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 PO4 9QZ
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 |
|---|---|---|---|---|
| 72, Lawrence Road868 m away | 94 m² | 211 m² | +117 m² +124% | 2014 |
| 12, St Ronans Road749 m away | 69 m² | 153 m² | +84 m² +122% | 2017 |
| 44a, Craneswater Park504 m away | 157 m² | 239 m² | +82 m² +52% | 2021 |
| 285, Highland Road685 m away | 98 m² | 179 m² | +81 m² +83% | 2015 |
| 70, Lawrence Road868 m away | 149 m² | 226 m² | +77 m² +52% | 2022 |
| 22, Lindley Avenue309 m away | 48 m² | 118 m² | +70 m² +146% | 2013 |
| 2, White Cloud Park452 m away | 70 m² | 138 m² | +68 m² +97% | 2020 |
| 145, Prince Albert Road975 m away | 107 m² | 174 m² | +67 m² +63% | 2026 |
| 172, Francis Avenue875 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.
| 64 m² |
| 130 m² |
| +66 m² +103% |
| 2026 |
| 14, Maxwell Road695 m away | 93 m² | 159 m² | +66 m² +71% | 2016 |
|---|
| 89, Landguard Road812 m away | 76 m² | 140 m² | +64 m² +84% | 2015 |
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| 41, Whitwell Road730 m away | 193 m² | 257 m² | +64 m² +33% | 2013 |
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| 61, Chetwynd Road950 m away | 48 m² | 111 m² | +63 m² +131% | 2013 |
|---|
| 15, Marion Road612 m away | 132 m² | 193 m² | +61 m² +46% | 2015 |
|---|
| 25, Burbidge Grove114 m away | 170 m² | 230 m² | +60 m² +35% | 2026 |
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| 19, St Helens Parade597 m away | 75 m² | 134 m² | +59 m² +79% | 2009 |
|---|
| 40, Darlington Road890 m away | 100 m² | 158 m² | +58 m² +58% | 2021 |
|---|
| 3, Theo Terrace989 m away | 79 m² | 136 m² | +57 m² +72% | 2018 |
|---|
| Flat 4, St Helens Court, St Helens Parade687 m away | 84 m² | 140 m² | +56 m² +67% | 2013 |
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| 37, Henderson Road895 m away | 99 m² | 154 m² | +55 m² +56% | 2024 |
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| 8, Cousins Grove61 m away | 177 m² | 231 m² | +54 m² +31% | 2025 |
|---|
| 198, Fawcett Road988 m away | 111 m² | 163 m² | +52 m² +47% | 2025 |
|---|
| 38, Norman Road888 m away | 81 m² | 133 m² | +52 m² +64% | 2019 |
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| 5, The Lane410 m away | 102 m² | 154 m² | +52 m² +51% | 2015 |
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| 2, St Augustine Road536 m away | 107 m² | 158 m² | +51 m² +48% | 2025 |
|---|
| 11, Cromwell Road642 m away | 70 m² | 121 m² | +51 m² +73% | 2025 |
|---|
| 38, Adair Road472 m away | 39 m² | 90 m² | +51 m² +131% | 2013 |
|---|
| 48, Francis Avenue618 m away | 62 m² | 111 m² | +49 m² +79% | 2026 |
|---|
| 16, White Cloud Park452 m away | 61 m² | 110 m² | +49 m² +80% | 2020 |
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| 59, Harold Road834 m away | 81 m² | 129 m² | +48 m² +59% | 2020 |
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| 22, Jubilee Road846 m away | 86 m² | 134 m² | +48 m² +56% | 2020 |
|---|
| 53, Granada Road703 m away | 55 m² | 103 m² | +48 m² +87% | 2018 |
|---|
| 7, Beatrice Road735 m away | 88 m² | 136 m² | +48 m² +55% | 2018 |
|---|
| 39, Whitwell Road730 m away | 189 m² | 237 m² | +48 m² +25% | 2014 |
|---|
| 14a, Lowcay Road948 m away | 56 m² | 104 m² | +48 m² +86% | 2014 |
|---|
| 118, Prince Albert Road805 m away | 101 m² | 148 m² | +47 m² +47% | 2025 |
|---|
| 12, Napier Road1000 m away | 88 m² | 135 m² | +47 m² +53% | 2023 |
|---|
| 83, Prince Albert Road805 m away | 99 m² | 145 m² | +46 m² +46% | 2024 |
|---|
| 34, Festing Grove86 m away | 185 m² | 231 m² | +46 m² +25% | 2022 |
|---|
| 123, Festing Grove308 m away | 156 m² | 202 m² | +46 m² +29% | 2014 |
|---|
| 122, Winter Road951 m away | 107 m² | 153 m² | +46 m² +43% | 2011 |
|---|
| 99, Mafeking Road810 m away | 89 m² | 134 m² | +45 m² +51% | 2025 |
|---|
| 1, Darlington Road920 m away | 105 m² | 150 m² | +45 m² +43% | 2019 |
|---|
| 1, St Anns Road490 m away | 89 m² | 133 m² | +44 m² +49% | 2024 |
|---|
| 5, Edmund Road781 m away | 116 m² | 160 m² | +44 m² +38% | 2020 |
|---|
