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 EN1 3AH
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 |
|---|---|---|---|---|
| 250, Baker Street957 m away | 93 m² | 222 m² | +129 m² +139% | 2026 |
| 43, Churchbury Lane589 m away | 86 m² | 178 m² | +92 m² +107% | 2025 |
| 3, Carnarvon Avenue300 m away | 72 m² | 160 m² | +88 m² +122% | 2024 |
| 10, Queens Road652 m away | 99 m² | 187 m² | +88 m² +89% | 2023 |
| 23, Oldbury Road827 m away | 83 m² | 168 m² | +85 m² +102% | 2014 |
| 33, Herrongate Close245 m away | 117 m² | 199 m² | +82 m² +70% | 2015 |
| 83, Percival Road959 m away | 78 m² | 157 m² | +79 m² +101% | 2025 |
| 11, Churchbury Lane589 m away | 85 m² | 163 m² | +78 m² +92% | 2021 |
| 101, Apple Grove318 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.
| 92 m² |
| 169 m² |
| +77 m² +84% |
| 2025 |
| 5, Churchbury Lane647 m away | 129 m² | 206 m² | +77 m² +60% | 2022 |
|---|
| 110, Burleigh Road795 m away | 104 m² | 178 m² | +74 m² +71% | 2026 |
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| 30, Vicars Close342 m away | 95 m² | 168 m² | +73 m² +77% | 2025 |
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| 108, Southbury Road513 m away | 95 m² | 163 m² | +68 m² +72% | 2022 |
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| 58, Peartree Road337 m away | 78 m² | 144 m² | +66 m² +85% | 2023 |
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| 39, Bridgenhall Road962 m away | 74 m² | 135 m² | +61 m² +82% | 2026 |
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| 78, Central Avenue917 m away | 104 m² | 165 m² | +61 m² +59% | 2025 |
|---|
| 37, Churchbury Road714 m away | 79 m² | 140 m² | +61 m² +77% | 2021 |
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| 56, Ladysmith Road407 m away | 90 m² | 150 m² | +60 m² +67% | 2025 |
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| 96, Linden Gardens904 m away | 78 m² | 138 m² | +60 m² +77% | 2020 |
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| 327, Carterhatch Lane838 m away | 78 m² | 137 m² | +59 m² +76% | 2025 |
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| 377, Carterhatch Lane939 m away | 76 m² | 135 m² | +59 m² +78% | 2023 |
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| 23, Vicars Close342 m away | 92 m² | 149 m² | +57 m² +62% | 2024 |
|---|
| 35, Halstead Road809 m away | 73 m² | 130 m² | +57 m² +78% | 2021 |
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| 9, The Drive986 m away | 118 m² | 174 m² | +56 m² +47% | 2020 |
|---|
| 35, St Andrews Road814 m away | 105 m² | 160 m² | +55 m² +52% | 2019 |
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| 41, Inverness Avenue882 m away | 108 m² | 162 m² | +54 m² +50% | 2024 |
|---|
| 307, Willow Road623 m away | 108 m² | 160 m² | +52 m² +48% | 2018 |
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| 60, Linden Gardens904 m away | 90 m² | 141 m² | +51 m² +57% | 2016 |
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| 114, Burleigh Road795 m away | 94 m² | 144 m² | +50 m² +53% | 2024 |
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| 159, Tenniswood Road440 m away | 77 m² | 126 m² | +49 m² +64% | 2021 |
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| 60, Apple Grove413 m away | 91 m² | 139 m² | +48 m² +53% | 2025 |
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| 288, Ladysmith Road597 m away | 95 m² | 143 m² | +48 m² +51% | 2025 |
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| 53, Churchbury Lane606 m away | 93 m² | 140 m² | +47 m² +51% | 2018 |
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| 46, Apple Grove413 m away | 85 m² | 131 m² | +46 m² +54% | 2023 |
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| 17, Ladysmith Road278 m away | 108 m² | 154 m² | +46 m² +43% | 2021 |
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| 59, Riversfield Road356 m away | 91 m² | 137 m² | +46 m² +51% | 2013 |
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| 54, Kenilworth Crescent927 m away | 73 m² | 118 m² | +45 m² +62% | 2025 |
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| 112, Clive Road885 m away | 89 m² | 134 m² | +45 m² +51% | 2024 |
|---|
| 151, Fotheringham Road921 m away | 88 m² | 133 m² | +45 m² +51% | 2024 |
|---|
| 219, Willow Road455 m away | 82 m² | 127 m² | +45 m² +55% | 2021 |
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| 38, Southbury Road507 m away | 132 m² | 177 m² | +45 m² +34% | 2019 |
|---|
| 60, Monastery Gardens974 m away | 94 m² | 138 m² | +44 m² +47% | 2020 |
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| 16, Queens Road652 m away | 105 m² | 148 m² | +43 m² +41% | 2025 |
