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 5JH
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 |
|---|---|---|---|---|
| 338, Hill Lane824 m away | 219 m² | 520 m² | +301 m² +137% | 2024 |
| 9, Raymond Road856 m away | 168 m² | 318 m² | +150 m² +89% | 2022 |
| 73, Shanklin Road558 m away | 103 m² | 208 m² | +105 m² +102% | 2022 |
| 11, Wilton Crescent407 m away | 87 m² | 184 m² | +97 m² +111% | 2021 |
| 55, Shirley Avenue412 m away | 68 m² | 157 m² | +89 m² +131% | 2009 |
| 178, Wilton Road557 m away | 137 m² | 221 m² | +84 m² +61% | 2024 |
| 24, Shirley Avenue668 m away | 158 m² | 231 m² | +73 m² +46% | 2026 |
| 70, Radway Road462 m away | 76 m² | 147 m² | +71 m² +93% | 2024 |
| 83, Shirley Avenue412 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.
| 180 m² |
| 250 m² |
| +70 m² +39% |
| 2022 |
| 41, Pentire Avenue445 m away | 61 m² | 129 m² | +68 m² +111% | 2015 |
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| 6, Kineton Road570 m away | 125 m² | 192 m² | +67 m² +54% | 2017 |
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| 35, Luccombe Road522 m away | 124 m² | 189 m² | +65 m² +52% | 2026 |
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| 59, Raymond Road856 m away | 120 m² | 185 m² | +65 m² +54% | 2013 |
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| 84, Winchester Road763 m away | 99 m² | 162 m² | +63 m² +64% | 2024 |
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| 288, Foundry Lane974 m away | 148 m² | 210 m² | +62 m² +42% | 2014 |
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| 42, Pentire Avenue393 m away | 71 m² | 132 m² | +61 m² +86% | 2014 |
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| The Magnolias, 53, Evelyn Crescent833 m away | 158 m² | 216 m² | +58 m² +37% | 2019 |
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| 18, Emsworth Road872 m away | 109 m² | 166 m² | +57 m² +52% | 2026 |
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| 41, Newlands Avenue934 m away | 134 m² | 190 m² | +56 m² +42% | 2016 |
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| 13, Darlington Gardens247 m away | 86 m² | 141 m² | +55 m² +64% | 2024 |
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| 43, Romsey Road879 m away | 69 m² | 124 m² | +55 m² +80% | 2014 |
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| 167, Wilton Road473 m away | 169 m² | 223 m² | +54 m² +32% | 2022 |
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| 305, Winchester Road742 m away | 84 m² | 138 m² | +54 m² +64% | 2021 |
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| 18, Reynolds Road549 m away | 86 m² | 139 m² | +53 m² +62% | 2025 |
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| 334, Hill Lane824 m away | 173 m² | 226 m² | +53 m² +31% | 2018 |
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| 12, Pentire Way577 m away | 116 m² | 169 m² | +53 m² +46% | 2015 |
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| 30, Emsworth Road872 m away | 59 m² | 111 m² | +52 m² +88% | 2018 |
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| 123, Howards Grove458 m away | 71 m² | 121 m² | +50 m² +70% | 2014 |
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| 32, Lumsden Avenue962 m away | 127 m² | 177 m² | +50 m² +39% | 2014 |
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| 19, Emsworth Road871 m away | 81 m² | 129 m² | +48 m² +59% | 2020 |
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| 328, Hill Lane668 m away | 155 m² | 203 m² | +48 m² +31% | 2015 |
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| Upper Shirley Post Office, 64, Wilton Road118 m away | 75 m² | 122 m² | +47 m² +63% | 2020 |
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| 29, Shanklin Road558 m away | 125 m² | 170 m² | +45 m² +36% | 2022 |
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| 28, Raymond Road845 m away | 130 m² | 175 m² | +45 m² +35% | 2020 |
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| 8, Cranbourne Close331 m away | 55 m² | 100 m² | +45 m² +82% | 2014 |
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| 100, Wilton Road33 m away | 77 m² | 119 m² | +42 m² +55% | 2025 |
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| Flat 9, Seymour House, Seymour Road791 m away | 44 m² | 86 m² | +42 m² +95% | 2017 |
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| 2, Anglesea Road772 m away | 104 m² | 146 m² | +42 m² +40% | 2016 |
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| 89, Charlton Road808 m away | 128 m² | 169 m² | +41 m² +32% | 2020 |
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| 45, Treeside Road738 m away | 70 m² | 111 m² | +41 m² +59% | 2014 |
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| 20, Leicester Road548 m away | 96 m² | 136 m² | +40 m² +42% | 2017 |