| 112, Francis Avenue875 m away | 86 m² | 130 m² | +44 m² +51% | 2020 |
|---|
| 8, Norman Road888 m away | 98 m² | 141 m² | +43 m² +44% | 2023 |
|---|
| 243, Fawcett Road949 m away | 134 m² | 177 m² | +43 m² +32% | 2021 |
|---|
| 13, Marion Road612 m away | 182 m² | 225 m² | +43 m² +24% | 2017 |
|---|
| 36, Henley Road548 m away | 101 m² | 144 m² | +43 m² +43% | 2014 |
|---|
| 3, Allens Road721 m away | 137 m² | 179 m² | +42 m² +31% | 2025 |
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| 27, Gains Road658 m away | 128 m² | 170 m² | +42 m² +33% | 2024 |
|---|
| 82, Brompton Road490 m away | 93 m² | 135 m² | +42 m² +45% | 2022 |
|---|
| 16, Highland Terrace415 m away | 63 m² | 105 m² | +42 m² +67% | 2018 |
|---|
| 13, Wyndcliffe Road663 m away | 110 m² | 151 m² | +41 m² +37% | 2018 |
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| 66, Methuen Road733 m away | 60 m² | 101 m² | +41 m² +68% | 2015 |
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| 4, Darlington Road890 m away | 111 m² | 152 m² | +41 m² +37% | 2011 |
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| 44, Craneswater Avenue485 m away | 164 m² | 204 m² | +40 m² +24% | 2025 |
|---|
| 158, Westfield Road763 m away | 45 m² | 85 m² | +40 m² +89% | 2025 |
|---|
| 113, Bath Road833 m away | 83 m² | 123 m² | +40 m² +48% | 2023 |
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| 87, Eastney Road959 m away | 95 m² | 135 m² | +40 m² +42% | 2023 |
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| 16, Andover Road266 m away | 144 m² | 184 m² | +40 m² +28% | 2020 |
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| 35, Lidiard Gardens871 m away | 40 m² | 80 m² | +40 m² +100% | 2020 |
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| 11, Edmund Road781 m away | 90 m² | 129 m² | +39 m² +43% | 2025 |
|---|
| 72, Pretoria Road755 m away | 77 m² | 116 m² | +39 m² +51% | 2020 |
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| 70, Gains Road663 m away | 99 m² | 138 m² | +39 m² +39% | 2019 |
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| 110, Francis Avenue875 m away | 120 m² | 159 m² | +39 m² +33% | 2017 |
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| 102, Bath Road804 m away | 75 m² | 113 m² | +38 m² +51% | 2025 |
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| 23, Canterbury Road641 m away | 92 m² | 130 m² | +38 m² +41% | 2021 |
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| 52, Hunter Road576 m away | 101 m² | 138 m² | +37 m² +37% | 2024 |
|---|
| 1, Rochester Road730 m away | 87 m² | 124 m² | +37 m² +43% | 2022 |
|---|
| Flat 7, West Court, Highland Road505 m away | 45 m² | 82 m² | +37 m² +82% | 2014 |
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| 71, Devonshire Avenue867 m away | 139 m² | 176 m² | +37 m² +27% | 2014 |
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| 8, Delamere Road845 m away | 100 m² | 136 m² | +36 m² +36% | 2026 |
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| 29, Wimbledon Park Road899 m away | 179 m² | 215 m² | +36 m² +20% | 2025 |
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| 103, Devonshire Avenue890 m away | 111 m² | 147 m² | +36 m² +32% | 2023 |
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| 24, Beatrice Road735 m away | 82 m² | 118 m² | +36 m² +44% | 2022 |
|---|
| 5a, Highland Street470 m away | 63 m² | 99 m² | +36 m² +57% | 2020 |
|---|
| 279, Highland Road685 m away | 35 m² | 71 m² | +36 m² +103% | 2018 |
|---|
| 57, Chetwynd Road950 m away | 80 m² | 116 m² | +36 m² +45% | 2018 |
|---|
| 30, St Augustine Road536 m away | 95 m² | 131 m² | +36 m² +38% | 2016 |
|---|
| 43, Lawrence Road921 m away | 122 m² | 157 m² | +35 m² +29% | 2020 |
|---|
| 1, Napier Road982 m away | 109 m² | 144 m² | +35 m² +32% | 2019 |
|---|
| 34, Nettlecombe Avenue746 m away | 218 m² | 253 m² | +35 m² +16% | 2016 |
|---|
| 25, Darlington Road920 m away | 100 m² | 135 m² | +35 m² +35% | 2013 |
|---|
| 61, Hunter Road576 m away | 85 m² | 119 m² | +34 m² +40% | 2026 |
|---|
| 127, Haslemere Road783 m away | 87 m² | 121 m² | +34 m² +39% | 2026 |
