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 3EJ
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 |
|---|---|---|---|---|
| 212, Court Road709 m away | 151 m² | 350 m² | +199 m² +132% | 2026 |
| 79, Walden Avenue829 m away | 80 m² | 191 m² | +111 m² +139% | 2014 |
| 209, Court Road687 m away | 138 m² | 244 m² | +106 m² +77% | 2015 |
| 112, Beaconsfield Road660 m away | 105 m² | 206 m² | +101 m² +96% | 2021 |
| 19, Leysdown Road537 m away | 95 m² | 193 m² | +98 m² +103% | 2021 |
| 195, White Horse Hill773 m away | 113 m² | 206 m² | +93 m² +82% | 2011 |
| 615, Sidcup Road575 m away | 90 m² | 175 m² | +85 m² +94% | 2017 |
| 12, Crossmead713 m away | 98 m² | 181 m² | +83 m² +85% | 2022 |
| 56, Beaconsfield Road665 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.
| 101 m² |
| 183 m² |
| +82 m² +81% |
| 2024 |
| 93, Montbelle Road920 m away | 96 m² | 177 m² | +81 m² +84% | 2016 |
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| 35, Hartsmead Road539 m away | 141 m² | 221 m² | +80 m² +57% | 2019 |
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| 4, Crouch Croft604 m away | 83 m² | 160 m² | +77 m² +93% | 2021 |
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| 509, Sidcup Road810 m away | 65 m² | 141 m² | +76 m² +117% | 2022 |
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| 20, Lulworth Road781 m away | 83 m² | 159 m² | +76 m² +92% | 2019 |
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| 29, Lavidge Road363 m away | 109 m² | 184 m² | +75 m² +69% | 2024 |
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| 11, Lulworth Road781 m away | 89 m² | 161 m² | +72 m² +81% | 2022 |
|---|
| 48, Kingsley Wood Drive219 m away | 99 m² | 170 m² | +71 m² +72% | 2024 |
|---|
| 233, Beaconsfield Road953 m away | 65 m² | 135 m² | +70 m² +108% | 2020 |
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| 54, Widecombe Road513 m away | 68 m² | 137 m² | +69 m² +101% | 2024 |
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| 360, Green Lane751 m away | 95 m² | 163 m² | +68 m² +72% | 2013 |
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| 692, Sidcup Road573 m away | 89 m² | 156 m² | +67 m² +75% | 2019 |
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| 178, Beaconsfield Road765 m away | 64 m² | 129 m² | +65 m² +102% | 2019 |
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| 137, Mottingham Road464 m away | 109 m² | 172 m² | +63 m² +58% | 2022 |
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| 305, Mottingham Road373 m away | 93 m² | 155 m² | +62 m² +67% | 2025 |
|---|
| 31, Charldane Road936 m away | 101 m² | 162 m² | +61 m² +60% | 2025 |
|---|
| 23, Chapel Farm Road367 m away | 88 m² | 148 m² | +60 m² +68% | 2023 |
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| 45, Chapel Farm Road192 m away | 112 m² | 168 m² | +56 m² +50% | 2025 |
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| 197, Green Lane757 m away | 91 m² | 146 m² | +55 m² +60% | 2025 |
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| 35, Charldane Road936 m away | 114 m² | 169 m² | +55 m² +48% | 2024 |
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| 192, Elmstead Lane808 m away | 106 m² | 161 m² | +55 m² +52% | 2023 |
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| 191, White Horse Hill773 m away | 126 m² | 181 m² | +55 m² +44% | 2018 |
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| 11, Porcupine Close600 m away | 91 m² | 145 m² | +54 m² +59% | 2023 |
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| 83, Framlingham Crescent625 m away | 71 m² | 124 m² | +53 m² +75% | 2026 |
|---|
| 58, Littlemede139 m away | 92 m² | 145 m² | +53 m² +58% | 2014 |
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| 6, Lambarde Avenue826 m away | 85 m² | 138 m² | +53 m² +62% | 2014 |
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| 645, Sidcup Road575 m away | 137 m² | 189 m² | +52 m² +38% | 2020 |
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| 83, Chapel Farm Road192 m away | 133 m² | 184 m² | +51 m² +38% | 2016 |
|---|
| 671, Sidcup Road617 m away | 103 m² | 152 m² | +49 m² +48% | 2022 |
|---|
| 558, Sidcup Road618 m away | 100 m² | 147 m² | +47 m² +47% | 2026 |
|---|
| Fairy Hall Cottage, 12, Court Farm Road866 m away | 90 m² | 137 m² | +47 m² +52% | 2017 |
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| 61, Montbelle Road974 m away | 115 m² | 161 m² | +46 m² +40% | 2022 |
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| 71, Crouch Croft695 m away | 77 m² | 123 m² | +46 m² +60% | 2021 |
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| 140, Dunkery Road771 m away | 73 m² | 119 m² | +46 m² +63% | 2018 |
