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 SE26 4BY
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 |
|---|---|---|---|---|
| 1, Radlet Avenue148 m away | 123 m² | 242 m² | +119 m² +97% | 2026 |
| 7b, Church Rise728 m away | 143 m² | 256 m² | +113 m² +79% | 2024 |
| 66, Sunderland Road719 m away | 100 m² | 209 m² | +109 m² +109% | 2026 |
| 76, London Road497 m away | 105 m² | 210 m² | +105 m² +100% | 2013 |
| 13e, Westwood Park770 m away | 122 m² | 224 m² | +102 m² +84% | 2014 |
| 5, Hennel Close492 m away | 94 m² | 188 m² | +94 m² +100% | 2026 |
| 45, Westwood Park951 m away | 111 m² | 205 m² | +94 m² +85% | 2016 |
| 99, Dacres Road798 m away | 116 m² | 207 m² | +91 m² +78% | 2014 |
| 32b, Sunderland Road805 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.
| 118 m² |
| 205 m² |
| +87 m² +74% |
| 2015 |
| 17, Gaynesford Road678 m away | 108 m² | 191 m² | +83 m² +77% | 2020 |
|---|
| 41, Carlton Terrace559 m away | 128 m² | 208 m² | +80 m² +63% | 2019 |
|---|
| 26, Panmure Road526 m away | 71 m² | 146 m² | +75 m² +106% | 2017 |
|---|
| Arthive Studios Unit 3, 29, Hindsleys Place533 m away | 59 m² | 134 m² | +75 m² +127% | 2015 |
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| 28, Devonshire Road605 m away | 85 m² | 160 m² | +75 m² +88% | 2015 |
|---|
| 50, Peak Hill700 m away | 69 m² | 139 m² | +70 m² +101% | 2020 |
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| 26, Peak Hill700 m away | 59 m² | 128 m² | +69 m² +117% | 2023 |
|---|
| 15, Westwood Park858 m away | 166 m² | 233 m² | +67 m² +40% | 2017 |
|---|
| 35, Siddons Road902 m away | 127 m² | 193 m² | +66 m² +52% | 2025 |
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| 47, Stanstead Road685 m away | 95 m² | 161 m² | +66 m² +69% | 2020 |
|---|
| 67, Sunderland Road889 m away | 219 m² | 284 m² | +65 m² +30% | 2023 |
|---|
| 13, Peckarmans Wood954 m away | 112 m² | 176 m² | +64 m² +57% | 2019 |
|---|
| Three Leaves, 4a, Crescent Wood Road908 m away | 271 m² | 333 m² | +62 m² +23% | 2025 |
|---|
| 2, Rosamond Street609 m away | 79 m² | 140 m² | +61 m² +77% | 2024 |
|---|
| 127, Sydenham Hill492 m away | 225 m² | 285 m² | +60 m² +27% | 2022 |
|---|
| 21, Aylward Road825 m away | 144 m² | 203 m² | +59 m² +41% | 2026 |
|---|
| 45, Kirkdale341 m away | 90 m² | 147 m² | +57 m² +63% | 2024 |
|---|
| 99, Longton Grove943 m away | 51 m² | 108 m² | +57 m² +112% | 2013 |
|---|
| 1, St Pauls Conversion, Taymount Rise392 m away | 139 m² | 195 m² | +56 m² +40% | 2016 |
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| Flat 2, 14, Waldram Park Road777 m away | 115 m² | 170 m² | +55 m² +48% | 2021 |
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| 5, Aylward Road825 m away | 140 m² | 194 m² | +54 m² +39% | 2025 |
|---|
| 56, Stanstead Road808 m away | 70 m² | 123 m² | +53 m² +76% | 2024 |
|---|
| 7, Whittell Gardens498 m away | 86 m² | 139 m² | +53 m² +62% | 2014 |
|---|
| 40, Whittell Gardens498 m away | 79 m² | 131 m² | +52 m² +66% | 2017 |
|---|
| 4, Church View, Sunderland Road738 m away | 106 m² | 158 m² | +52 m² +49% | 2015 |
|---|
| 42, Thorpewood Avenue238 m away | 84 m² | 135 m² | +51 m² +61% | 2026 |
|---|
| 29, Perry Vale554 m away | 39 m² | 90 m² | +51 m² +131% | 2016 |
|---|
| 23, Aylward Road825 m away | 178 m² | 228 m² | +50 m² +28% | 2026 |
|---|
| 11, Ewelme Road812 m away | 105 m² | 155 m² | +50 m² +48% | 2024 |
|---|
| 32, Trilby Road840 m away | 77 m² | 127 m² | +50 m² +65% | 2023 |
|---|
| 26, Wood Vale895 m away | 98 m² | 147 m² | +49 m² +50% | 2020 |
|---|