|---|
| 4, St Augustine Road536 m away | 78 m² | 112 m² | +34 m² +44% | 2024 |
|---|
| 8, Kassassin Street595 m away | 59 m² | 93 m² | +34 m² +58% | 2023 |
|---|
| 107, Francis Avenue913 m away | 131 m² | 165 m² | +34 m² +26% | 2022 |
|---|
| 7, Shirley Road881 m away | 165 m² | 199 m² | +34 m² +21% | 2021 |
|---|
| 32, Norman Road888 m away | 85 m² | 119 m² | +34 m² +40% | 2018 |
|---|
| 21, Kimberley Road347 m away | 56 m² | 90 m² | +34 m² +61% | 2014 |
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| Flat 12, West Court, Highland Road505 m away | 48 m² | 82 m² | +34 m² +71% | 2014 |
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| 34, Hellyer Road493 m away | 99 m² | 132 m² | +33 m² +33% | 2026 |
|---|
| 48, Waverley Road788 m away | 211 m² | 244 m² | +33 m² +16% | 2025 |
|---|
| Flat 3, St Helen'S Court, St Helens Parade687 m away | 48 m² | 81 m² | +33 m² +69% | 2023 |
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| 184, Fawcett Road988 m away | 105 m² | 138 m² | +33 m² +31% | 2023 |
|---|
| 56, St Augustine Road536 m away | 92 m² | 125 m² | +33 m² +36% | 2022 |
|---|
| 57, Gains Road658 m away | 114 m² | 147 m² | +33 m² +29% | 2019 |
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| 222, Fawcett Road988 m away | 82 m² | 115 m² | +33 m² +40% | 2017 |
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| 20, Burbidge Grove114 m away | 154 m² | 187 m² | +33 m² +21% | 2015 |
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| 46, Chetwynd Road942 m away | 139 m² | 172 m² | +33 m² +24% | 2015 |
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| Flat 16, West Court, Highland Road505 m away | 49 m² | 82 m² | +33 m² +67% | 2014 |
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| 4, Henderson Road898 m away | 60 m² | 93 m² | +33 m² +55% | 2010 |
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| 64, Gains Road663 m away | 147 m² | 179 m² | +32 m² +22% | 2022 |
|---|
| Flat 2, 74, St Ronans Road491 m away | 67 m² | 99 m² | +32 m² +48% | 2021 |
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| 77, Mafeking Road810 m away | 61 m² | 93 m² | +32 m² +52% | 2020 |
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| 69, Collingwood Road900 m away | 81 m² | 113 m² | +32 m² +40% | 2020 |
|---|
| 119, Francis Avenue913 m away | 117 m² | 149 m² | +32 m² +27% | 2020 |
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| 59, Eastfield Road796 m away | 76 m² | 108 m² | +32 m² +42% | 2016 |
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| Flat 5, West Court, Highland Road505 m away | 48 m² | 80 m² | +32 m² +67% | 2014 |
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| 134, Devonshire Avenue859 m away | 106 m² | 138 m² | +32 m² +30% | 2014 |
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| 94, Cromwell Road642 m away | 60 m² | 91 m² | +31 m² +52% | 2026 |
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| 279, Fawcett Road830 m away | 120 m² | 151 m² | +31 m² +26% | 2023 |
|---|
| 36, Highland Street470 m away | 56 m² | 87 m² | +31 m² +55% | 2014 |
|---|
| 5, Herbert Road708 m away | 36 m² | 67 m² | +31 m² +86% | 2014 |
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| 10, St Ronans Road749 m away | 53 m² | 84 m² | +31 m² +58% | 2012 |
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| 12, Beatrice Road735 m away | 93 m² | 124 m² | +31 m² +33% | 2011 |
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| 64, Heyshott Road902 m away | 107 m² | 137 m² | +30 m² +28% | 2025 |
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| Flat 8, Brandon Court, Lawrence Road867 m away | 58 m² | 88 m² | +30 m² +52% | 2024 |
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| 30, Bembridge Crescent615 m away | 194 m² | 224 m² | +30 m² +15% | 2021 |
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| 21, Beatrice Road735 m away | 91 m² | 121 m² | +30 m² +33% | 2020 |
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| Flat 11, Fenton Court, 4 - 5, Craneswater Park421 m away | 64 m² | 94 m² | +30 m² +47% | 2019 |
