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 BH1 3EE
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 |
|---|---|---|---|---|
| 27, St Swithuns Road537 m away | 205 m² | 431 m² | +226 m² +110% | 2015 |
| 11, Cavendish Road804 m away | 282 m² | 407 m² | +125 m² +44% | 2014 |
| 87, Southcote Road694 m away | 206 m² | 319 m² | +113 m² +55% | 2023 |
| Flat 1, Roysdean Manor, 5, Derby Road588 m away | 75 m² | 180 m² | +105 m² +140% | 2010 |
| 51b, Christchurch Road790 m away | 160 m² | 247 m² | +87 m² +54% | 2010 |
| 15, Knole Gardens975 m away | 92 m² | 174 m² | +82 m² +89% | 2021 |
| 11, Northcote Road796 m away | 94 m² | 173 m² | +79 m² +84% | 2026 |
| 1, Woodford Road456 m away | 152 m² | 230 m² | +78 m² +51% | 2025 |
| 6, Coach House Place949 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.
| 72 m² |
| 147 m² |
| +75 m² +104% |
| 2015 |
| The Lodge, 18, Manor Road629 m away | 75 m² | 149 m² | +74 m² +99% | 2016 |
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| Flat 2, 1, Lytton Road892 m away | 104 m² | 169 m² | +65 m² +63% | 2020 |
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| 190, Holdenhurst Road829 m away | 50 m² | 115 m² | +65 m² +130% | 2010 |
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| Flat 36, Embassy Court, 26, Gervis Road305 m away | 86 m² | 149 m² | +63 m² +73% | 2019 |
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| 4, Annerley Road384 m away | 46 m² | 107 m² | +61 m² +133% | 2022 |
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| 1, Knyveton Road433 m away | 51 m² | 107 m² | +56 m² +110% | 2018 |
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| 7, Northcote Road796 m away | 44 m² | 97 m² | +53 m² +120% | 2024 |
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| Flat 16, Grange Court, Gervis Road115 m away | 45 m² | 94 m² | +49 m² +109% | 2020 |
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| 60d, Southcote Road902 m away | 68 m² | 117 m² | +49 m² +72% | 2014 |
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| 30, St Swithuns Road513 m away | 110 m² | 157 m² | +47 m² +43% | 2025 |
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| 219, Old Christchurch Road462 m away | 67 m² | 114 m² | +47 m² +70% | 2012 |
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| 24, Carlton Road857 m away | 271 m² | 317 m² | +46 m² +17% | 2019 |
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| 60a, Southcote Road902 m away | 47 m² | 88 m² | +41 m² +87% | 2014 |
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| Flat 3, 224a, Holdenhurst Road980 m away | 92 m² | 132 m² | +40 m² +43% | 2025 |
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| Flat 9, Regency Court, 36, Knyveton Road841 m away | 97 m² | 137 m² | +40 m² +41% | 2023 |
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| The Cottage, 10, Cavendish Road961 m away | 81 m² | 121 m² | +40 m² +49% | 2016 |
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| Flat C9, Elizabeth Court, Grove Road373 m away | 52 m² | 91 m² | +39 m² +75% | 2018 |
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| Flat 1, 18, Carlton Road857 m away | 33 m² | 72 m² | +39 m² +118% | 2013 |
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| 1b, Annerley Road384 m away | 53 m² | 91 m² | +38 m² +72% | 2025 |
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| 12a, Buckingham Mansions, Bath Road432 m away | 94 m² | 132 m² | +38 m² +40% | 2020 |
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| Woodland Point, Wootton Mount507 m away | 37 m² | 75 m² | +38 m² +103% | 2019 |
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| 6, Glenfern Lodge, 188b, Old Christchurch Road726 m away | 34 m² | 72 m² | +38 m² +112% | 2010 |
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| Flat 9, Earls Court, 9, Gervis Road98 m away | 93 m² | 130 m² | +37 m² +40% | 2011 |
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| 101, Old Christchurch Road931 m away | 123 m² | 157 m² | +34 m² +28% | 2018 |
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| 57, Northcote Road891 m away | 66 m² | 100 m² | +34 m² +52% | 2014 |
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| Flat 29, Sandykeld, 26, Manor Road869 m away | 173 m² | 206 m² | +33 m² +19% | 2018 |
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| 25, Corporation Road839 m away | 59 m² | 92 m² | +33 m² +56% | 2013 |
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| Flat 16, The Pinnacle, 57, St Peters Road750 m away | 82 m² | 112 m² | +30 m² +37% | 2020 |
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| Apartment 6, The Battalions, 2a, Portchester Place850 m away | 66 m² | 96 m² | +30 m² +45% | 2019 |
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| Flat 21, Albany, Manor Road491 m away | 165 m² | 194 m² | +29 m² +18% | 2026 |
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| Flat 3, Grange Court, Gervis Road115 m away | 105 m² | 134 m² | +29 m² +28% | 2016 |
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| Bassett House, 41, Knyveton Road883 m away | 64 m² | 93 m² | +29 m² +45% | 2010 |