| 10, Horniman Drive961 m away | 97 m² | 146 m² | +49 m² +51% | 2020 |
|---|
| 11a, Ewelme Road812 m away | 104 m² | 151 m² | +47 m² +45% | 2026 |
|---|
| 8, Roundhay Close461 m away | 79 m² | 126 m² | +47 m² +59% | 2021 |
|---|
| 20, Whittell Gardens498 m away | 86 m² | 133 m² | +47 m² +55% | 2019 |
|---|
| 25, Collingtree Road738 m away | 84 m² | 130 m² | +46 m² +55% | 2025 |
|---|
| 36a, Panmure Road526 m away | 84 m² | 130 m² | +46 m² +55% | 2023 |
|---|
| 23, Fransfield Grove544 m away | 38 m² | 84 m² | +46 m² +121% | 2010 |
|---|
| 6, Ewelme Road884 m away | 171 m² | 216 m² | +45 m² +26% | 2026 |
|---|
| 21, Cibber Road962 m away | 51 m² | 96 m² | +45 m² +88% | 2016 |
|---|
| 109, Sydenham Park Road586 m away | 85 m² | 129 m² | +44 m² +52% | 2024 |
|---|
| 37, Cheseman Street337 m away | 146 m² | 189 m² | +43 m² +29% | 2020 |
|---|
| 26, Trilby Road840 m away | 76 m² | 119 m² | +43 m² +57% | 2019 |
|---|
| 18, Cleeve Hill710 m away | 34 m² | 77 m² | +43 m² +126% | 2016 |
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| 64, Devonshire Road831 m away | 207 m² | 249 m² | +42 m² +20% | 2022 |
|---|
| 13c, Havelock Walk496 m away | 62 m² | 104 m² | +42 m² +68% | 2020 |
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| 42, Wood Vale895 m away | 124 m² | 166 m² | +42 m² +34% | 2012 |
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| 22, Havelock Walk496 m away | 35 m² | 76 m² | +41 m² +117% | 2023 |
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| 157, Sydenham Park Road586 m away | 110 m² | 151 m² | +41 m² +37% | 2023 |
|---|
| 18, Davids Road571 m away | 49 m² | 90 m² | +41 m² +84% | 2020 |
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| 43, Peckarmans Wood933 m away | 97 m² | 138 m² | +41 m² +42% | 2016 |
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| 14, Peak Hill700 m away | 80 m² | 121 m² | +41 m² +51% | 2015 |
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| 30, Thorpewood Avenue238 m away | 168 m² | 209 m² | +41 m² +24% | 2012 |
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| 50, Rockbourne Road827 m away | 120 m² | 160 m² | +40 m² +33% | 2026 |
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| Flat 26, Valentine Court, Perry Vale559 m away | 44 m² | 84 m² | +40 m² +91% | 2022 |
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| 105, London Road518 m away | 125 m² | 164 m² | +39 m² +31% | 2026 |
|---|
| Flat 3, 32, Sydenham Park491 m away | 63 m² | 102 m² | +39 m² +62% | 2025 |
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| 73, Sunderland Road889 m away | 238 m² | 277 m² | +39 m² +16% | 2021 |
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| 23c, Church Rise728 m away | 112 m² | 151 m² | +39 m² +35% | 2015 |
|---|
| 7, Hassocks Close312 m away | 49 m² | 87 m² | +38 m² +78% | 2025 |
|---|
| 34, Woodcombe Crescent764 m away | 117 m² | 155 m² | +38 m² +32% | 2023 |
|---|
| 12, Trilby Road840 m away | 85 m² | 123 m² | +38 m² +45% | 2023 |
|---|
| 43, Woodcombe Crescent764 m away | 113 m² | 151 m² | +38 m² +34% | 2020 |
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| 50, Stanstead Road808 m away | 79 m² | 117 m² | +38 m² +48% | 2020 |
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| 191e, Perry Vale985 m away | 55 m² | 92 m² | +37 m² +67% | 2026 |
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| 58, Trilby Road840 m away | 96 m² | 133 m² | +37 m² +39% | 2025 |
|---|
| 23, Benson Road921 m away | 129 m² | 166 m² | +37 m² +29% | 2025 |
|---|
