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 BN21 4HF
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 |
|---|---|---|---|---|
| Flat 1, 13, Arlington Road849 m away | 152 m² | 305 m² | +153 m² +101% | 2022 |
| 20, Furness Road520 m away | 84 m² | 199 m² | +115 m² +137% | 2025 |
| 40, Silverdale Road416 m away | 158 m² | 269 m² | +111 m² +70% | 2024 |
| 3, Milnthorpe Road907 m away | 314 m² | 419 m² | +105 m² +33% | 2021 |
| 12a, Grove Road849 m away | 130 m² | 230 m² | +100 m² +77% | 2025 |
| 17, South Cliff Avenue241 m away | 214 m² | 310 m² | +96 m² +45% | 2022 |
| The Tiles, 2, Furness Road520 m away | 120 m² | 212 m² | +92 m² +77% | 2024 |
| Flat 54, Devonshire Mansions, 54, Grand Parade559 m away | 77 m² | 162 m² | +85 m² +110% | 2011 |
| Flat 9, Highmead Manor, Buxton Road |
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.
| 124 m² |
| 208 m² |
| +84 m² +68% |
| 2013 |
| 8, College Road459 m away | 120 m² | 193 m² | +73 m² +61% | 2012 |
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| 33, Gaudick Road846 m away | 70 m² | 141 m² | +71 m² +101% | 2018 |
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| 6, Meads Street942 m away | 176 m² | 246 m² | +70 m² +40% | 2024 |
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| 7, West Terrace775 m away | 128 m² | 197 m² | +69 m² +54% | 2025 |
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| 9, Bolsover Road512 m away | 271 m² | 340 m² | +69 m² +25% | 2016 |
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| Flat 2, Ayra Court, 1, South Cliff314 m away | 134 m² | 202 m² | +68 m² +51% | 2011 |
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| Flat 10, Lamont Court, 15 - 16, Wilmington Square383 m away | 76 m² | 139 m² | +63 m² +83% | 2025 |
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| 45, South Street594 m away | 45 m² | 107 m² | +62 m² +138% | 2024 |
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| Flat 1, 18, Milnthorpe Road860 m away | 182 m² | 242 m² | +60 m² +33% | 2026 |
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| 14, Arlington Road849 m away | 331 m² | 388 m² | +57 m² +17% | 2019 |
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| 1, The Moorings807 m away | 91 m² | 146 m² | +55 m² +60% | 2014 |
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| Flat 3, St. Johns Court, 38, St Johns Road494 m away | 79 m² | 131 m² | +52 m² +66% | 2026 |
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| 24, Grange Road0 m away | 278 m² | 330 m² | +52 m² +19% | 2025 |
|---|
| 18a, Cornfield Terrace676 m away | 137 m² | 189 m² | +52 m² +38% | 2013 |
|---|
| Flat 1, Arden Mead, 4, Staveley Road679 m away | 78 m² | 129 m² | +51 m² +65% | 2026 |
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| 34b, Milnthorpe Road907 m away | 63 m² | 114 m² | +51 m² +81% | 2021 |
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| 36a, Saffrons Road953 m away | 186 m² | 237 m² | +51 m² +27% | 2020 |
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| Flat 15, St Johns House, 28, St Johns Road308 m away | 165 m² | 216 m² | +51 m² +31% | 2016 |
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| Flat 3, 37, Arlington Road963 m away | 83 m² | 134 m² | +51 m² +61% | 2009 |
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| 24, Furness Road520 m away | 238 m² | 288 m² | +50 m² +21% | 2018 |
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| Flat 1, Pearl Court, Devonshire Place710 m away | 119 m² | 167 m² | +48 m² +40% | 2017 |
|---|
| Flat 2, Arden Mead, 4, Staveley Road679 m away | 78 m² | 125 m² | +47 m² +60% | 2026 |
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| Flat 1, 7, Chatsworth Gardens588 m away | 86 m² | 133 m² | +47 m² +55% | 2011 |
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| 7, Lushington Road733 m away | 72 m² | 118 m² | +46 m² +64% | 2011 |
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| Flat 7, Riplingham, 41, Gaudick Road846 m away | 122 m² | 167 m² | +45 m² +37% | 2022 |
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| 89a, South Street626 m away | 59 m² | 104 m² | +45 m² +76% | 2010 |