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| 322, Green Lane675 m away | 144 m² | 189 m² | +45 m² +31% | 2026 |
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| 22, Bowmead399 m away | 123 m² | 168 m² | +45 m² +37% | 2023 |
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| 221, Court Road687 m away | 165 m² | 208 m² | +43 m² +26% | 2021 |
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| 180, Elmstead Lane808 m away | 84 m² | 127 m² | +43 m² +51% | 2021 |
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| 266, Dunkery Road474 m away | 62 m² | 105 m² | +43 m² +69% | 2016 |
|---|
| 29, Leas Dale404 m away | 86 m² | 129 m² | +43 m² +50% | 2015 |
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| 67a, Mottingham Road810 m away | 137 m² | 179 m² | +42 m² +31% | 2025 |
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| 38b, Mottingham Road807 m away | 58 m² | 100 m² | +42 m² +72% | 2018 |
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| 155, Mottingham Road464 m away | 98 m² | 139 m² | +41 m² +42% | 2025 |
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| 28, The Knole752 m away | 72 m² | 112 m² | +40 m² +56% | 2026 |
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| 236, Court Road700 m away | 152 m² | 192 m² | +40 m² +26% | 2022 |
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| 4, Court Farm Road934 m away | 218 m² | 258 m² | +40 m² +18% | 2019 |
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| 38, Charldane Road933 m away | 96 m² | 136 m² | +40 m² +42% | 2018 |
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| 20, Beaconsfield Road665 m away | 93 m² | 133 m² | +40 m² +43% | 2015 |
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| 416, Green Lane883 m away | 100 m² | 140 m² | +40 m² +40% | 2014 |
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| 1, Elmhurst Road711 m away | 91 m² | 130 m² | +39 m² +43% | 2025 |
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| 22, Felhampton Road776 m away | 96 m² | 135 m² | +39 m² +41% | 2017 |
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| 17, Hartsmead Road539 m away | 108 m² | 146 m² | +38 m² +35% | 2025 |
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| 56, Steyning Grove739 m away | 93 m² | 131 m² | +38 m² +41% | 2022 |
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| 37, Cranmore Road962 m away | 97 m² | 135 m² | +38 m² +39% | 2022 |
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| 796, Sidcup Road884 m away | 110 m² | 148 m² | +38 m² +35% | 2021 |
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| 31, Hever Croft934 m away | 91 m² | 128 m² | +37 m² +41% | 2025 |
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| 226, Court Road709 m away | 112 m² | 149 m² | +37 m² +33% | 2024 |
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| 57, Crouch Croft695 m away | 79 m² | 116 m² | +37 m² +47% | 2023 |
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| 376, Green Lane751 m away | 144 m² | 181 m² | +37 m² +26% | 2023 |
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| 32, Parkview Road871 m away | 85 m² | 122 m² | +37 m² +44% | 2019 |
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| 2, Leysdown Road597 m away | 143 m² | 179 m² | +36 m² +25% | 2025 |
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| 163, Framlingham Crescent940 m away | 105 m² | 141 m² | +36 m² +34% | 2024 |
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| 5, Clarence Road631 m away | 71 m² | 106 m² | +35 m² +49% | 2025 |
|---|
| 283, Mottingham Road373 m away | 89 m² | 124 m² | +35 m² +39% | 2021 |
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| 63, Leysdown Road495 m away | 102 m² | 137 m² | +35 m² +34% | 2021 |
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| 140, William Barefoot Drive507 m away | 91 m² | 125 m² | +34 m² +37% | 2023 |
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| 689, Sidcup Road617 m away | 122 m² | 156 m² | +34 m² +28% | 2023 |
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| 43, Montbelle Road974 m away | 135 m² | 168 m² | +33 m² +24% | 2026 |
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| 8, Walden Avenue933 m away | 74 m² | 107 m² | +33 m² +45% | 2022 |
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| 81, Parkview Road893 m away | 110 m² | 143 m² | +33 m² +30% | 2020 |
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| 39, Elmhurst Road711 m away | 115 m² | 147 m² | +32 m² +28% | 2025 |
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| 826, Sidcup Road884 m away | 96 m² | 128 m² | +32 m² +33% | 2018 |