| 82, Stanstead Road913 m away | 83 m² | 120 m² | +37 m² +45% | 2023 |
|---|
| Flat A, 35, Waldram Park Road821 m away | 60 m² | 97 m² | +37 m² +62% | 2022 |
|---|
| 78, Como Road996 m away | 85 m² | 122 m² | +37 m² +44% | 2022 |
|---|
| 22, Fransfield Grove544 m away | 43 m² | 80 m² | +37 m² +86% | 2011 |
|---|
| 49, Thorpewood Avenue0 m away | 133 m² | 169 m² | +36 m² +27% | 2023 |
|---|
| 161, Honor Oak Road796 m away | 82 m² | 118 m² | +36 m² +44% | 2023 |
|---|
| 3, The Peak591 m away | 86 m² | 122 m² | +36 m² +42% | 2022 |
|---|
| 28, Stanstead Road808 m away | 106 m² | 142 m² | +36 m² +34% | 2020 |
|---|
| 4, Julian Tayler Path382 m away | 89 m² | 125 m² | +36 m² +40% | 2019 |
|---|
| 18, Rosamond Street609 m away | 81 m² | 117 m² | +36 m² +44% | 2018 |
|---|
| 29, Sunderland Road889 m away | 47 m² | 83 m² | +36 m² +77% | 2016 |
|---|
| Flat 8, Hosford House, 48, Devonshire Road692 m away | 61 m² | 97 m² | +36 m² +59% | 2012 |
|---|
| 12, Mount Ash Road448 m away | 79 m² | 115 m² | +36 m² +46% | 2010 |
|---|
| Flat 5, 8, Wells Park Road599 m away | 26 m² | 61 m² | +35 m² +135% | 2026 |
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| 65, Westwood Park951 m away | 105 m² | 140 m² | +35 m² +33% | 2025 |
|---|
| 2, The Fieldings750 m away | 76 m² | 111 m² | +35 m² +46% | 2024 |
|---|
| 5a, Bishopsthorpe Road957 m away | 110 m² | 145 m² | +35 m² +32% | 2023 |
|---|
| 64, Siddons Road949 m away | 116 m² | 151 m² | +35 m² +30% | 2015 |
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| 55, Longton Grove943 m away | 109 m² | 144 m² | +35 m² +32% | 2013 |
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| 33, Benson Road921 m away | 29 m² | 64 m² | +35 m² +121% | 2012 |
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| 75, Longfield Crescent313 m away | 73 m² | 108 m² | +35 m² +48% | 2011 |
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| 9, Derby Hill Crescent88 m away | 106 m² | 140 m² | +34 m² +32% | 2025 |
|---|
| 57c, Peak Hill750 m away | 73 m² | 107 m² | +34 m² +47% | 2025 |
|---|
| Flat 4, 34a, Sydenham Hill573 m away | 113 m² | 147 m² | +34 m² +30% | 2022 |
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| 94, Kemble Road967 m away | 70 m² | 104 m² | +34 m² +49% | 2020 |
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| 53b, Dartmouth Road318 m away | 86 m² | 120 m² | +34 m² +40% | 2019 |
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| 98, Kemble Road967 m away | 69 m² | 103 m² | +34 m² +49% | 2019 |
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| 28, Beaulieu Avenue857 m away | 141 m² | 175 m² | +34 m² +24% | 2014 |
|---|
| 45, Mayow Road953 m away | 105 m² | 139 m² | +34 m² +32% | 2013 |
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| 24, Derby Hill Crescent88 m away | 102 m² | 135 m² | +33 m² +32% | 2023 |
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| 100, Sydenham Park Road623 m away | 95 m² | 128 m² | +33 m² +35% | 2022 |
|---|
| 35, Acorn Way799 m away | 74 m² | 107 m² | +33 m² +45% | 2021 |
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| Flat 13, Fitzwilliam Heights, 21, Taymount Rise295 m away | 84 m² | 117 m² | +33 m² +39% | 2014 |
|---|
| 8, The Peak591 m away | 102 m² | 134 m² | +32 m² +31% | 2026 |
|---|
| 5, Sandown Court381 m away | 58 m² | 90 m² | +32 m² +55% | 2019 |
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| 53, Chelsfield Gardens492 m away | 80 m² | 112 m² | +32 m² +40% | 2014 |
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| 20, Trilby Road840 m away | 81 m² | 113 m² | +32 m² +40% | 2014 |
