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 SL6 7PQ
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 |
|---|---|---|---|---|
| Firtrees, East Road815 m away | 127 m² | 269 m² | +142 m² +112% | 2012 |
| 3, Archer Close496 m away | 114 m² | 246 m² | +132 m² +116% | 2019 |
| 12, College Road441 m away | 106 m² | 235 m² | +129 m² +122% | 2015 |
| 58, All Saints Avenue811 m away | 112 m² | 234 m² | +122 m² +109% | 2017 |
| 80, Bridle Road516 m away | 86 m² | 206 m² | +120 m² +140% | 2021 |
| Coombeside, Mossy Vale552 m away | 141 m² | 253 m² | +112 m² +79% | 2019 |
| 17, Gringer Hill191 m away | 144 m² | 255 m² | +111 m² +77% | 2024 |
| 11, Craufurd Rise347 m away | 169 m² | 280 m² | +111 m² +66% | 2024 |
| 6, Fullbrook Close990 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.
| 96 m² |
| 205 m² |
| +109 m² +114% |
| 2024 |
| 82, Bridle Road516 m away | 94 m² | 192 m² | +98 m² +104% | 2025 |
|---|
| The Cottage, Boyndon Road877 m away | 171 m² | 268 m² | +97 m² +57% | 2019 |
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| 65, Derwent Drive612 m away | 110 m² | 204 m² | +94 m² +85% | 2022 |
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| 131, Courthouse Road947 m away | 104 m² | 192 m² | +88 m² +85% | 2023 |
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| 13, College Road410 m away | 83 m² | 169 m² | +86 m² +104% | 2018 |
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| 178, Courthouse Road701 m away | 112 m² | 194 m² | +82 m² +73% | 2022 |
|---|
| 4, Grassy Lane356 m away | 119 m² | 196 m² | +77 m² +65% | 2017 |
|---|
| Beechwood, 69, All Saints Avenue815 m away | 83 m² | 160 m² | +77 m² +93% | 2016 |
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| 46, College Avenue236 m away | 152 m² | 227 m² | +75 m² +49% | 2024 |
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| 12, Malvern Road638 m away | 127 m² | 201 m² | +74 m² +58% | 2025 |
|---|
| 4, Gordon Road739 m away | 80 m² | 153 m² | +73 m² +91% | 2022 |
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| 48, Cordwallis Road312 m away | 114 m² | 187 m² | +73 m² +64% | 2015 |
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| 10, Linden Avenue614 m away | 271 m² | 344 m² | +73 m² +27% | 2013 |
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| 25, Hargrave Road239 m away | 96 m² | 167 m² | +71 m² +74% | 2026 |
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| 27, North Town Road780 m away | 100 m² | 170 m² | +70 m² +70% | 2025 |
|---|
| 8, Pearce Close681 m away | 49 m² | 118 m² | +69 m² +141% | 2011 |
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| 6, Barn Close969 m away | 94 m² | 162 m² | +68 m² +72% | 2014 |
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| 18, Oaken Grove827 m away | 165 m² | 232 m² | +67 m² +41% | 2025 |
|---|
| 1, Australia Avenue444 m away | 93 m² | 159 m² | +66 m² +71% | 2024 |
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| 18, Belmont Road216 m away | 86 m² | 151 m² | +65 m² +76% | 2017 |
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| 16a, Cannon Court Road971 m away | 87 m² | 149 m² | +62 m² +71% | 2021 |
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| 28a, College Road441 m away | 113 m² | 174 m² | +61 m² +54% | 2024 |
|---|
| 48, Belmont Park Avenue329 m away | 100 m² | 161 m² | +61 m² +61% | 2015 |
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| 31, College Rise552 m away | 87 m² | 146 m² | +59 m² +68% | 2021 |
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| 12, Highgrove Park0 m away | 129 m² | 187 m² | +58 m² +45% | 2024 |
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| 6a, Crescent Drive377 m away | 86 m² | 143 m² | +57 m² +66% | 2023 |
|---|
| 10, College Road441 m away | 158 m² | 213 m² | +55 m² +35% | 2026 |
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| 75, All Saints Avenue815 m away | 96 m² | 151 m² | +55 m² +57% | 2020 |
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| 16, Belmont Road216 m away | 85 m² | 140 m² | +55 m² +65% | 2017 |
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| 5, Ray Mill Road West654 m away | 92 m² | 147 m² | +55 m² +60% | 2015 |
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| 176, Courthouse Road701 m away | 91 m² | 144 m² | +53 m² +58% | 2025 |
|---|
