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 SO15 5JA
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 |
|---|---|---|---|---|
| 9, Raymond Road244 m away | 168 m² | 318 m² | +150 m² +89% | 2022 |
| 11, Wilton Crescent370 m away | 87 m² | 184 m² | +97 m² +111% | 2021 |
| 55, Shirley Avenue742 m away | 68 m² | 157 m² | +89 m² +131% | 2009 |
| 178, Wilton Road210 m away | 137 m² | 221 m² | +84 m² +61% | 2024 |
| 145, Hill Lane394 m away | 277 m² | 359 m² | +82 m² +30% | 2014 |
| 16, Atherley Road841 m away | 70 m² | 145 m² | +75 m² +107% | 2021 |
| 24, Shirley Avenue917 m away | 158 m² | 231 m² | +73 m² +46% | 2026 |
| 31, Howard Road754 m away | 69 m² | 141 m² | +72 m² +104% | 2021 |
| 70, Radway Road427 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.
| 147 m² |
| +71 m² +93% |
| 2024 |
| 83, Shirley Avenue742 m away | 180 m² | 250 m² | +70 m² +39% | 2022 |
|---|
| 6, Kineton Road334 m away | 125 m² | 192 m² | +67 m² +54% | 2017 |
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| 2, Mayfair Gardens705 m away | 100 m² | 165 m² | +65 m² +65% | 2025 |
|---|
| 59, Raymond Road244 m away | 120 m² | 185 m² | +65 m² +54% | 2013 |
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| 5, Dyer Road895 m away | 84 m² | 148 m² | +64 m² +76% | 2014 |
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| 25, Suffolk Avenue589 m away | 68 m² | 131 m² | +63 m² +93% | 2024 |
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| 4, Suffolk Avenue664 m away | 146 m² | 206 m² | +60 m² +41% | 2015 |
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| Flat 1, 55, Howard Road785 m away | 48 m² | 107 m² | +59 m² +123% | 2013 |
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| 50, Thornbury Avenue368 m away | 188 m² | 246 m² | +58 m² +31% | 2021 |
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| The Magnolias, 53, Evelyn Crescent134 m away | 158 m² | 216 m² | +58 m² +37% | 2019 |
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| 41, Newlands Avenue683 m away | 134 m² | 190 m² | +56 m² +42% | 2016 |
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| 13, Darlington Gardens565 m away | 86 m² | 141 m² | +55 m² +64% | 2024 |
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| 167, Wilton Road308 m away | 169 m² | 223 m² | +54 m² +32% | 2022 |
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| 18, Reynolds Road584 m away | 86 m² | 139 m² | +53 m² +62% | 2025 |
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| 26, Atherley Road841 m away | 106 m² | 159 m² | +53 m² +50% | 2025 |
|---|
| 51, Wilton Avenue921 m away | 141 m² | 192 m² | +51 m² +36% | 2020 |
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| 32, Lumsden Avenue680 m away | 127 m² | 177 m² | +50 m² +39% | 2014 |
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| 123, Howards Grove838 m away | 71 m² | 121 m² | +50 m² +70% | 2014 |
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| Upper Shirley Post Office, 64, Wilton Road872 m away | 75 m² | 122 m² | +47 m² +63% | 2020 |
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| 60, Atherley Road588 m away | 106 m² | 152 m² | +46 m² +43% | 2014 |
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| 89, Stafford Road734 m away | 138 m² | 183 m² | +45 m² +33% | 2025 |
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| 28, Raymond Road279 m away | 130 m² | 175 m² | +45 m² +35% | 2020 |
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| 8, Cranbourne Close437 m away | 55 m² | 100 m² | +45 m² +82% | 2014 |
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| 82, Wilton Avenue948 m away | 129 m² | 172 m² | +43 m² +33% | 2014 |
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| 105, Hill Lane573 m away | 205 m² | 247 m² | +42 m² +20% | 2026 |
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| 100, Wilton Road746 m away | 77 m² | 119 m² | +42 m² +55% | 2025 |
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| 89, Charlton Road406 m away | 128 m² | 169 m² | +41 m² +32% | 2020 |
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| 45, Treeside Road809 m away | 70 m² | 111 m² | +41 m² +59% | 2014 |
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| 2, Landguard Road956 m away | 62 m² | 103 m² | +41 m² +66% | 2011 |
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| 28, Atherley Road841 m away | 33 m² | 73 m² | +40 m² +121% | 2017 |
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| 20, Leicester Road913 m away | 96 m² | 136 m² | +40 m² +42% | 2017 |
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| 4, Reynolds Road584 m away | 99 m² | 139 m² | +40 m² +40% | 2014 |
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| 14, Eastbourne Avenue332 m away | 82 m² | 121 m² | +39 m² +48% | 2026 |
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| 15, Norfolk Road369 m away | 109 m² | 148 m² | +39 m² +36% | 2026 |
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| 28, Dawlish Avenue437 m away | 86 m² | 125 m² | +39 m² +45% | 2025 |