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| Flat 13, Roysdean Manor, 5, Derby Road588 m away | 50 m² | 78 m² | +28 m² +56% | 2021 |
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| Flat 8, Roysdean Manor, 5, Derby Road588 m away | 59 m² | 87 m² | +28 m² +47% | 2020 |
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| Flat 5, Tattersalls, 30 - 32, Derby Road561 m away | 85 m² | 113 m² | +28 m² +33% | 2014 |
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| 60b, Southcote Road902 m away | 67 m² | 95 m² | +28 m² +42% | 2014 |
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| Flat 5, 7, Knyveton Road433 m away | 32 m² | 59 m² | +27 m² +84% | 2018 |
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| 51, Christchurch Road790 m away | 48 m² | 75 m² | +27 m² +56% | 2013 |
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| 8, Amberley Court, Bath Road491 m away | 71 m² | 97 m² | +26 m² +37% | 2022 |
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| Flat 1, 8, Southcote Road644 m away | 24 m² | 50 m² | +26 m² +108% | 2019 |
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| Flat 3, 30, Carlton Road857 m away | 43 m² | 69 m² | +26 m² +60% | 2019 |
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| Flat 18, Dean Park Mansions, 27, Dean Park Road900 m away | 70 m² | 95 m² | +25 m² +36% | 2025 |
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| 12, Elwyn Road940 m away | 72 m² | 97 m² | +25 m² +35% | 2024 |
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| Flat 6, Jacey House, Bath Road389 m away | 33 m² | 57 m² | +24 m² +73% | 2024 |
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| Flat 87, Bath Hill Court, Bath Road737 m away | 157 m² | 181 m² | +24 m² +15% | 2024 |
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| 196, Holdenhurst Road829 m away | 38 m² | 62 m² | +24 m² +63% | 2017 |
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| Flat 11, Grange Court, Gervis Road115 m away | 55 m² | 79 m² | +24 m² +44% | 2010 |
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| 6, The Haven, 16, St Swithuns Road South355 m away | 43 m² | 66 m² | +23 m² +53% | 2022 |
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| Flat A11, Elizabeth Court, Grove Road373 m away | 69 m² | 92 m² | +23 m² +33% | 2022 |
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| Flat 12, Roysdean Manor, 5, Derby Road588 m away | 50 m² | 73 m² | +23 m² +46% | 2021 |
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| Flat 10, Toft Mansions, 43, Manor Road552 m away | 69 m² | 92 m² | +23 m² +33% | 2020 |
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| 18 - 22, Holdenhurst Road340 m away | 65 m² | 88 m² | +23 m² +35% | 2016 |
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| 16, Gardens View782 m away | 41 m² | 64 m² | +23 m² +56% | 2013 |
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| Flat 1, 5, Glen Fern Road691 m away | 60 m² | 82 m² | +22 m² +37% | 2025 |
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| Hinton Chambers, Hinton Road961 m away | 83 m² | 105 m² | +22 m² +27% | 2025 |
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| 5d, Spencer Road826 m away | 40 m² | 62 m² | +22 m² +55% | 2020 |
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| 17, Carlton Road897 m away | 101 m² | 123 m² | +22 m² +22% | 2016 |
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| 64, Southcote Road902 m away | 116 m² | 137 m² | +21 m² +18% | 2020 |
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| 23, Christchurch Road387 m away | 50 m² | 71 m² | +21 m² +42% | 2019 |
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| 50, Southcote Road902 m away | 30 m² | 51 m² | +21 m² +70% | 2018 |
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| 5 Madeira Mews, 22, Madeira Road703 m away | 96 m² | 117 m² | +21 m² +22% | 2011 |
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| Flat 7, 208 - 210, Old Christchurch Road637 m away | 45 m² | 66 m² | +21 m² +47% | 2010 |
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| Flat 5, Dunholme Manor, 55, Manor Road646 m away | 87 m² | 107 m² | +20 m² +23% | 2019 |
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| 3, Palm Court, 38, Christchurch Road324 m away | 36 m² | 56 m² | +20 m² +56% | 2018 |
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| Ground Floor And Basement Shop, 4, Lansdowne Road453 m away | 54 m² | 74 m² | +20 m² +37% | 2008 |
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| Flat 74, The Chocolate Box, 8 - 10, Christchurch Road272 m away | 34 m² | 53 m² | +19 m² +56% | 2025 |
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| Freshwater House, 6, Dean Park Crescent948 m away | 48 m² | 67 m² | +19 m² +40% | 2025 |
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| Flat 6, Holly Lodge, 5, Cavendish Road804 m away | 67 m² | 86 m² | +19 m² +28% | 2023 |
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| 5a, Spencer Road826 m away | 75 m² | 94 m² | +19 m² +25% | 2023 |
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| Flat 12, Keverstone Court, 97, Manor Road952 m away | 109 m² | 128 m² | +19 m² +17% | 2014 |