| 3, Derwent Drive519 m away | 95 m² | 148 m² | +53 m² +56% | 2023 |
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| 50, All Saints Avenue811 m away | 86 m² | 138 m² | +52 m² +60% | 2023 |
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| 14, Sandringham Road861 m away | 52 m² | 104 m² | +52 m² +100% | 2022 |
|---|
| 6, Laggan Square745 m away | 89 m² | 141 m² | +52 m² +58% | 2014 |
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| 7, Northfield Road858 m away | 76 m² | 128 m² | +52 m² +68% | 2014 |
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| 42, Spencers Road668 m away | 84 m² | 134 m² | +50 m² +60% | 2022 |
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| 2, Moorside Close738 m away | 96 m² | 146 m² | +50 m² +52% | 2020 |
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| Aberdeen House, 1 - 3, Cromwell Road660 m away | 52 m² | 102 m² | +50 m² +96% | 2019 |
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| 98, Ellington Park416 m away | 75 m² | 125 m² | +50 m² +67% | 2015 |
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| 13, Furze Platt Road540 m away | 182 m² | 232 m² | +50 m² +27% | 2010 |
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| 27, Ellington Park334 m away | 73 m² | 122 m² | +49 m² +67% | 2015 |
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| 210, Courthouse Road701 m away | 93 m² | 141 m² | +48 m² +52% | 2024 |
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| 10, Belmont Road216 m away | 81 m² | 129 m² | +48 m² +59% | 2023 |
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| 40, Laggan Road872 m away | 33 m² | 80 m² | +47 m² +142% | 2017 |
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| 18, Ellington Park334 m away | 89 m² | 135 m² | +46 m² +52% | 2024 |
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| 40a, Vicarage Road399 m away | 61 m² | 107 m² | +46 m² +75% | 2015 |
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| 38, All Saints Avenue811 m away | 102 m² | 147 m² | +45 m² +44% | 2021 |
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| 49, North Town Road780 m away | 124 m² | 169 m² | +45 m² +36% | 2015 |
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| 4, Sandringham Road861 m away | 64 m² | 108 m² | +44 m² +69% | 2019 |
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| 54, Ellington Park496 m away | 100 m² | 144 m² | +44 m² +44% | 2015 |
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| 31, Bridle Road524 m away | 124 m² | 168 m² | +44 m² +35% | 2015 |
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| Flat 32, Medway House, 7, Kidwells Close656 m away | 52 m² | 95 m² | +43 m² +83% | 2026 |
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| Lavender Cottage, Folly Way749 m away | 61 m² | 104 m² | +43 m² +70% | 2016 |
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| 29, Cromwell Road660 m away | 96 m² | 138 m² | +42 m² +44% | 2023 |
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| 17, Norfolk Road643 m away | 92 m² | 134 m² | +42 m² +46% | 2022 |
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| 182, Cookham Road641 m away | 63 m² | 105 m² | +42 m² +67% | 2012 |
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| 200, Courthouse Road701 m away | 84 m² | 125 m² | +41 m² +49% | 2018 |
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| 52, All Saints Avenue811 m away | 106 m² | 146 m² | +40 m² +38% | 2026 |
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| 61, Belmont Road413 m away | 85 m² | 125 m² | +40 m² +47% | 2025 |
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| 25, College Rise552 m away | 93 m² | 133 m² | +40 m² +43% | 2023 |
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| 48, Castle Hill682 m away | 155 m² | 194 m² | +39 m² +25% | 2026 |
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| 20, Wellington Road705 m away | 94 m² | 133 m² | +39 m² +41% | 2025 |
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| 32, Sandringham Road861 m away | 51 m² | 90 m² | +39 m² +76% | 2013 |
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| 96, All Saints Avenue769 m away | 134 m² | 172 m² | +38 m² +28% | 2026 |
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| 66, Cookham Road538 m away | 110 m² | 147 m² | +37 m² +34% | 2025 |