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| 23, Francis Avenue635 m away | 76 m² | 106 m² | +30 m² +39% | 2019 |
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| 51, Chetwynd Road950 m away | 86 m² | 116 m² | +30 m² +35% | 2018 |
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| Flat 12a, West Court, Highland Road505 m away | 52 m² | 82 m² | +30 m² +58% | 2014 |
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| 241, Devonshire Avenue986 m away | 50 m² | 80 m² | +30 m² +60% | 2014 |
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| 92, Francis Avenue875 m away | 80 m² | 110 m² | +30 m² +38% | 2013 |
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| 36, Pretoria Road784 m away | 86 m² | 115 m² | +29 m² +34% | 2023 |
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| 25, Festing Road333 m away | 47 m² | 76 m² | +29 m² +62% | 2020 |
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| 14, Beatrice Road735 m away | 83 m² | 112 m² | +29 m² +35% | 2019 |
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| 42, Granada Road784 m away | 62 m² | 91 m² | +29 m² +47% | 2019 |
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| 49, Collingwood Road900 m away | 96 m² | 125 m² | +29 m² +30% | 2019 |
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| 6, Gains Road663 m away | 163 m² | 192 m² | +29 m² +18% | 2015 |
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| 172, Albert Road620 m away | 67 m² | 96 m² | +29 m² +43% | 2013 |
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| 24, Collins Road370 m away | 56 m² | 85 m² | +29 m² +52% | 2009 |
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| 44, Tredegar Road627 m away | 89 m² | 117 m² | +28 m² +31% | 2025 |
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| 54, Harold Road834 m away | 87 m² | 115 m² | +28 m² +32% | 2019 |
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| 252, Fawcett Road858 m away | 89 m² | 117 m² | +28 m² +31% | 2018 |
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| 5, Exeter Road293 m away | 56 m² | 84 m² | +28 m² +50% | 2014 |
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| Flat 19, West Court, Highland Road505 m away | 52 m² | 80 m² | +28 m² +54% | 2014 |
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| 13, Allens Road721 m away | 123 m² | 151 m² | +28 m² +23% | 2013 |
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| 108, Pretoria Road755 m away | 107 m² | 135 m² | +28 m² +26% | 2013 |
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| 8, Chetwynd Road942 m away | 108 m² | 136 m² | +28 m² +26% | 2013 |
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| Flat 2, 6, Waverley Road829 m away | 110 m² | 137 m² | +27 m² +25% | 2026 |
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| 30, Eastney Road823 m away | 71 m² | 98 m² | +27 m² +38% | 2025 |
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| Flat 4, 63, Festing Road273 m away | 41 m² | 68 m² | +27 m² +66% | 2019 |
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| 361, Fawcett Road726 m away | 96 m² | 123 m² | +27 m² +28% | 2019 |
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| 5, Norman Road888 m away | 94 m² | 121 m² | +27 m² +29% | 2018 |
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| 112, Devonshire Avenue838 m away | 111 m² | 138 m² | +27 m² +24% | 2015 |
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| 86, Eastfield Road821 m away | 61 m² | 88 m² | +27 m² +44% | 2013 |
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| 58a, Devonshire Avenue838 m away | 37 m² | 64 m² | +27 m² +73% | 2011 |
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| 112a, Clarendon Road947 m away | 120 m² | 146 m² | +26 m² +22% | 2019 |
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| 56, Londesborough Road964 m away | 41 m² | 67 m² | +26 m² +63% | 2019 |
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| 2, Harold Road788 m away | 88 m² | 114 m² | +26 m² +30% | 2018 |
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| 35, Trevor Road795 m away | 82 m² | 108 m² | +26 m² +32% | 2018 |
