 77 m² | 97 m² | +20 m² +26% | 2020 |
|---|
| 79, Belmont Lane538 m away | 109 m² | 129 m² | +20 m² +18% | 2019 |
|---|
| 23, Slades Drive534 m away | 66 m² | 86 m² | +20 m² +30% | 2015 |
|---|
| 15, Belmont Lane651 m away | 75 m² | 95 m² | +20 m² +27% | 2011 |
|---|
| 56, Slades Drive449 m away | 120 m² | 139 m² | +19 m² +16% | 2026 |
|---|
| 14, Prestbury Square959 m away | 65 m² | 84 m² | +19 m² +29% | 2025 |
|---|
| 25, Albany Road768 m away | 83 m² | 102 m² | +19 m² +23% | 2024 |
|---|
| 31, Adelaide Road826 m away | 71 m² | 90 m² | +19 m² +27% | 2023 |
|---|
| 672, Sidcup Road988 m away | 113 m² | 132 m² | +19 m² +17% | 2022 |
|---|
| 183, White Horse Hill773 m away | 118 m² | 137 m² | +19 m² +16% | 2020 |
|---|
| 69, Great Harry Drive526 m away | 97 m² | 116 m² | +19 m² +20% | 2015 |
|---|
| 66, Holmdale Road741 m away | 89 m² | 107 m² | +18 m² +20% | 2024 |
|---|
| 50, Greenway463 m away | 91 m² | 109 m² | +18 m² +20% | 2023 |
|---|
| 25, Gerda Road931 m away | 108 m² | 126 m² | +18 m² +17% | 2021 |
|---|
| 8, Farmland Walk493 m away | 110 m² | 128 m² | +18 m² +16% | 2020 |
|---|
| 35, White Horse Hill711 m away | 68 m² | 86 m² | +18 m² +26% | 2020 |
|---|
| 151, Green Lane372 m away | 79 m² | 97 m² | +18 m² +23% | 2018 |
|---|
| 34, Slades Drive449 m away | 64 m² | 82 m² | +18 m² +28% | 2017 |
|---|
| 11, Laneside557 m away | 105 m² | 123 m² | +18 m² +17% | 2016 |
|---|
| 99, White Horse Hill683 m away | 33 m² | 51 m² | +18 m² +55% | 2015 |
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