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| 36, Kirkdale390 m away | 177 m² | 209 m² | +32 m² +18% | 2009 |
|---|
| 32, Hyndewood589 m away | 103 m² | 134 m² | +31 m² +30% | 2024 |
|---|
| 13a, Cheseman Street337 m away | 49 m² | 80 m² | +31 m² +63% | 2021 |
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| 42, Trilby Road840 m away | 66 m² | 97 m² | +31 m² +47% | 2021 |
|---|
| Flat 14, Fitzwilliam Heights, 21, Taymount Rise295 m away | 86 m² | 116 m² | +30 m² +35% | 2025 |
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| Flat 15, Drakes Court, Devonshire Road907 m away | 45 m² | 75 m² | +30 m² +67% | 2024 |
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| 36, Vestris Road895 m away | 69 m² | 99 m² | +30 m² +43% | 2023 |
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| 53, Siddons Road902 m away | 112 m² | 142 m² | +30 m² +27% | 2023 |
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| 59, Peak Hill750 m away | 161 m² | 191 m² | +30 m² +19% | 2014 |
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| Flat 4, 111, Dartmouth Road184 m away | 42 m² | 72 m² | +30 m² +71% | 2013 |
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| 23b, Church Rise728 m away | 123 m² | 152 m² | +29 m² +24% | 2022 |
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| 4, Waldram Park Road777 m away | 43 m² | 72 m² | +29 m² +67% | 2022 |
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| 111, Longton Grove943 m away | 93 m² | 122 m² | +29 m² +31% | 2022 |
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| 45, Thorpewood Avenue0 m away | 110 m² | 139 m² | +29 m² +26% | 2019 |
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| Flat 4, 40 - 42, Ewelme Road884 m away | 36 m² | 65 m² | +29 m² +81% | 2016 |
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| Flat 9, Wenlock House, 41, Stanstead Road685 m away | 55 m² | 83 m² | +28 m² +51% | 2024 |
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| 6, Rojack Road816 m away | 84 m² | 112 m² | +28 m² +33% | 2024 |
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| 43, Panmure Road563 m away | 133 m² | 161 m² | +28 m² +21% | 2022 |
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| 96, Stanstead Road913 m away | 49 m² | 77 m² | +28 m² +57% | 2017 |
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| 5, Rockbourne Road798 m away | 117 m² | 145 m² | +28 m² +24% | 2016 |
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| Flat 2, 81, Devonshire Road820 m away | 41 m² | 69 m² | +28 m² +68% | 2016 |
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| 6, St Pauls Conversion, Taymount Rise392 m away | 81 m² | 109 m² | +28 m² +35% | 2012 |
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| 32, Derby Hill181 m away | 103 m² | 130 m² | +27 m² +26% | 2025 |
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| 23, Shipman Road963 m away | 103 m² | 130 m² | +27 m² +26% | 2025 |
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| 5, The Fieldings750 m away | 80 m² | 107 m² | +27 m² +34% | 2019 |
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| 36, Rockbourne Road827 m away | 121 m² | 148 m² | +27 m² +22% | 2017 |
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| 88, Kemble Road967 m away | 76 m² | 103 m² | +27 m² +36% | 2011 |
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| 8, Mayow Road843 m away | 69 m² | 95 m² | +26 m² +38% | 2021 |
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| 10, Whittell Gardens498 m away | 90 m² | 116 m² | +26 m² +29% | 2016 |