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| 109, Bertram Road985 m away | 79 m² | 122 m² | +43 m² +54% | 2025 |
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| 104, Mahon Close854 m away | 47 m² | 90 m² | +43 m² +91% | 2021 |
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| 39, Willow Road736 m away | 81 m² | 124 m² | +43 m² +53% | 2019 |
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| 15, Gough Road909 m away | 37 m² | 80 m² | +43 m² +116% | 2013 |
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| 88, Connaught Avenue292 m away | 64 m² | 106 m² | +42 m² +66% | 2025 |
|---|
| 2, Bertram Road847 m away | 64 m² | 106 m² | +42 m² +66% | 2020 |
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| 17, Downs Road966 m away | 63 m² | 105 m² | +42 m² +67% | 2020 |
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| 221, Ladysmith Road292 m away | 77 m² | 118 m² | +41 m² +53% | 2025 |
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| 187, Carterhatch Lane706 m away | 98 m² | 139 m² | +41 m² +42% | 2024 |
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| 126, Tenniswood Road650 m away | 70 m² | 111 m² | +41 m² +59% | 2017 |
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| 4, Bertram Road847 m away | 84 m² | 124 m² | +40 m² +48% | 2024 |
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| 153, Fotheringham Road921 m away | 81 m² | 121 m² | +40 m² +49% | 2022 |
|---|
| 124, Burleigh Road795 m away | 78 m² | 118 m² | +40 m² +51% | 2021 |
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| 21, Queens Road654 m away | 110 m² | 150 m² | +40 m² +36% | 2020 |
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| 22, Canonbury Road844 m away | 61 m² | 101 m² | +40 m² +66% | 2020 |
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| 32, Monastery Gardens974 m away | 100 m² | 139 m² | +39 m² +39% | 2019 |
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| 7, Bertram Road805 m away | 79 m² | 118 m² | +39 m² +49% | 2013 |
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| 314, Ladysmith Road597 m away | 79 m² | 117 m² | +38 m² +48% | 2020 |
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| 266, Carterhatch Lane825 m away | 79 m² | 117 m² | +38 m² +48% | 2020 |
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| 22, Chalkwell Park Avenue917 m away | 63 m² | 101 m² | +38 m² +60% | 2016 |
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| 151, Parsonage Lane680 m away | 108 m² | 146 m² | +38 m² +35% | 2014 |
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| 87, Tenniswood Road624 m away | 84 m² | 121 m² | +37 m² +44% | 2021 |
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| 120, Fotheringham Road916 m away | 84 m² | 121 m² | +37 m² +44% | 2021 |
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| 6, Bridgenhall Road950 m away | 73 m² | 110 m² | +37 m² +51% | 2018 |
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| 7, Bishops Close998 m away | 59 m² | 96 m² | +37 m² +63% | 2016 |
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| 92, Connaught Avenue292 m away | 61 m² | 97 m² | +36 m² +59% | 2026 |
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| 6, Seaford Road716 m away | 41 m² | 77 m² | +36 m² +88% | 2024 |
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| 7, Fillebrook Avenue389 m away | 76 m² | 112 m² | +36 m² +47% | 2022 |
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| 892, Great Cambridge Road957 m away | 75 m² | 111 m² | +36 m² +48% | 2019 |
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| 41, Buckingham Close566 m away | 88 m² | 123 m² | +35 m² +40% | 2026 |
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| 32, Vicars Close342 m away | 95 m² | 130 m² | +35 m² +37% | 2025 |
|---|
| 16, Falmer Road781 m away | 84 m² | 119 m² | +35 m² +42% | 2021 |
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| 252, Baker Street957 m away | 58 m² | 93 m² | +35 m² +60% | 2015 |
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| 273, Ladysmith Road565 m away | 85 m² | 119 m² | +34 m² +40% | 2023 |
|---|
| 66, Baynes Close796 m away | 88 m² | 122 m² | +34 m² +39% | 2021 |
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| 201, Southbury Road626 m away | 109 m² | 143 m² | +34 m² +31% | 2011 |
|---|
| 94, Tenniswood Road650 m away | 71 m² | 104 m² | +33 m² +46% | 2026 |
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| 46, Carnarvon Avenue300 m away | 72 m² | 105 m² | +33 m² +46% | 2025 |
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| 30, Bertram Road847 m away | 71 m² | 104 m² | +33 m² +46% | 2022 |
|---|
| 83, Linden Gardens907 m away | 80 m² | 113 m² | +33 m² +41% | 2022 |
|---|
| 25, Seaford Road682 m away | 87 m² | 119 m² | +32 m² +37% | 2025 |