|---|
| 20, Arlington Road849 m away | 43 m² | 86 m² | +43 m² +100% | 2014 |
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| Flat 37, Westdown House, Hartington Place878 m away | 74 m² | 116 m² | +42 m² +57% | 2024 |
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| 68, Grove Road609 m away | 49 m² | 90 m² | +41 m² +84% | 2015 |
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| Flat 1, Silverdale Lodge, 57, Silverdale Road243 m away | 128 m² | 168 m² | +40 m² +31% | 2026 |
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| 11, West Terrace775 m away | 56 m² | 94 m² | +38 m² +68% | 2020 |
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| 11a, Meads Street939 m away | 148 m² | 186 m² | +38 m² +26% | 2019 |
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| Flat 2, 46, St Johns Road645 m away | 171 m² | 207 m² | +36 m² +21% | 2018 |
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| Flat 1, Alastair Court, 30, Compton Street226 m away | 104 m² | 139 m² | +35 m² +34% | 2022 |
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| Flat 1, 11, Southfields Road951 m away | 95 m² | 130 m² | +35 m² +37% | 2018 |
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| 176 - 180, Terminus Road982 m away | 43 m² | 77 m² | +34 m² +79% | 2013 |
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| Flat 1, 29, Arlington Road963 m away | 95 m² | 128 m² | +33 m² +35% | 2014 |
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| Flat 4, Silverdale Lodge, 57, Silverdale Road243 m away | 110 m² | 142 m² | +32 m² +29% | 2025 |
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| 11, West Street Mews617 m away | 31 m² | 63 m² | +32 m² +103% | 2024 |
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| 32, The Village993 m away | 39 m² | 71 m² | +32 m² +82% | 2016 |
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| Flat 24a, Victoria Mansions, 208, Terminus Road988 m away | 78 m² | 109 m² | +31 m² +40% | 2021 |
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| 10, Bolton Road868 m away | 36 m² | 66 m² | +30 m² +83% | 2023 |
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| Flat 5, Angus House, 13, Granville Road234 m away | 105 m² | 135 m² | +30 m² +29% | 2022 |
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| Flat 1, 5, Spencer Road513 m away | 55 m² | 85 m² | +30 m² +55% | 2019 |
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| Flat 3, 9, Grassington Road133 m away | 135 m² | 165 m² | +30 m² +22% | 2016 |
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| Flat 7, Delamere Court, Hyde Road710 m away | 54 m² | 84 m² | +30 m² +56% | 2015 |
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| 10, College Road459 m away | 182 m² | 211 m² | +29 m² +16% | 2025 |
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| Minster House, York Road636 m away | 43 m² | 72 m² | +29 m² +67% | 2025 |
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| 6, De Walden Mews856 m away | 121 m² | 150 m² | +29 m² +24% | 2021 |
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| Flat 26, Sussex House, Hartington Place827 m away | 49 m² | 78 m² | +29 m² +59% | 2018 |
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| Flat 4, 9, Grange Gardens450 m away | 130 m² | 159 m² | +29 m² +22% | 2014 |
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| 11, Carlisle Road470 m away | 32 m² | 61 m² | +29 m² +91% | 2010 |
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| Flat 6, Valentine Court, South Street647 m away | 68 m² | 96 m² | +28 m² +41% | 2020 |
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| 14, Cornfield Terrace676 m away | 39 m² | 67 m² | +28 m² +72% | 2009 |
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| 34, Fairfield Road568 m away | 96 m² | 123 m² | +27 m² +28% | 2026 |
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| Flat 1, 21, Silverdale Road193 m away | 93 m² | 120 m² | +27 m² +29% | 2018 |
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| Flat 4, 36a, Meads Street966 m away | 28 m² | 55 m² | +27 m² +96% | 2015 |