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| 61, The Avenue916 m away | 48 m² | 86 m² | +38 m² +79% | 2023 |
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| 155, Hill Lane388 m away | 112 m² | 150 m² | +38 m² +34% | 2016 |
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| 65, Wilton Crescent583 m away | 81 m² | 118 m² | +37 m² +46% | 2026 |
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| Flat 3, Avenue Place, 121, Alma Road990 m away | 75 m² | 112 m² | +37 m² +49% | 2019 |
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| 144, Wilton Road412 m away | 153 m² | 189 m² | +36 m² +24% | 2024 |
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| 13, Pirrie Close611 m away | 108 m² | 143 m² | +35 m² +32% | 2023 |
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| 20, Gurney Road716 m away | 100 m² | 135 m² | +35 m² +35% | 2020 |
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| 59, Charlton Road428 m away | 89 m² | 124 m² | +35 m² +39% | 2017 |
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| 32, Salem Street925 m away | 81 m² | 116 m² | +35 m² +43% | 2014 |
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| 238, Hill Lane502 m away | 173 m² | 207 m² | +34 m² +20% | 2016 |
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| 68, Atherley Road588 m away | 83 m² | 117 m² | +34 m² +41% | 2014 |
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| Flat 32, Arundel House, 4, Northlands Road665 m away | 68 m² | 102 m² | +34 m² +50% | 2011 |
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| 2, Harland Crescent725 m away | 114 m² | 147 m² | +33 m² +29% | 2025 |
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| 12, Banister Gardens667 m away | 113 m² | 146 m² | +33 m² +29% | 2024 |
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| 83, Atherley Road583 m away | 130 m² | 163 m² | +33 m² +25% | 2016 |
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| 13, Twyford Avenue813 m away | 106 m² | 138 m² | +32 m² +30% | 2026 |
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| 17, Norfolk Road369 m away | 121 m² | 153 m² | +32 m² +26% | 2024 |
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| 209, Wilton Road0 m away | 111 m² | 143 m² | +32 m² +29% | 2016 |
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| 15a, Westrow Gardens552 m away | 138 m² | 170 m² | +32 m² +23% | 2013 |
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| 21, Court Royal Mews553 m away | 141 m² | 172 m² | +31 m² +22% | 2022 |
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| 115, Wallace Court, The Dell759 m away | 51 m² | 82 m² | +31 m² +61% | 2020 |
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| 64, Darlington Gardens534 m away | 101 m² | 132 m² | +31 m² +31% | 2017 |
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| 22, Silverdale Road588 m away | 38 m² | 69 m² | +31 m² +82% | 2009 |
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| 19, Northlands Gardens367 m away | 163 m² | 193 m² | +30 m² +18% | 2024 |
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| 111, Alma Road990 m away | 161 m² | 190 m² | +29 m² +18% | 2013 |
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| 1a, Eastbourne Avenue290 m away | 59 m² | 87 m² | +28 m² +47% | 2021 |
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| 17, Raymond Road244 m away | 142 m² | 170 m² | +28 m² +20% | 2018 |
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| 61, Malmesbury Road565 m away | 93 m² | 121 m² | +28 m² +30% | 2016 |
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| 6, Wilton Crescent394 m away | 87 m² | 114 m² | +27 m² +31% | 2026 |
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| 46, Milton Road966 m away | 126 m² | 153 m² | +27 m² +21% | 2025 |
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| 20, Atherley Court92 m away | 178 m² | 205 m² | +27 m² +15% | 2024 |
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| 12, Lumsden Avenue680 m away | 134 m² | 161 m² | +27 m² +20% | 2014 |
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| 39, Eastbourne Avenue290 m away | 109 m² | 135 m² | +26 m² +24% | 2023 |
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| 12, Twyford Avenue817 m away | 113 m² | 139 m² | +26 m² +23% | 2018 |
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| 34, Howard Road702 m away | 21 m² | 47 m² | +26 m² +124% | 2016 |
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| 101, Upper Shirley Avenue643 m away | 160 m² | 186 m² | +26 m² +16% | 2015 |
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| 15, Shanklin Crescent783 m away | 130 m² | 155 m² | +25 m² +19% | 2020 |
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| 403, Shirley Road878 m away | 34 m² | 59 m² | +25 m² +74% | 2016 |
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| 90, Shirley Avenue792 m away | 114 m² | 139 m² | +25 m² +22% | 2015 |
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| 85, Wilton Avenue921 m away | 110 m² | 134 m² | +24 m² +22% | 2023 |