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| 55, Leysdown Road495 m away | 120 m² | 152 m² | +32 m² +27% | 2017 |
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| 24, St Keverne Road675 m away | 68 m² | 100 m² | +32 m² +47% | 2016 |
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| 245, Beaconsfield Road953 m away | 67 m² | 99 m² | +32 m² +48% | 2015 |
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| 270, Court Road700 m away | 77 m² | 108 m² | +31 m² +40% | 2021 |
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| 18, The Underwood148 m away | 92 m² | 123 m² | +31 m² +34% | 2019 |
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| 75a, Mottingham Road810 m away | 78 m² | 109 m² | +31 m² +40% | 2016 |
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| 11, Clarence Road631 m away | 81 m² | 111 m² | +30 m² +37% | 2018 |
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| 91, Crouch Croft695 m away | 113 m² | 142 m² | +29 m² +26% | 2021 |
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| 6, Shallons Road943 m away | 78 m² | 107 m² | +29 m² +37% | 2017 |
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| 79, Montbelle Road974 m away | 99 m² | 128 m² | +29 m² +29% | 2016 |
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| 115, Southwood Road881 m away | 102 m² | 130 m² | +28 m² +27% | 2026 |
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| 38, Wynford Way0 m away | 85 m² | 113 m² | +28 m² +33% | 2025 |
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| 455, Sidcup Road962 m away | 100 m² | 128 m² | +28 m² +28% | 2025 |
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| 143, William Barefoot Drive558 m away | 87 m² | 115 m² | +28 m² +32% | 2024 |
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| 3, Nunnington Close404 m away | 92 m² | 120 m² | +28 m² +30% | 2022 |
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| 124, Mottingham Road538 m away | 168 m² | 196 m² | +28 m² +17% | 2021 |
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| 47, Woodcroft36 m away | 101 m² | 129 m² | +28 m² +28% | 2014 |
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| 72, St Keverne Road908 m away | 80 m² | 108 m² | +28 m² +35% | 2014 |
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| 1, Offenham Road578 m away | 73 m² | 100 m² | +27 m² +37% | 2026 |
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| 113, Framlingham Crescent816 m away | 69 m² | 96 m² | +27 m² +39% | 2024 |
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| 6a, Parkview Road871 m away | 60 m² | 87 m² | +27 m² +45% | 2024 |
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| 35, Chapel Farm Road367 m away | 106 m² | 133 m² | +27 m² +25% | 2015 |
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| 193, Mottingham Road327 m away | 66 m² | 92 m² | +26 m² +39% | 2026 |
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| 287, Dunkery Road441 m away | 61 m² | 87 m² | +26 m² +43% | 2022 |
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| 4, Ravenscroft Crescent329 m away | 55 m² | 81 m² | +26 m² +47% | 2021 |
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| 5, Portland Crescent805 m away | 76 m² | 102 m² | +26 m² +34% | 2021 |
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| 311, Dunkery Road441 m away | 65 m² | 91 m² | +26 m² +40% | 2014 |
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| 39, Biddenden Way621 m away | 89 m² | 115 m² | +26 m² +29% | 2014 |
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| 219, Court Road687 m away | 135 m² | 161 m² | +26 m² +19% | 2011 |
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| 26, Southold Rise440 m away | 90 m² | 115 m² | +25 m² +28% | 2022 |
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| 130, Ravensworth Road710 m away | 66 m² | 91 m² | +25 m² +38% | 2020 |
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| 29, Crossmead742 m away | 76 m² | 101 m² | +25 m² +33% | 2014 |
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| 62a, Kimmeridge Road824 m away | 98 m² | 123 m² | +25 m² +26% | 2010 |
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| 36, Dittisham Road994 m away | 35 m² | 60 m² | +25 m² +71% | 2009 |
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| 128, Castlecombe Road977 m away | 66 m² | 90 m² | +24 m² +36% | 2026 |
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| 51b, West Park849 m away | 61 m² | 84 m² | +23 m² +38% | 2024 |
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| 17, Clarence Road631 m away | 89 m² | 112 m² | +23 m² +26% | 2019 |
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| 35, Albert Road495 m away | 81 m² | 104 m² | +23 m² +28% | 2014 |