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| Flat 3, Endcliffe Court, 18, Chesterfield Road832 m away | 41 m² | 67 m² | +26 m² +63% | 2026 |
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| Flat 1, 17, Old Orchard Road729 m away | 107 m² | 133 m² | +26 m² +24% | 2022 |
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| Flat 30, Saffrons Court, Compton Place Road590 m away | 109 m² | 134 m² | +25 m² +23% | 2025 |
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| Flat 6, Compton Grange, 63, Silverdale Road390 m away | 94 m² | 119 m² | +25 m² +27% | 2021 |
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| Flat 3, Redstone Mansions, 20, Carlisle Road357 m away | 99 m² | 124 m² | +25 m² +25% | 2019 |
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| 8b, Denton Road893 m away | 141 m² | 166 m² | +25 m² +18% | 2013 |
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| Flat 7, Rustington Court, 8, St Johns Road263 m away | 124 m² | 149 m² | +25 m² +20% | 2012 |
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| Flat 4, Central Court, 13, South Street594 m away | 52 m² | 76 m² | +24 m² +46% | 2021 |
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| Flat 1, Pendower, 51, Silverdale Road243 m away | 110 m² | 134 m² | +24 m² +22% | 2019 |
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| 21, Pearl Court, Cornfield Terrace710 m away | 125 m² | 148 m² | +23 m² +18% | 2025 |
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| Flat 5, Highcliff Court, 7, South Cliff305 m away | 79 m² | 102 m² | +23 m² +29% | 2024 |
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| 7, Milnthorpe Gardens726 m away | 120 m² | 143 m² | +23 m² +19% | 2024 |
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| 38, Meads Street966 m away | 23 m² | 46 m² | +23 m² +100% | 2021 |
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| Flat 3, 12, Milnthorpe Road860 m away | 78 m² | 101 m² | +23 m² +29% | 2020 |
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| Flat 4, 5, Compton Street734 m away | 38 m² | 60 m² | +22 m² +58% | 2024 |
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| Flat 2, Central Court, 13, South Street594 m away | 51 m² | 73 m² | +22 m² +43% | 2022 |
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| Flat 3, Milchester House, 12, Staveley Road695 m away | 102 m² | 124 m² | +22 m² +22% | 2022 |
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| Flat 1, 6, South Cliff305 m away | 61 m² | 83 m² | +22 m² +36% | 2019 |
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| 4, De Walden Mews856 m away | 119 m² | 141 m² | +22 m² +18% | 2016 |
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| Flat 6, 32, Grange Road0 m away | 53 m² | 75 m² | +22 m² +42% | 2014 |
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| 26, Jevington Gardens200 m away | 37 m² | 59 m² | +22 m² +59% | 2012 |
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| Flat 5c, Clovelly, 20, Blackwater Road426 m away | 55 m² | 77 m² | +22 m² +40% | 2010 |
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| Flat 3b, Silverdale Court, 35, Silverdale Road168 m away | 47 m² | 68 m² | +21 m² +45% | 2025 |
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| Flat 5, 12, Grassington Road233 m away | 31 m² | 52 m² | +21 m² +68% | 2024 |
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| Flat 8, Chartwell House, 1a, Wharf Road975 m away | 47 m² | 68 m² | +21 m² +45% | 2024 |
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| 15, Derwent Road951 m away | 106 m² | 127 m² | +21 m² +20% | 2023 |
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| 16a, Compton Street302 m away | 66 m² | 87 m² | +21 m² +32% | 2020 |
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| Flat 3, 12, Denton Road893 m away | 70 m² | 91 m² | +21 m² +30% | 2020 |
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| Flat 3, Monk Sherborne House, 10, Granville Road322 m away | 67 m² | 88 m² | +21 m² +31% | 2014 |