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| 131, Honor Oak Road947 m away | 81 m² | 107 m² | +26 m² +32% | 2013 |
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| 159, Honor Oak Road796 m away | 92 m² | 117 m² | +25 m² +27% | 2026 |
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| 48, Derby Hill181 m away | 94 m² | 119 m² | +25 m² +27% | 2025 |
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| Flat 1, 39, Sunderland Road889 m away | 49 m² | 74 m² | +25 m² +51% | 2025 |
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| 61, Trilby Road866 m away | 66 m² | 91 m² | +25 m² +38% | 2021 |
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| 18, Taylors Lane986 m away | 81 m² | 106 m² | +25 m² +31% | 2021 |
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| 32, Dacres Road390 m away | 55 m² | 80 m² | +25 m² +45% | 2020 |
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| 40a, Honor Oak Road805 m away | 80 m² | 105 m² | +25 m² +31% | 2020 |
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| 19, Rojack Road816 m away | 114 m² | 139 m² | +25 m² +22% | 2020 |
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| 11, Charlecote Grove316 m away | 85 m² | 110 m² | +25 m² +29% | 2019 |
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| 2, Fransfield Grove544 m away | 130 m² | 155 m² | +25 m² +19% | 2018 |
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| 13, Whittell Gardens498 m away | 79 m² | 104 m² | +25 m² +32% | 2017 |
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| 3, Dacres Road425 m away | 95 m² | 120 m² | +25 m² +26% | 2015 |
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| 57, Crescent Wood Road902 m away | 102 m² | 127 m² | +25 m² +25% | 2011 |
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| 39c, Dartmouth Road318 m away | 35 m² | 60 m² | +25 m² +71% | 2009 |
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| 167, Dartmouth Road269 m away | 74 m² | 98 m² | +24 m² +32% | 2026 |
|---|
| 1, Vestris Road929 m away | 75 m² | 99 m² | +24 m² +32% | 2026 |
|---|
| Flat C, 41, Mayow Road953 m away | 33 m² | 57 m² | +24 m² +73% | 2024 |
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| 13, Taymount Rise295 m away | 50 m² | 74 m² | +24 m² +48% | 2019 |
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| Flat 6, 26, Inglemere Road573 m away | 48 m² | 72 m² | +24 m² +50% | 2019 |
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| 29a, Dartmouth Road318 m away | 46 m² | 70 m² | +24 m² +52% | 2014 |
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| Flat 3, 5, Recreation Road832 m away | 57 m² | 81 m² | +24 m² +42% | 2014 |
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| 16, Century Yard325 m away | 56 m² | 80 m² | +24 m² +43% | 2011 |
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| 39, Devonshire Road570 m away | 53 m² | 77 m² | +24 m² +45% | 2010 |
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| 9a, Hyndewood645 m away | 83 m² | 107 m² | +24 m² +29% | 2010 |
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| Flat 8, The Arc, 85, Willow Way528 m away | 65 m² | 88 m² | +23 m² +35% | 2025 |
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| 33, Mount Ash Road453 m away | 124 m² | 147 m² | +23 m² +19% | 2023 |
|---|
| 1, Mylis Close765 m away | 79 m² | 102 m² | +23 m² +29% | 2023 |
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| 19, Cibber Road962 m away | 75 m² | 98 m² | +23 m² +31% | 2021 |