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| 337, Green Lane856 m away | 98 m² | 120 m² | +22 m² +22% | 2025 |
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| 111, Parkview Road893 m away | 49 m² | 71 m² | +22 m² +45% | 2023 |
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| 206, Mottingham Road261 m away | 76 m² | 97 m² | +21 m² +28% | 2021 |
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| 12, Kingsley Wood Drive258 m away | 91 m² | 112 m² | +21 m² +23% | 2016 |
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| 100, Chapel Farm Road257 m away | 113 m² | 134 m² | +21 m² +19% | 2012 |
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| 15, Oaktree Gardens907 m away | 83 m² | 103 m² | +20 m² +24% | 2024 |
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| 27, Luxfield Road935 m away | 101 m² | 121 m² | +20 m² +20% | 2024 |
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| 241, Dunkery Road613 m away | 76 m² | 96 m² | +20 m² +26% | 2022 |
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| 16, Portland Crescent805 m away | 58 m² | 78 m² | +20 m² +34% | 2022 |
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| 8, Woodcroft96 m away | 101 m² | 121 m² | +20 m² +20% | 2021 |
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| 20, Broad Lawn740 m away | 100 m² | 120 m² | +20 m² +20% | 2021 |
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| 9, Portland Crescent805 m away | 75 m² | 95 m² | +20 m² +27% | 2020 |
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| 2, Scotts Terrace795 m away | 95 m² | 115 m² | +20 m² +21% | 2019 |
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| 18, Wynford Way0 m away | 87 m² | 106 m² | +19 m² +22% | 2026 |
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| 54, Wynford Way0 m away | 85 m² | 104 m² | +19 m² +22% | 2026 |
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| 58, Chapel Farm Road257 m away | 105 m² | 124 m² | +19 m² +18% | 2026 |
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| 14, Prestbury Square514 m away | 65 m² | 84 m² | +19 m² +29% | 2025 |
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| 672, Sidcup Road573 m away | 113 m² | 132 m² | +19 m² +17% | 2022 |
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| 497, Sidcup Road962 m away | 116 m² | 135 m² | +19 m² +16% | 2022 |
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| 183, White Horse Hill773 m away | 118 m² | 137 m² | +19 m² +16% | 2020 |
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| 46, Beaconsfield Road665 m away | 104 m² | 123 m² | +19 m² +18% | 2019 |
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| 174, Elmstead Lane808 m away | 83 m² | 102 m² | +19 m² +23% | 2018 |
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| 24, Woodcroft96 m away | 87 m² | 106 m² | +19 m² +22% | 2015 |
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| 69, Great Harry Drive582 m away | 97 m² | 116 m² | +19 m² +20% | 2015 |
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| 82, Prestbury Square613 m away | 62 m² | 80 m² | +18 m² +29% | 2025 |
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| 21, Steyning Grove787 m away | 68 m² | 85 m² | +17 m² +25% | 2021 |
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| 20, Adderley Gardens831 m away | 95 m² | 112 m² | +17 m² +18% | 2019 |
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| Flat 45, Pickwick Court, 60, West Park798 m away | 49 m² | 66 m² | +17 m² +35% | 2017 |
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| 22, Woodcroft96 m away | 93 m² | 109 m² | +16 m² +17% | 2025 |
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| 27, Bowmead399 m away | 72 m² | 88 m² | +16 m² +22% | 2021 |
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| 26, Belvoir Close522 m away | 68 m² | 84 m² | +16 m² +24% | 2021 |
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| 152, Beaconsfield Road726 m away | 60 m² | 76 m² | +16 m² +27% | 2021 |
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| 130, Castlecombe Road977 m away | 66 m² | 82 m² | +16 m² +24% | 2019 |
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| 77, St Keverne Road908 m away | 68 m² | 84 m² | +16 m² +24% | 2014 |
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| 53, Jason Walk686 m away | 60 m² | 75 m² | +15 m² +25% | 2025 |
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| 27, Devonshire Road845 m away | 73 m² | 88 m² | +15 m² +21% | 2025 |
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| 55, Wynford Way175 m away | 52 m² | 67 m² | +15 m² +29% | 2023 |
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