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| 4, Reynolds Road549 m away | 99 m² | 139 m² | +40 m² +40% | 2014 |
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| 14, Eastbourne Avenue484 m away | 82 m² | 121 m² | +39 m² +48% | 2026 |
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| 15, Norfolk Road943 m away | 109 m² | 148 m² | +39 m² +36% | 2026 |
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| 28, Dawlish Avenue373 m away | 86 m² | 125 m² | +39 m² +45% | 2025 |
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| 23, Anglesea Road736 m away | 103 m² | 141 m² | +38 m² +37% | 2020 |
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| 155, Hill Lane692 m away | 112 m² | 150 m² | +38 m² +34% | 2016 |
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| 17, Mayflower Road889 m away | 83 m² | 121 m² | +38 m² +46% | 2016 |
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| 65, Wilton Crescent268 m away | 81 m² | 118 m² | +37 m² +46% | 2026 |
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| 65, Anglesea Road625 m away | 89 m² | 125 m² | +36 m² +40% | 2026 |
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| 144, Wilton Road353 m away | 153 m² | 189 m² | +36 m² +24% | 2024 |
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| 170, Winchester Road513 m away | 111 m² | 147 m² | +36 m² +32% | 2013 |
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| 13, Pirrie Close197 m away | 108 m² | 143 m² | +35 m² +32% | 2023 |
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| 20, Gurney Road562 m away | 100 m² | 135 m² | +35 m² +35% | 2020 |
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| 59, Charlton Road999 m away | 89 m² | 124 m² | +35 m² +39% | 2017 |
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| 32, Salem Street354 m away | 81 m² | 116 m² | +35 m² +43% | 2014 |
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| 18, Hunton Close894 m away | 82 m² | 116 m² | +34 m² +41% | 2024 |
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| 238, Hill Lane623 m away | 173 m² | 207 m² | +34 m² +20% | 2016 |
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| 48, Heysham Road996 m away | 119 m² | 153 m² | +34 m² +29% | 2014 |
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| 2, Harland Crescent123 m away | 114 m² | 147 m² | +33 m² +29% | 2025 |
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| 12, Norham Avenue564 m away | 81 m² | 114 m² | +33 m² +41% | 2016 |
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| 13, Twyford Avenue188 m away | 106 m² | 138 m² | +32 m² +30% | 2026 |
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| 17, Norfolk Road943 m away | 121 m² | 153 m² | +32 m² +26% | 2024 |
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| 19 - 21, Shirley High Street772 m away | 35 m² | 67 m² | +32 m² +91% | 2021 |
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| Flat 12, Seymour House, Seymour Road791 m away | 42 m² | 74 m² | +32 m² +76% | 2017 |
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| Flat 10, Seymour House, Seymour Road791 m away | 43 m² | 75 m² | +32 m² +74% | 2017 |
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| 209, Wilton Road763 m away | 111 m² | 143 m² | +32 m² +29% | 2016 |
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| 82, Church Street403 m away | 74 m² | 105 m² | +31 m² +42% | 2022 |
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| 64, Darlington Gardens244 m away | 101 m² | 132 m² | +31 m² +31% | 2017 |
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| 12, Anglesea Road772 m away | 79 m² | 110 m² | +31 m² +39% | 2014 |
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| 4, Pentire Avenue393 m away | 110 m² | 140 m² | +30 m² +27% | 2020 |
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| 21, Wilton Road340 m away | 82 m² | 112 m² | +30 m² +37% | 2016 |
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| 35, Norham Avenue531 m away | 87 m² | 116 m² | +29 m² +33% | 2020 |
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| 1a, Eastbourne Avenue509 m away | 59 m² | 87 m² | +28 m² +47% | 2021 |
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| 17, Raymond Road856 m away | 142 m² | 170 m² | +28 m² +20% | 2018 |
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| Flat 14, Seymour House, Seymour Road791 m away | 42 m² | 70 m² | +28 m² +67% | 2017 |
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| 61, Malmesbury Road971 m away | 93 m² | 121 m² | +28 m² +30% | 2016 |
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| 6, Wilton Crescent379 m away | 87 m² | 114 m² | +27 m² +31% | 2026 |
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| 20, Atherley Court850 m away | 178 m² | 205 m² | +27 m² +15% | 2024 |
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| Flat 11, Seymour House, Seymour Road791 m away | 41 m² | 68 m² | +27 m² +66% | 2017 |