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| 123, Firgrove Road933 m away | 48 m² | 72 m² | +24 m² +50% | 2023 |
|---|
| 40, Raymond Road279 m away | 112 m² | 136 m² | +24 m² +21% | 2016 |
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| 32, Howard Road702 m away | 35 m² | 59 m² | +24 m² +69% | 2016 |
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| 7, Luccombe Road854 m away | 122 m² | 146 m² | +24 m² +20% | 2015 |
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| 11, Malmesbury Road734 m away | 51 m² | 75 m² | +24 m² +47% | 2014 |
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| 3a, Whithedwood Avenue510 m away | 84 m² | 107 m² | +23 m² +27% | 2026 |
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| 93, Marshall Square576 m away | 138 m² | 161 m² | +23 m² +17% | 2026 |
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| 75, Marshall Court, Marshall Square550 m away | 107 m² | 130 m² | +23 m² +21% | 2025 |
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| 27d, Archers Road730 m away | 66 m² | 89 m² | +23 m² +35% | 2023 |
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| 5, Cromwell Road937 m away | 101 m² | 124 m² | +23 m² +23% | 2019 |
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| 63, Wilton Road909 m away | 106 m² | 129 m² | +23 m² +22% | 2016 |
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| Flat 9, Avenue Court, Westwood Road891 m away | 61 m² | 84 m² | +23 m² +38% | 2014 |
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| 7, Charles Miller Court, Marshall Square494 m away | 76 m² | 98 m² | +22 m² +29% | 2024 |
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| 6, Harland Crescent725 m away | 103 m² | 125 m² | +22 m² +21% | 2024 |
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| 33, Cedar Avenue560 m away | 99 m² | 121 m² | +22 m² +22% | 2023 |
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| Flat 2, 42, Bellemoor Road921 m away | 40 m² | 62 m² | +22 m² +55% | 2022 |
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| 1, Dawlish Avenue391 m away | 75 m² | 97 m² | +22 m² +29% | 2021 |
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| 50, Newlands Avenue497 m away | 130 m² | 152 m² | +22 m² +17% | 2021 |
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| 32, Archers Road853 m away | 76 m² | 98 m² | +22 m² +29% | 2016 |
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| 88c, Upper Shirley Avenue681 m away | 50 m² | 72 m² | +22 m² +44% | 2015 |
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| 11a, Malmesbury Road734 m away | 48 m² | 70 m² | +22 m² +46% | 2014 |
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| 10, Mulberry Walk801 m away | 117 m² | 139 m² | +22 m² +19% | 2014 |
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| Flat 2, Avenue Court, Westwood Road891 m away | 72 m² | 94 m² | +22 m² +31% | 2014 |
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| 72, Wilton Crescent817 m away | 93 m² | 114 m² | +21 m² +23% | 2026 |
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| 5, Charles Knott Gardens667 m away | 104 m² | 125 m² | +21 m² +20% | 2022 |
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| 6, Luccombe Road860 m away | 93 m² | 114 m² | +21 m² +23% | 2014 |
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| 172, Shirley Road915 m away | 78 m² | 99 m² | +21 m² +27% | 2013 |
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| 20, St James Road321 m away | 132 m² | 152 m² | +20 m² +15% | 2026 |
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| 18, Cedar Avenue480 m away | 90 m² | 110 m² | +20 m² +22% | 2026 |
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| 6, Lisbon Road989 m away | 62 m² | 82 m² | +20 m² +32% | 2024 |
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| Flat 2, Marlborough House, 2, Northlands Road665 m away | 64 m² | 84 m² | +20 m² +31% | 2019 |
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| 1, Twyford Avenue862 m away | 113 m² | 133 m² | +20 m² +18% | 2019 |
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| 94, Milton Road886 m away | 81 m² | 101 m² | +20 m² +25% | 2019 |
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| 7, Eastbourne Avenue290 m away | 50 m² | 70 m² | +20 m² +40% | 2018 |
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| 2, Darlington Gardens593 m away | 100 m² | 120 m² | +20 m² +20% | 2014 |
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| 292a, Shirley Road836 m away | 25 m² | 45 m² | +20 m² +80% | 2014 |
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| Flat 4, Avenue Court, Westwood Road891 m away | 68 m² | 88 m² | +20 m² +29% | 2014 |
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| Flat 8, Avington House, 1, Mayfair Gardens757 m away | 53 m² | 72 m² | +19 m² +36% | 2025 |
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| 69, Suffolk Avenue589 m away | 119 m² | 138 m² | +19 m² +16% | 2022 |