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| 145, Tenniswood Road440 m away | 80 m² | 112 m² | +32 m² +40% | 2022 |
|---|
| 111, Ladysmith Road0 m away | 99 m² | 130 m² | +31 m² +31% | 2025 |
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| 96, Fotheringham Road916 m away | 84 m² | 115 m² | +31 m² +37% | 2024 |
|---|
| 169, Southbury Road565 m away | 74 m² | 105 m² | +31 m² +42% | 2015 |
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| 7a, Graeme Road712 m away | 63 m² | 93 m² | +30 m² +48% | 2026 |
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| 132, Fotheringham Road916 m away | 88 m² | 118 m² | +30 m² +34% | 2026 |
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| 52, Seaford Road682 m away | 94 m² | 124 m² | +30 m² +32% | 2022 |
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| 243, Ladysmith Road292 m away | 109 m² | 139 m² | +30 m² +28% | 2019 |
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| 2, Seaford Road716 m away | 78 m² | 108 m² | +30 m² +38% | 2019 |
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| 157, Parsonage Lane680 m away | 109 m² | 139 m² | +30 m² +28% | 2017 |
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| 8, Apple Grove413 m away | 138 m² | 168 m² | +30 m² +22% | 2011 |
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| 19a, Bridgenhall Road962 m away | 52 m² | 82 m² | +30 m² +58% | 2010 |
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| 205, Churchbury Lane672 m away | 77 m² | 106 m² | +29 m² +38% | 2026 |
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| 79, Linden Gardens907 m away | 78 m² | 107 m² | +29 m² +37% | 2024 |
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| 10, Rochester Close683 m away | 98 m² | 127 m² | +29 m² +30% | 2023 |
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| 35, Bertram Road805 m away | 82 m² | 111 m² | +29 m² +35% | 2023 |
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| 24, Sandringham Close519 m away | 83 m² | 112 m² | +29 m² +35% | 2018 |
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| 151b, Southbury Road565 m away | 43 m² | 71 m² | +28 m² +65% | 2025 |
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| Flat 32, Pinnacle House, 6a, Colman Parade796 m away | 47 m² | 75 m² | +28 m² +60% | 2023 |
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| 897, Great Cambridge Road938 m away | 88 m² | 116 m² | +28 m² +32% | 2023 |
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| 102, Myddelton Avenue970 m away | 119 m² | 147 m² | +28 m² +24% | 2023 |
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| 69, Sketty Road426 m away | 84 m² | 112 m² | +28 m² +33% | 2017 |
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| 4, Fotheringham Road621 m away | 111 m² | 139 m² | +28 m² +25% | 2017 |
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| 76, Carnarvon Avenue185 m away | 76 m² | 103 m² | +27 m² +36% | 2025 |
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| 95, Tenniswood Road624 m away | 77 m² | 104 m² | +27 m² +35% | 2023 |
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| 3, The Drive986 m away | 94 m² | 121 m² | +27 m² +29% | 2016 |
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| 21, Gough Road909 m away | 73 m² | 100 m² | +27 m² +37% | 2014 |
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| 122, Willow Road445 m away | 79 m² | 105 m² | +26 m² +33% | 2024 |
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| 5, Churchbury Road800 m away | 57 m² | 83 m² | +26 m² +46% | 2024 |
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| 5, Kenilworth Crescent936 m away | 73 m² | 99 m² | +26 m² +36% | 2024 |
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| 141, Gordon Road948 m away | 87 m² | 112 m² | +25 m² +29% | 2020 |
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| 81, Apple Grove318 m away | 76 m² | 101 m² | +25 m² +33% | 2017 |
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| 42, Monastery Gardens974 m away | 94 m² | 119 m² | +25 m² +27% | 2010 |
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| 102, Clive Road885 m away | 75 m² | 99 m² | +24 m² +32% | 2023 |
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| 85, Central Avenue917 m away | 76 m² | 100 m² | +24 m² +32% | 2023 |
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| 45, Sandringham Close488 m away | 75 m² | 98 m² | +23 m² +31% | 2025 |
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| 146, Tenniswood Road477 m away | 87 m² | 110 m² | +23 m² +26% | 2024 |
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| 133, Ladysmith Road0 m away | 112 m² | 135 m² | +23 m² +21% | 2023 |