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| 28, Shayer Road314 m away | 78 m² | 105 m² | +27 m² +35% | 2015 |
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| 12, Lumsden Avenue962 m away | 134 m² | 161 m² | +27 m² +20% | 2014 |
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| 39, Eastbourne Avenue509 m away | 109 m² | 135 m² | +26 m² +24% | 2023 |
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| 21, Romsey Road879 m away | 69 m² | 95 m² | +26 m² +38% | 2019 |
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| 12, Twyford Avenue220 m away | 113 m² | 139 m² | +26 m² +23% | 2018 |
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| 101, Upper Shirley Avenue190 m away | 160 m² | 186 m² | +26 m² +16% | 2015 |
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| 15, Shanklin Crescent488 m away | 130 m² | 155 m² | +25 m² +19% | 2020 |
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| 58, St James Close411 m away | 68 m² | 93 m² | +25 m² +37% | 2019 |
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| Flat 16, Seymour House, Seymour Road791 m away | 38 m² | 63 m² | +25 m² +66% | 2017 |
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| 403, Shirley Road859 m away | 34 m² | 59 m² | +25 m² +74% | 2016 |
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| 90, Shirley Avenue417 m away | 114 m² | 139 m² | +25 m² +22% | 2015 |
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| 1, Norham Close542 m away | 63 m² | 88 m² | +25 m² +40% | 2015 |
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| 5, St Edmunds Road957 m away | 99 m² | 124 m² | +25 m² +25% | 2014 |
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| 9, Dale Valley Close633 m away | 56 m² | 80 m² | +24 m² +43% | 2021 |
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| 8, Winchester Road960 m away | 83 m² | 107 m² | +24 m² +29% | 2021 |
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| 40, Raymond Road845 m away | 112 m² | 136 m² | +24 m² +21% | 2016 |
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| 7, Luccombe Road407 m away | 122 m² | 146 m² | +24 m² +20% | 2015 |
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| 3a, Whithedwood Avenue474 m away | 84 m² | 107 m² | +23 m² +27% | 2026 |
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| 63, Wilton Road147 m away | 106 m² | 129 m² | +23 m² +22% | 2016 |
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| 1, Tremona Road902 m away | 77 m² | 100 m² | +23 m² +30% | 2015 |
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| 100, Shirley High Street823 m away | 54 m² | 76 m² | +22 m² +41% | 2025 |
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| 6, Harland Crescent123 m away | 103 m² | 125 m² | +22 m² +21% | 2024 |
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| 1, Vinery Gardens600 m away | 94 m² | 116 m² | +22 m² +23% | 2024 |
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| 13, Hunton Close894 m away | 72 m² | 94 m² | +22 m² +31% | 2024 |
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| 33, Cedar Avenue500 m away | 99 m² | 121 m² | +22 m² +22% | 2023 |
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| Flat 2, 42, Bellemoor Road229 m away | 40 m² | 62 m² | +22 m² +55% | 2022 |
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| Flat 12, Norcroft Court, Winchester Road350 m away | 50 m² | 72 m² | +22 m² +44% | 2022 |
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| 1, Dawlish Avenue449 m away | 75 m² | 97 m² | +22 m² +29% | 2021 |
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| 50, Newlands Avenue756 m away | 130 m² | 152 m² | +22 m² +17% | 2021 |
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| 88c, Upper Shirley Avenue161 m away | 50 m² | 72 m² | +22 m² +44% | 2015 |
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| 2, Vincent Street652 m away | 91 m² | 113 m² | +22 m² +24% | 2014 |
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| 10, Mulberry Walk803 m away | 117 m² | 139 m² | +22 m² +19% | 2014 |
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| 72, Wilton Crescent141 m away | 93 m² | 114 m² | +21 m² +23% | 2026 |
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| 30, Dale Road598 m away | 101 m² | 122 m² | +21 m² +21% | 2024 |
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| 28, Sandown Road828 m away | 85 m² | 106 m² | +21 m² +25% | 2021 |
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| 12, Dale Valley Close633 m away | 58 m² | 79 m² | +21 m² +36% | 2019 |
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| 85, Dale Valley Road927 m away | 92 m² | 113 m² | +21 m² +23% | 2016 |
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| 6, Luccombe Road375 m away | 93 m² | 114 m² | +21 m² +23% | 2014 |