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| Flat 1, Lansdowne House, Christchurch Road192 m away | 62 m² | 80 m² | +18 m² +29% | 2023 |
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| Flat 5, Hurlingham House, 14, Manor Road307 m away | 60 m² | 78 m² | +18 m² +30% | 2023 |
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| Flat 22, Dean Park Mansions, 27, Dean Park Road900 m away | 77 m² | 95 m² | +18 m² +23% | 2022 |
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| 22, County Heights, 30, Hinton Road798 m away | 53 m² | 71 m² | +18 m² +34% | 2021 |
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| 66a, Southcote Road902 m away | 48 m² | 66 m² | +18 m² +38% | 2021 |
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| 36, Frances Road640 m away | 46 m² | 64 m² | +18 m² +39% | 2019 |
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| Flat A6, Woodland Grange, 31, Dean Park Road853 m away | 52 m² | 70 m² | +18 m² +35% | 2016 |
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| 9, The Haven, 16, St Swithuns Road South355 m away | 31 m² | 48 m² | +17 m² +55% | 2023 |
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| A home on Old Christchurch Road931 m away | 69 m² | 86 m² | +17 m² +25% | 2020 |
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| Flat 52, Hinton Wood, 17, Grove Road567 m away | 100 m² | 117 m² | +17 m² +17% | 2019 |
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| 234, Holdenhurst Road980 m away | 28 m² | 45 m² | +17 m² +61% | 2015 |
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| 39, St Swithuns Road537 m away | 79 m² | 96 m² | +17 m² +22% | 2014 |
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| 32 - 34, Frances Road640 m away | 49 m² | 66 m² | +17 m² +35% | 2009 |
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| Ocean Court, 28, Derby Road638 m away | 31 m² | 48 m² | +17 m² +55% | 2008 |
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| G5, Pine Grange, Bath Road467 m away | 59 m² | 75 m² | +16 m² +27% | 2025 |
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| Flat 1, Manor Cottage, 25, Christchurch Road387 m away | 63 m² | 79 m² | +16 m² +25% | 2020 |
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| Flat 7, Dean Park Lodge, 15, Cavendish Road804 m away | 62 m² | 78 m² | +16 m² +26% | 2020 |
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| 83b, Manor Road726 m away | 97 m² | 113 m² | +16 m² +16% | 2019 |
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| 175a, Holdenhurst Road825 m away | 39 m² | 55 m² | +16 m² +41% | 2018 |
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| Flat B6, Woodland Grange, 31, Dean Park Road853 m away | 54 m² | 70 m² | +16 m² +30% | 2016 |
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| 23, Windham Road979 m away | 77 m² | 93 m² | +16 m² +21% | 2009 |
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| Flat 96, The Chocolate Box, 8 - 10, Christchurch Road272 m away | 88 m² | 103 m² | +15 m² +17% | 2025 |
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| Flat C4, Elizabeth Court, Grove Road339 m away | 64 m² | 79 m² | +15 m² +23% | 2024 |
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| 27, Buckingham Mansions, Bath Road432 m away | 72 m² | 87 m² | +15 m² +21% | 2022 |
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| Exchequer Grange, Wootton Gardens626 m away | 25 m² | 40 m² | +15 m² +60% | 2021 |
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| Flat 24, Kensington Court, 43, Knyveton Road933 m away | 61 m² | 76 m² | +15 m² +25% | 2020 |
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| Flat 29, Wingfield Court, Manor Road323 m away | 44 m² | 59 m² | +15 m² +34% | 2018 |
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| Flat 5, 7, Holdenhurst Road378 m away | 18 m² | 33 m² | +15 m² +83% | 2018 |
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| Flat D6, Woodland Grange, 31, Dean Park Road853 m away | 55 m² | 70 m² | +15 m² +27% | 2016 |
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| Flat 19, Roslin Hall, 6, Manor Road258 m away | 88 m² | 103 m² | +15 m² +17% | 2015 |
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| Flat 1, 55a, Christchurch Road790 m away | 53 m² | 68 m² | +15 m² +28% | 2014 |
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| Flat 23, Bourne Pines, 44 - 46, Christchurch Road433 m away | 55 m² | 70 m² | +15 m² +27% | 2013 |
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| 7, Glen Fern Road709 m away | 80 m² | 95 m² | +15 m² +19% | 2013 |
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| Flat 7, Knole Hall, 60 - 64, Knyveton Road996 m away | 30 m² | 45 m² | +15 m² +50% | 2011 |
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| Flat 3, Princes Court, St Peters Road647 m away | 75 m² | 90 m² | +15 m² +20% | 2010 |
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| Flat 3, Crag Head, 77, Manor Road796 m away | 58 m² | 73 m² | +15 m² +26% | 2009 |
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| Woodheath, 21, Knyveton Road729 m away | 39 m² | 54 m² | +15 m² +38% | 2008 |
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