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| 66, Winter Road751 m away | 65 m² | 91 m² | +26 m² +40% | 2015 |
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| Flat 10, West Court, Highland Road505 m away | 54 m² | 80 m² | +26 m² +48% | 2014 |
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| 9, Pepys Close691 m away | 65 m² | 91 m² | +26 m² +40% | 2014 |
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| 33, Nettlecombe Avenue746 m away | 156 m² | 182 m² | +26 m² +17% | 2013 |
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| 75, Empshott Road980 m away | 89 m² | 115 m² | +26 m² +29% | 2013 |
|---|
| 58b, Devonshire Avenue838 m away | 39 m² | 64 m² | +25 m² +64% | 2024 |
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| Flat 3, 37, Waverley Road858 m away | 60 m² | 85 m² | +25 m² +42% | 2024 |
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| 3, Marlowe Court, 42, Parkstone Avenue760 m away | 62 m² | 87 m² | +25 m² +40% | 2022 |
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| 139a, Albert Road882 m away | 73 m² | 98 m² | +25 m² +34% | 2022 |
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| 5, Lowcay Road920 m away | 138 m² | 163 m² | +25 m² +18% | 2022 |
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| 4, Empshott Road985 m away | 98 m² | 123 m² | +25 m² +26% | 2020 |
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| 49, Wisborough Road894 m away | 119 m² | 144 m² | +25 m² +21% | 2015 |
|---|
| 19, Leopold Street660 m away | 55 m² | 80 m² | +25 m² +45% | 2014 |
|---|
| 5, Landguard Road812 m away | 79 m² | 104 m² | +25 m² +32% | 2014 |
|---|
| 235, Devonshire Avenue986 m away | 55 m² | 80 m² | +25 m² +45% | 2014 |
|---|
| 181, St Augustine Road809 m away | 92 m² | 116 m² | +24 m² +26% | 2023 |
|---|
| 66, Bath Road635 m away | 113 m² | 137 m² | +24 m² +21% | 2021 |
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| 30b, Oxford Road985 m away | 110 m² | 134 m² | +24 m² +22% | 2021 |
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| 68, Devonshire Avenue838 m away | 136 m² | 160 m² | +24 m² +18% | 2019 |
|---|
| 16, Evans Road929 m away | 76 m² | 100 m² | +24 m² +32% | 2019 |
|---|
| 21, Pretoria Road784 m away | 80 m² | 104 m² | +24 m² +30% | 2014 |
|---|
| 203, Devonshire Avenue986 m away | 112 m² | 136 m² | +24 m² +21% | 2014 |
|---|
| 239, Devonshire Avenue986 m away | 56 m² | 80 m² | +24 m² +43% | 2014 |
|---|
| 50, Brompton Road490 m away | 73 m² | 96 m² | +23 m² +32% | 2026 |
|---|
| 14, Trevor Road795 m away | 62 m² | 85 m² | +23 m² +37% | 2026 |
|---|
| 62b, Waverley Road795 m away | 67 m² | 90 m² | +23 m² +34% | 2026 |
|---|
| 104, Winter Road951 m away | 121 m² | 144 m² | +23 m² +19% | 2026 |
|---|
| 157, Francis Avenue913 m away | 100 m² | 123 m² | +23 m² +23% | 2025 |
|---|
| 29, Lawrence Road921 m away | 136 m² | 159 m² | +23 m² +17% | 2023 |
|---|
| 25, Jubilee Road851 m away | 81 m² | 104 m² | +23 m² +28% | 2014 |
|---|
| 237, Devonshire Avenue986 m away | 57 m² | 80 m² | +23 m² +40% | 2014 |
|---|
| 104, Waverley Road784 m away | 43 m² | 66 m² | +23 m² +53% | 2012 |
|---|
| 1, Salisbury Road240 m away | 96 m² | 119 m² | +23 m² +24% | 2010 |
|---|
| 66, Waverley Road795 m away | 36 m² | 59 m² | +23 m² +64% | 2008 |
|---|
| Flat 5, Helena Lodge, 20, Helena Road190 m away | 21 m² | 43 m² | +22 m² +105% | 2026 |
|---|
| 14, Allens Road721 m away | 123 m² | 145 m² | +22 m² +18% | 2026 |
|---|
| 333, Fawcett Road726 m away | 91 m² | 113 m² | +22 m² +24% | 2024 |
|---|
| 18, Beatrice Road735 m away | 86 m² | 108 m² | +22 m² +26% | 2023 |
|---|
| 21, Heyshott Road902 m away | 116 m² | 138 m² | +22 m² +19% | 2023 |
|---|
| 57, Eastney Road870 m away | 70 m² | 92 m² | +22 m² +31% | 2021 |
|---|
| 1, Edmund Road781 m away | 118 m² | 140 m² | +22 m² +19% | 2018 |
|---|
| 213a, Albert Road620 m away | 61 m² | 83 m² | +22 m² +36% | 2016 |
|---|
| 31, Northcote Road682 m away | 95 m² | 117 m² | +22 m² +23% | 2015 |
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