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| 10, Reynolds Road584 m away | 84 m² | 103 m² | +19 m² +23% | 2021 |
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| Flat 10, Avenue Court, Westwood Road891 m away | 69 m² | 88 m² | +19 m² +28% | 2014 |
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| Flat 11, Avenue Court, Westwood Road891 m away | 75 m² | 94 m² | +19 m² +25% | 2014 |
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| Flat 7, Avenue Court, Westwood Road891 m away | 69 m² | 88 m² | +19 m² +28% | 2014 |
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| 103, Milton Road880 m away | 43 m² | 62 m² | +19 m² +44% | 2013 |
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| 12, Thornbury Avenue576 m away | 36 m² | 55 m² | +19 m² +53% | 2009 |
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| 96, Marshall Square576 m away | 105 m² | 123 m² | +18 m² +17% | 2022 |
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| 90, Alma Road979 m away | 113 m² | 131 m² | +18 m² +16% | 2018 |
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| 24, Mayfair Gardens705 m away | 92 m² | 110 m² | +18 m² +20% | 2016 |
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| B7, Archers739 m away | 79 m² | 97 m² | +18 m² +23% | 2015 |
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| 87, Milton Road880 m away | 87 m² | 105 m² | +18 m² +21% | 2014 |
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| Flat 13, Avenue Court, Westwood Road891 m away | 70 m² | 88 m² | +18 m² +26% | 2014 |
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| Flat 2, Simco Court, 81, Northlands Road674 m away | 50 m² | 67 m² | +17 m² +34% | 2025 |
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| Flat 24, Sovereign Court, 3, Winn Road981 m away | 74 m² | 91 m² | +17 m² +23% | 2025 |
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| 88, Malmesbury Road513 m away | 90 m² | 107 m² | +17 m² +19% | 2019 |
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| 38, Darwin Road458 m away | 52 m² | 69 m² | +17 m² +33% | 2013 |
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| 60, The Avenue916 m away | 63 m² | 79 m² | +16 m² +25% | 2026 |
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| Flat 4, 23, Hulse Road822 m away | 78 m² | 94 m² | +16 m² +21% | 2025 |
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| 45, Milton Road940 m away | 98 m² | 114 m² | +16 m² +16% | 2025 |
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| Flat 12, Rowan House, 17, Hulse Road771 m away | 53 m² | 69 m² | +16 m² +30% | 2024 |
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| 57, Malmesbury Road565 m away | 81 m² | 97 m² | +16 m² +20% | 2023 |
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| Flat 6, Maycroft Court, Hulse Road655 m away | 62 m² | 78 m² | +16 m² +26% | 2022 |
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| 98, Milton Road886 m away | 93 m² | 109 m² | +16 m² +17% | 2022 |
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| 24, Treeside Road733 m away | 96 m² | 112 m² | +16 m² +17% | 2020 |
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| Flat 8, Romsey Court, Howard Road812 m away | 54 m² | 70 m² | +16 m² +30% | 2019 |
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| Flat 1, Holt Lodge, Northlands Road500 m away | 56 m² | 72 m² | +16 m² +29% | 2017 |
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| 66, Bellemoor Road921 m away | 84 m² | 100 m² | +16 m² +19% | 2016 |
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| 20, Salem Street925 m away | 75 m² | 91 m² | +16 m² +21% | 2013 |
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| Flat 48, Withewood Mansions, Shirley Road916 m away | 43 m² | 59 m² | +16 m² +37% | 2012 |
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| Flat 3, 105, Alma Road990 m away | 31 m² | 46 m² | +15 m² +48% | 2026 |
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| 9, Darlington Gardens565 m away | 90 m² | 105 m² | +15 m² +17% | 2025 |
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| 19, Torquay Avenue570 m away | 85 m² | 100 m² | +15 m² +18% | 2024 |
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| 6, Charles Miller Court, Marshall Square494 m away | 58 m² | 73 m² | +15 m² +26% | 2023 |
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| Flat 10, Sovereign Court, 3, Winn Road981 m away | 77 m² | 92 m² | +15 m² +19% | 2023 |
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| 3, Mulberry Walk801 m away | 92 m² | 107 m² | +15 m² +16% | 2022 |
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| Flat 6, Avenue Court, Westwood Road891 m away | 69 m² | 84 m² | +15 m² +22% | 2014 |
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| 122 - 128, Hill Lane617 m away | 64 m² | 79 m² | +15 m² +23% | 2009 |
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| 148, Shirley Road959 m away | 34 m² | 49 m² | +15 m² +44% | 2009 |
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