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| 72, Southbury Road507 m away | 127 m² | 150 m² | +23 m² +18% | 2022 |
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| 93, Mahon Close898 m away | 72 m² | 95 m² | +23 m² +32% | 2020 |
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| 26, Bicknoller Road830 m away | 42 m² | 65 m² | +23 m² +55% | 2019 |
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| 104, Southbury Road502 m away | 127 m² | 150 m² | +23 m² +18% | 2018 |
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| 37, Inverness Avenue790 m away | 73 m² | 96 m² | +23 m² +32% | 2012 |
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| 94, Burleigh Road859 m away | 90 m² | 112 m² | +22 m² +24% | 2026 |
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| 4, Burleigh Road944 m away | 85 m² | 107 m² | +22 m² +26% | 2025 |
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| 251, Ladysmith Road292 m away | 113 m² | 135 m² | +22 m² +19% | 2024 |
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| 156, Parsonage Lane935 m away | 81 m² | 103 m² | +22 m² +27% | 2022 |
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| 353, Carterhatch Lane939 m away | 87 m² | 109 m² | +22 m² +25% | 2020 |
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| 52, Halstead Road810 m away | 80 m² | 102 m² | +22 m² +28% | 2019 |
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| 62, Churchbury Road714 m away | 50 m² | 72 m² | +22 m² +44% | 2018 |
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| 12, Cowdrey Close664 m away | 94 m² | 116 m² | +22 m² +23% | 2017 |
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| 47, Apple Grove522 m away | 88 m² | 110 m² | +22 m² +25% | 2015 |
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| 170, Southbury Road629 m away | 111 m² | 133 m² | +22 m² +20% | 2012 |
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| 103a, Baker Street766 m away | 41 m² | 63 m² | +22 m² +54% | 2011 |
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| 22, Bell Road947 m away | 78 m² | 99 m² | +21 m² +27% | 2026 |
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| 64, Connaught Avenue296 m away | 44 m² | 65 m² | +21 m² +48% | 2024 |
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| 45, Riversfield Road356 m away | 93 m² | 114 m² | +21 m² +23% | 2024 |
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| St Andrews Court, 1 - 4, River Front767 m away | 78 m² | 99 m² | +21 m² +27% | 2024 |
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| 21, Monastery Gardens876 m away | 83 m² | 104 m² | +21 m² +25% | 2024 |
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| 36, Beresford Gardens866 m away | 61 m² | 82 m² | +21 m² +34% | 2021 |
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| 109, Mahon Close854 m away | 69 m² | 90 m² | +21 m² +30% | 2019 |
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| 29, Connaught Avenue410 m away | 64 m² | 85 m² | +21 m² +33% | 2018 |
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| 1, Fotheringham Court, Fotheringham Road584 m away | 28 m² | 48 m² | +20 m² +71% | 2023 |
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| 42, Southbury Road507 m away | 108 m² | 128 m² | +20 m² +19% | 2022 |
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| 34, Falmer Road781 m away | 97 m² | 117 m² | +20 m² +21% | 2021 |
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| 82, Central Avenue917 m away | 66 m² | 86 m² | +20 m² +30% | 2013 |
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| 147, Willow Road468 m away | 75 m² | 94 m² | +19 m² +25% | 2023 |
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| 36, Chalkwell Park Avenue917 m away | 64 m² | 83 m² | +19 m² +30% | 2021 |
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| 85, Cecil Avenue793 m away | 116 m² | 135 m² | +19 m² +16% | 2020 |
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| 71, Willow Road623 m away | 84 m² | 103 m² | +19 m² +23% | 2015 |
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| 27, Cobham Close555 m away | 43 m² | 62 m² | +19 m² +44% | 2012 |
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| 98, Churchbury Lane606 m away | 50 m² | 68 m² | +18 m² +36% | 2026 |
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| 38, Burleigh Road944 m away | 77 m² | 95 m² | +18 m² +23% | 2025 |
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| 42, Herrongate Close245 m away | 92 m² | 110 m² | +18 m² +20% | 2023 |
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| 12, Ravens Close514 m away | 64 m² | 82 m² | +18 m² +28% | 2023 |
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| 147, Bertram Road985 m away | 84 m² | 102 m² | +18 m² +21% | 2023 |