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| 43, Cookham Road495 m away | 85 m² | 122 m² | +37 m² +44% | 2019 |
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| 16, Pearce Road656 m away | 104 m² | 139 m² | +35 m² +34% | 2025 |
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| 62, Belmont Crescent590 m away | 168 m² | 203 m² | +35 m² +21% | 2022 |
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| 105, Ellington Park416 m away | 75 m² | 109 m² | +34 m² +45% | 2015 |
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| 38, Queensway663 m away | 80 m² | 114 m² | +34 m² +43% | 2015 |
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| 21, Wayside Mews580 m away | 78 m² | 112 m² | +34 m² +44% | 2014 |
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| 20, Belmont Road216 m away | 85 m² | 118 m² | +33 m² +39% | 2020 |
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| 101, Belmont Road500 m away | 85 m² | 118 m² | +33 m² +39% | 2018 |
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| 15, St Marks Road767 m away | 127 m² | 159 m² | +32 m² +25% | 2026 |
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| 141, Grenfell Road950 m away | 118 m² | 150 m² | +32 m² +27% | 2020 |
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| Nova, Camden Road647 m away | 113 m² | 145 m² | +32 m² +28% | 2019 |
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| 9, Cromwell Road660 m away | 88 m² | 120 m² | +32 m² +36% | 2017 |
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| 34, Sandringham Road861 m away | 45 m² | 77 m² | +32 m² +71% | 2017 |
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| 15, Belmont Road239 m away | 115 m² | 146 m² | +31 m² +27% | 2024 |
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| 6, Northfield Road858 m away | 59 m² | 90 m² | +31 m² +53% | 2022 |
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| 3, Furze Road615 m away | 101 m² | 132 m² | +31 m² +31% | 2016 |
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| 5, Yew Tree Close303 m away | 185 m² | 215 m² | +30 m² +16% | 2026 |
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| 8a, Moor Lane802 m away | 32 m² | 62 m² | +30 m² +94% | 2026 |
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| 11, Mossy Vale552 m away | 90 m² | 120 m² | +30 m² +33% | 2025 |
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| 27, High Town Road885 m away | 87 m² | 117 m² | +30 m² +34% | 2017 |
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| 8, Norfolk Park Cottages393 m away | 48 m² | 78 m² | +30 m² +63% | 2015 |
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| 25, College Glen514 m away | 75 m² | 104 m² | +29 m² +39% | 2025 |
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| 88, Cordwallis Road206 m away | 130 m² | 159 m² | +29 m² +22% | 2024 |
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| 64, Norfolk Road296 m away | 133 m² | 162 m² | +29 m² +22% | 2022 |
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| 66, Cordwallis Road312 m away | 98 m² | 127 m² | +29 m² +30% | 2020 |
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| 55, College Glen514 m away | 104 m² | 133 m² | +29 m² +28% | 2020 |
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| 110 - 114, High Street812 m away | 41 m² | 70 m² | +29 m² +71% | 2020 |
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| 73, Belmont Crescent563 m away | 38 m² | 67 m² | +29 m² +76% | 2019 |
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| 4, Archer Close496 m away | 136 m² | 165 m² | +29 m² +21% | 2017 |
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| 84, All Saints Avenue769 m away | 90 m² | 119 m² | +29 m² +32% | 2014 |
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| 15, Cannon Court Road973 m away | 95 m² | 123 m² | +28 m² +29% | 2025 |
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| 51, Hargrave Road239 m away | 123 m² | 151 m² | +28 m² +23% | 2022 |
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| 61, Norfolk Road333 m away | 106 m² | 134 m² | +28 m² +26% | 2019 |
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| 6, Moffy Hill661 m away | 85 m² | 113 m² | +28 m² +33% | 2015 |
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| Flat 6, Norwich House, Norfolk Road296 m away | 39 m² | 67 m² | +28 m² +72% | 2010 |