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| 1, Fuchsia Gardens510 m away | 76 m² | 97 m² | +21 m² +28% | 2012 |
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| 18, Cedar Avenue521 m away | 90 m² | 110 m² | +20 m² +22% | 2026 |
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| 20, St James Road595 m away | 132 m² | 152 m² | +20 m² +15% | 2026 |
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| 21, Norham Avenue531 m away | 62 m² | 82 m² | +20 m² +32% | 2025 |
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| 1, Twyford Avenue192 m away | 113 m² | 133 m² | +20 m² +18% | 2019 |
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| 7, Eastbourne Avenue509 m away | 50 m² | 70 m² | +20 m² +40% | 2018 |
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| 2, Darlington Gardens217 m away | 100 m² | 120 m² | +20 m² +20% | 2014 |
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| 10, Reynolds Road549 m away | 84 m² | 103 m² | +19 m² +23% | 2021 |
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| Flat 15, Seymour House, Seymour Road791 m away | 43 m² | 62 m² | +19 m² +44% | 2017 |
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| Flat 13, Seymour House, Seymour Road791 m away | 55 m² | 74 m² | +19 m² +35% | 2017 |
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| 108, Winchester Road763 m away | 118 m² | 137 m² | +19 m² +16% | 2016 |
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| 354, Winchester Road836 m away | 118 m² | 137 m² | +19 m² +16% | 2015 |
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| 315, Winchester Road742 m away | 112 m² | 131 m² | +19 m² +17% | 2014 |
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| Flat 2, Winton Court, 302, Winchester Road664 m away | 60 m² | 78 m² | +18 m² +30% | 2020 |
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| Flat 16, Chester Court, 258, Winchester Road491 m away | 29 m² | 47 m² | +18 m² +62% | 2017 |
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| 11, Hunton Close894 m away | 82 m² | 100 m² | +18 m² +22% | 2011 |
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| 9, Wilton Road340 m away | 88 m² | 105 m² | +17 m² +19% | 2024 |
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| 20, Bladon Road593 m away | 85 m² | 102 m² | +17 m² +20% | 2024 |
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| 93, Norham Avenue647 m away | 70 m² | 87 m² | +17 m² +24% | 2023 |
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| 88, Malmesbury Road921 m away | 90 m² | 107 m² | +17 m² +19% | 2019 |
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| 30, Shayer Road314 m away | 78 m² | 95 m² | +17 m² +22% | 2013 |
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| 5, Medina Road743 m away | 34 m² | 51 m² | +17 m² +50% | 2012 |
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| 344b, Winchester Road836 m away | 95 m² | 111 m² | +16 m² +17% | 2025 |
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| 4, Waterhouse Lane990 m away | 75 m² | 91 m² | +16 m² +21% | 2024 |
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| Flat 4, 3, Briarswood647 m away | 21 m² | 37 m² | +16 m² +76% | 2023 |
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| 57, Malmesbury Road971 m away | 81 m² | 97 m² | +16 m² +20% | 2023 |
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| 24, Treeside Road735 m away | 96 m² | 112 m² | +16 m² +17% | 2020 |
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| 66, Bellemoor Road229 m away | 84 m² | 100 m² | +16 m² +19% | 2016 |
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| 71, Heysham Road961 m away | 88 m² | 104 m² | +16 m² +18% | 2014 |
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| 20, Salem Street354 m away | 75 m² | 91 m² | +16 m² +21% | 2013 |
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| 3, Seymour Close836 m away | 78 m² | 94 m² | +16 m² +21% | 2013 |
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| Flat 48, Withewood Mansions, Shirley Road957 m away | 43 m² | 59 m² | +16 m² +37% | 2012 |
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| 9, Darlington Gardens247 m away | 90 m² | 105 m² | +15 m² +17% | 2025 |
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| 19, Torquay Avenue421 m away | 85 m² | 100 m² | +15 m² +18% | 2024 |
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| 3, Mulberry Walk803 m away | 92 m² | 107 m² | +15 m² +16% | 2022 |
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| 1, Emsworth Road871 m away | 52 m² | 67 m² | +15 m² +29% | 2016 |
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| 346, Winchester Road836 m away | 99 m² | 114 m² | +15 m² +15% | 2014 |
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| 316, Winchester Road836 m away | 85 m² | 100 m² | +15 m² +18% | 2010 |
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