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| Flat 4, Egerton House, Buxton Road603 m away | 79 m² | 100 m² | +21 m² +27% | 2014 |
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| 4, Dalton Road882 m away | 96 m² | 117 m² | +21 m² +22% | 2012 |
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| Flat 48, Saffrons Court, Compton Place Road517 m away | 134 m² | 155 m² | +21 m² +16% | 2010 |
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| 30, Grove Road772 m away | 64 m² | 85 m² | +21 m² +33% | 2010 |
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| Flat 10, Jevington Place, Jevington Gardens137 m away | 105 m² | 125 m² | +20 m² +19% | 2026 |
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| Flat 1, 28, Silverdale Road390 m away | 78 m² | 98 m² | +20 m² +26% | 2022 |
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| Flat 2, Grand Mansions 1-3, Silverdale Road266 m away | 78 m² | 98 m² | +20 m² +26% | 2021 |
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| Flat 36, Colonel Stevens Court, 10a, Granville Road277 m away | 59 m² | 79 m² | +20 m² +34% | 2021 |
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| 11, Hyde Road704 m away | 39 m² | 59 m² | +20 m² +51% | 2018 |
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| Flat 29, Grand Mansions 1-3, Silverdale Road266 m away | 63 m² | 83 m² | +20 m² +32% | 2016 |
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| Flat 38, Westdown House, Hartington Place878 m away | 100 m² | 120 m² | +20 m² +20% | 2014 |
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| Flat 3, Saffrons Mead, 2, Grassington Road452 m away | 60 m² | 79 m² | +19 m² +32% | 2026 |
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| 6c, South Cliff Tower, Bolsover Road490 m away | 81 m² | 100 m² | +19 m² +23% | 2025 |
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| Flat 10, Earlsmead Court, 15, Granville Road234 m away | 53 m² | 72 m² | +19 m² +36% | 2024 |
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| Flat 1, 56, Grove Road671 m away | 45 m² | 64 m² | +19 m² +42% | 2024 |
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| Flat 2, Stafford House, Southfields Road912 m away | 82 m² | 101 m² | +19 m² +23% | 2023 |
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| Flat 3, Broy, 3, Beachy Head Road977 m away | 65 m² | 84 m² | +19 m² +29% | 2021 |
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| 21, Arlington Road849 m away | 103 m² | 122 m² | +19 m² +18% | 2016 |
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| Flat 4, Birley House, 13, College Road479 m away | 62 m² | 80 m² | +18 m² +29% | 2023 |
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| Flat 5, 10, Saffrons Road805 m away | 86 m² | 104 m² | +18 m² +21% | 2022 |
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| Flat 3, 14, College Road459 m away | 44 m² | 62 m² | +18 m² +41% | 2021 |
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| Flat 8, Endcliffe Court, 18, Chesterfield Road832 m away | 69 m² | 87 m² | +18 m² +26% | 2019 |
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| 7b, Bolton Road868 m away | 34 m² | 52 m² | +18 m² +53% | 2019 |
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| Flat 10, Victoria Court, 24 - 26, Burlington Place682 m away | 48 m² | 66 m² | +18 m² +38% | 2018 |
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| 6d, South Cliff Tower, Bolsover Road490 m away | 95 m² | 113 m² | +18 m² +19% | 2017 |
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| 34, Grove Road772 m away | 44 m² | 61 m² | +17 m² +39% | 2026 |
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| Flat 32, Linkswood, Compton Place Road900 m away | 84 m² | 101 m² | +17 m² +20% | 2026 |
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| Flat 5, 11, Buxton Road534 m away | 74 m² | 91 m² | +17 m² +23% | 2024 |
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| Flat 56, Park Gates, Chiswick Place630 m away | 82 m² | 99 m² | +17 m² +21% | 2024 |
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| Flat 1, Rosemullion, 43, Meads Road540 m away | 79 m² | 96 m² | +17 m² +22% | 2023 |