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| 189, Courthouse Road749 m away | 139 m² | 166 m² | +27 m² +19% | 2025 |
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| 64, Queensway804 m away | 80 m² | 107 m² | +27 m² +34% | 2025 |
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| Flat 3, Norwich House, Norfolk Road296 m away | 21 m² | 48 m² | +27 m² +129% | 2019 |
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| 32, Vicarage Road399 m away | 96 m² | 122 m² | +26 m² +27% | 2025 |
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| 115, Belmont Road500 m away | 88 m² | 114 m² | +26 m² +30% | 2025 |
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| 14, The Crescent559 m away | 113 m² | 138 m² | +25 m² +22% | 2026 |
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| 51, Harrow Lane434 m away | 90 m² | 115 m² | +25 m² +28% | 2017 |
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| 8, Wellington Road705 m away | 96 m² | 121 m² | +25 m² +26% | 2013 |
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| 19, Aldebury Road987 m away | 76 m² | 101 m² | +25 m² +33% | 2013 |
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| 11, Castle Court593 m away | 67 m² | 91 m² | +24 m² +36% | 2020 |
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| 128, All Saints Avenue766 m away | 118 m² | 141 m² | +23 m² +19% | 2026 |
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| 28, Gloucester Road686 m away | 78 m² | 101 m² | +23 m² +29% | 2024 |
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| 61, Windrush Way852 m away | 90 m² | 113 m² | +23 m² +26% | 2022 |
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| 254, Courthouse Road721 m away | 103 m² | 126 m² | +23 m² +22% | 2018 |
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| 1a, Bridle Close351 m away | 123 m² | 145 m² | +22 m² +18% | 2022 |
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| 10, College Glen514 m away | 84 m² | 106 m² | +22 m² +26% | 2022 |
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| 135, Grenfell Road950 m away | 103 m² | 125 m² | +22 m² +21% | 2022 |
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| 12, Raymond Road653 m away | 105 m² | 127 m² | +22 m² +21% | 2021 |
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| 10, Kings Grove996 m away | 119 m² | 141 m² | +22 m² +18% | 2017 |
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| Flat 3, Ruby Court, 18, North Town Road758 m away | 44 m² | 66 m² | +22 m² +50% | 2016 |
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| 58, St Lukes Road527 m away | 112 m² | 134 m² | +22 m² +20% | 2015 |
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| 53, Florence Avenue804 m away | 136 m² | 158 m² | +22 m² +16% | 2015 |
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| 5, Horsley Road735 m away | 133 m² | 154 m² | +21 m² +16% | 2026 |
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| 12, Belmont Road216 m away | 115 m² | 136 m² | +21 m² +18% | 2025 |
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| 128, Cordwallis Road206 m away | 89 m² | 110 m² | +21 m² +24% | 2023 |
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| 32, Cordwallis Road409 m away | 108 m² | 129 m² | +21 m² +19% | 2023 |
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| 5, Cromwell Road660 m away | 91 m² | 112 m² | +21 m² +23% | 2021 |
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| Flat 2, Arvon House, 3, Boyn Hill Avenue887 m away | 49 m² | 70 m² | +21 m² +43% | 2021 |
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| 36, The Crescent470 m away | 116 m² | 137 m² | +21 m² +18% | 2018 |
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| 44, Cordwallis Road312 m away | 86 m² | 107 m² | +21 m² +24% | 2016 |
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| 30, Cromwell Road660 m away | 97 m² | 118 m² | +21 m² +22% | 2016 |
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| 21, Florence Avenue804 m away | 96 m² | 117 m² | +21 m² +22% | 2016 |
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| 20, Laggan Square745 m away | 75 m² | 95 m² | +20 m² +27% | 2026 |
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| 29, North Town Road780 m away | 112 m² | 132 m² | +20 m² +18% | 2025 |