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| 29, Crescent Wood Road902 m away | 129 m² | 152 m² | +23 m² +18% | 2020 |
|---|
| 96, Kemble Road967 m away | 72 m² | 95 m² | +23 m² +32% | 2018 |
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| 12, Charlecote Grove316 m away | 101 m² | 124 m² | +23 m² +23% | 2013 |
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| 3, Sandown Court381 m away | 59 m² | 81 m² | +22 m² +37% | 2025 |
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| 33, Wood Vale878 m away | 48 m² | 70 m² | +22 m² +46% | 2023 |
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| 31, Grassmount350 m away | 85 m² | 107 m² | +22 m² +26% | 2021 |
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| Flat C, 561, Lordship Lane884 m away | 70 m² | 92 m² | +22 m² +31% | 2021 |
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| Flat 17, Drakes Court, Devonshire Road907 m away | 55 m² | 77 m² | +22 m² +40% | 2020 |
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| 20a, Benson Road962 m away | 80 m² | 102 m² | +22 m² +28% | 2020 |
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| 41, Church Rise609 m away | 81 m² | 103 m² | +22 m² +27% | 2014 |
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| 73c, Dartmouth Road210 m away | 43 m² | 65 m² | +22 m² +51% | 2013 |
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| Flat 15, Horniman Grange, 66, London Road468 m away | 31 m² | 53 m² | +22 m² +71% | 2013 |
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| 14, Beaulieu Avenue857 m away | 114 m² | 136 m² | +22 m² +19% | 2013 |
|---|
| 5, Tarleton Gardens491 m away | 104 m² | 125 m² | +21 m² +20% | 2025 |
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| 47, London Road407 m away | 39 m² | 60 m² | +21 m² +54% | 2024 |
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| 22, Otto Close409 m away | 62 m² | 83 m² | +21 m² +34% | 2024 |
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| 15, Bradford Close800 m away | 59 m² | 80 m² | +21 m² +36% | 2015 |
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| Flat 2, 6, Church Rise728 m away | 35 m² | 56 m² | +21 m² +60% | 2013 |
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| 117, London Road518 m away | 125 m² | 145 m² | +20 m² +16% | 2026 |
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| 17, Wells Park Road715 m away | 77 m² | 97 m² | +20 m² +26% | 2026 |
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| 4, Queens Garth, Taymount Rise407 m away | 68 m² | 88 m² | +20 m² +29% | 2024 |
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| 21, Manor Mount651 m away | 72 m² | 92 m² | +20 m² +28% | 2024 |
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| 98, Dartmouth Road111 m away | 133 m² | 153 m² | +20 m² +15% | 2023 |
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| Flat 2, Hosford House, 48, Devonshire Road692 m away | 74 m² | 94 m² | +20 m² +27% | 2023 |
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| Flat 7, 1, Recreation Road832 m away | 88 m² | 108 m² | +20 m² +23% | 2021 |
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| 7, Shipman Road963 m away | 63 m² | 83 m² | +20 m² +32% | 2020 |
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| 23, Perry Vale554 m away | 39 m² | 59 m² | +20 m² +51% | 2015 |
|---|
| 21, City Walk Apartments, 31, Perry Vale505 m away | 46 m² | 66 m² | +20 m² +43% | 2010 |
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| 20, Rojack Road816 m away | 110 m² | 129 m² | +19 m² +17% | 2025 |
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