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| Flat 2, Berkeley Court, 1 - 9, Wilmington Square444 m away | 66 m² | 83 m² | +17 m² +26% | 2022 |
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| Flat 3, 13, Arlington Road849 m away | 104 m² | 121 m² | +17 m² +16% | 2020 |
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| Flat 2, 5a, Ivy Terrace846 m away | 60 m² | 77 m² | +17 m² +28% | 2019 |
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| Flat 1, 9a, Spencer Road513 m away | 71 m² | 88 m² | +17 m² +24% | 2017 |
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| Buxton Cottage, Compton Place Road888 m away | 102 m² | 119 m² | +17 m² +17% | 2017 |
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| 6, Trinity Trees822 m away | 56 m² | 73 m² | +17 m² +30% | 2015 |
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| Flat 7, Walford House, 20, Silverdale Road187 m away | 71 m² | 88 m² | +17 m² +24% | 2014 |
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| 30, Lushington Road696 m away | 27 m² | 44 m² | +17 m² +63% | 2010 |
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| Flat 6, Grassington Lodge 24a, Grassington Road133 m away | 80 m² | 96 m² | +16 m² +20% | 2026 |
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| 1, Chelsea Mews634 m away | 73 m² | 89 m² | +16 m² +22% | 2023 |
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| Flat 7b, De Walden Court, 51, Meads Road633 m away | 60 m² | 76 m² | +16 m² +27% | 2021 |
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| Flat 2, 12, Grange Gardens450 m away | 80 m² | 96 m² | +16 m² +20% | 2019 |
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| 23, Lushington Road733 m away | 42 m² | 58 m² | +16 m² +38% | 2009 |
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| Flat 1, Regency Court, 4 - 5, South Cliff314 m away | 85 m² | 100 m² | +15 m² +18% | 2026 |
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| 4, Bath Road691 m away | 73 m² | 88 m² | +15 m² +21% | 2026 |
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| Flat 26, Saffrons Court, Compton Place Road590 m away | 96 m² | 111 m² | +15 m² +16% | 2025 |
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| Flat 2, Oakley Down, 67, Silverdale Road416 m away | 80 m² | 95 m² | +15 m² +19% | 2024 |
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| Flat 5, Spencer House, 8, Spencer Road516 m away | 38 m² | 53 m² | +15 m² +39% | 2023 |
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| Flat 4a, Spencer Court, Spencer Road530 m away | 72 m² | 87 m² | +15 m² +21% | 2023 |
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| Flat 7, Saffrons Mead, 2, Grassington Road452 m away | 66 m² | 81 m² | +15 m² +23% | 2022 |
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| Flat 19, Fairfield Lodge, 5, Fairfield Road507 m away | 54 m² | 69 m² | +15 m² +28% | 2021 |
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| Flat 2, Sussex House, Hartington Place827 m away | 71 m² | 86 m² | +15 m² +21% | 2020 |
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| Flat 4, Silverdale Court, 35, Silverdale Road168 m away | 81 m² | 96 m² | +15 m² +19% | 2019 |
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| Flat 5, Dale Court, 30, Silverdale Road416 m away | 73 m² | 88 m² | +15 m² +21% | 2019 |
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| 26b, York Road620 m away | 40 m² | 55 m² | +15 m² +38% | 2019 |
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| Flat 3, Avondale, 8, Chesterfield Road783 m away | 67 m² | 82 m² | +15 m² +22% | 2018 |
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| 11a, Arlington Road849 m away | 92 m² | 107 m² | +15 m² +16% | 2016 |
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| Flat 1, 18, Lushington Road696 m away | 79 m² | 94 m² | +15 m² +19% | 2013 |
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| Flat 8, 45, Blackwater Road335 m away | 46 m² | 61 m² | +15 m² +33% | 2011 |
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