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| 13, Raymond Road653 m away | 85 m² | 105 m² | +20 m² +24% | 2023 |
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| 10, Wellington Road705 m away | 109 m² | 129 m² | +20 m² +18% | 2022 |
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| 12, Barn Close969 m away | 93 m² | 113 m² | +20 m² +22% | 2020 |
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| 9, College Road372 m away | 93 m² | 113 m² | +20 m² +22% | 2018 |
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| 39, Furze Platt Road644 m away | 93 m² | 113 m² | +20 m² +22% | 2018 |
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| 99, Belmont Road500 m away | 67 m² | 86 m² | +19 m² +28% | 2024 |
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| 126, All Saints Avenue766 m away | 121 m² | 140 m² | +19 m² +16% | 2024 |
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| Flat 2, St Marys Walk970 m away | 60 m² | 79 m² | +19 m² +32% | 2024 |
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| 3, College Road372 m away | 86 m² | 105 m² | +19 m² +22% | 2023 |
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| 35, North Town Road780 m away | 64 m² | 83 m² | +19 m² +30% | 2023 |
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| 53, College Glen514 m away | 89 m² | 108 m² | +19 m² +21% | 2022 |
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| 15, College Glen514 m away | 65 m² | 84 m² | +19 m² +29% | 2020 |
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| 14, Spencers Road668 m away | 67 m² | 86 m² | +19 m² +28% | 2020 |
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| 133, Grenfell Road950 m away | 108 m² | 127 m² | +19 m² +18% | 2019 |
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| 2, West Dean672 m away | 70 m² | 89 m² | +19 m² +27% | 2018 |
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| 121, Belmont Road500 m away | 103 m² | 121 m² | +18 m² +17% | 2023 |
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| Flat 3, Burnham Court, Fairford Road510 m away | 68 m² | 86 m² | +18 m² +26% | 2020 |
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| 9, Wayside Mews580 m away | 101 m² | 119 m² | +18 m² +18% | 2020 |
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| 15, Wayside Mews580 m away | 111 m² | 128 m² | +17 m² +15% | 2024 |
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| 18, Spencers Road668 m away | 92 m² | 109 m² | +17 m² +18% | 2022 |
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| 9, Belmont Vale568 m away | 85 m² | 102 m² | +17 m² +20% | 2019 |
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| The Cottage, School Lane618 m away | 89 m² | 106 m² | +17 m² +19% | 2018 |
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| 27, Windrush Way774 m away | 92 m² | 109 m² | +17 m² +18% | 2016 |
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| 72, Bridle Road220 m away | 89 m² | 105 m² | +16 m² +18% | 2023 |
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| 10, St Marys Walk970 m away | 90 m² | 106 m² | +16 m² +18% | 2023 |
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| Berkshire House, Queen Street950 m away | 31 m² | 47 m² | +16 m² +52% | 2017 |
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| Apartment 1, Maiden Vale, 21, Craufurd Rise327 m away | 55 m² | 70 m² | +15 m² +27% | 2026 |
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| 1, Cherwell Close880 m away | 98 m² | 113 m² | +15 m² +15% | 2025 |
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| 10, Willow Close858 m away | 66 m² | 81 m² | +15 m² +23% | 2024 |
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| 71, Belmont Crescent563 m away | 63 m² | 78 m² | +15 m² +24% | 2022 |
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| 12, Wellhouse Road808 m away | 40 m² | 55 m² | +15 m² +38% | 2015 |
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| 2, Jonathan Court, The Crescent428 m away | 53 m² | 68 m² | +15 m² +28% | 2014 |
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| 1, Jonathan Court, The Crescent428 m away | 53 m² | 68 m² | +15 m² +28% | 2014 |
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| 45, Whurley Way784 m away | 69 m² | 84 m² | +15 m² +22% | 2014 |
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