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| 62, Kenilworth Crescent927 m away | 80 m² | 98 m² | +18 m² +23% | 2022 |
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| 38, Orton Grove825 m away | 45 m² | 63 m² | +18 m² +40% | 2021 |
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| 75, Tenniswood Road624 m away | 79 m² | 97 m² | +18 m² +23% | 2017 |
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| 31, Orchard Crescent721 m away | 85 m² | 103 m² | +18 m² +21% | 2016 |
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| 32, Buckingham Close597 m away | 93 m² | 110 m² | +17 m² +18% | 2026 |
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| 11, Carisbrook Close544 m away | 74 m² | 91 m² | +17 m² +23% | 2025 |
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| 162, Southbury Road629 m away | 89 m² | 106 m² | +17 m² +19% | 2024 |
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| 24, Baynes Close796 m away | 88 m² | 105 m² | +17 m² +19% | 2023 |
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| 159, Gordon Road948 m away | 83 m² | 100 m² | +17 m² +20% | 2020 |
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| 25, Bicknoller Road852 m away | 56 m² | 73 m² | +17 m² +30% | 2015 |
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| 50, Firtree Walk691 m away | 91 m² | 108 m² | +17 m² +19% | 2014 |
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| 274, Carterhatch Lane825 m away | 95 m² | 112 m² | +17 m² +18% | 2014 |
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| 58, Kenilworth Crescent927 m away | 97 m² | 114 m² | +17 m² +18% | 2014 |
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| 9, Fotheringham Court, Fotheringham Road584 m away | 51 m² | 67 m² | +16 m² +31% | 2026 |
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| 42, Fotheringham Road754 m away | 103 m² | 119 m² | +16 m² +16% | 2026 |
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| Flat 3, 10a, London Road937 m away | 47 m² | 63 m² | +16 m² +34% | 2026 |
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| 1, Bell Road947 m away | 90 m² | 106 m² | +16 m² +18% | 2024 |
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| 202, Ladysmith Road287 m away | 105 m² | 121 m² | +16 m² +15% | 2023 |
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| 45, Sketty Road438 m away | 43 m² | 59 m² | +16 m² +37% | 2022 |
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| 19, Oldbury Road827 m away | 73 m² | 89 m² | +16 m² +22% | 2022 |
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| 13, Burleigh Road944 m away | 75 m² | 91 m² | +16 m² +21% | 2022 |
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| 1, Percival Road787 m away | 63 m² | 79 m² | +16 m² +25% | 2021 |
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| 8, Newby Close230 m away | 74 m² | 90 m² | +16 m² +22% | 2020 |
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| 35, Sketty Road438 m away | 44 m² | 60 m² | +16 m² +36% | 2019 |
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| 91, Cobham Close555 m away | 46 m² | 62 m² | +16 m² +35% | 2019 |
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| 19, Bertram Road805 m away | 67 m² | 83 m² | +16 m² +24% | 2019 |
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| 80, Beresford Gardens749 m away | 65 m² | 81 m² | +16 m² +25% | 2016 |
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| 56, Southbury Road507 m away | 45 m² | 61 m² | +16 m² +36% | 2015 |
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| 250, Carterhatch Lane825 m away | 76 m² | 92 m² | +16 m² +21% | 2013 |
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| 15, Buckingham Close566 m away | 76 m² | 91 m² | +15 m² +20% | 2025 |
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| 7a, Donkey Lane621 m away | 68 m² | 83 m² | +15 m² +22% | 2025 |
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| 223, Baker Street881 m away | 50 m² | 65 m² | +15 m² +30% | 2023 |
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| 64, Sketty Road438 m away | 32 m² | 47 m² | +15 m² +47% | 2021 |
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| 43, Orton Grove825 m away | 49 m² | 64 m² | +15 m² +31% | 2020 |
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| 5, Mill House, 4, Canning Square929 m away | 57 m² | 72 m² | +15 m² +26% | 2019 |
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| 30, Graeme Road690 m away | 87 m² | 102 m² | +15 m² +17% | 2014 |
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| 14a, Fyfield Road728 m away | 50 m² | 65 m² | +15 m² +30% | 2012 |
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