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 3DN
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 Street745 m away | 93 m² | 222 m² | +129 m² +139% | 2026 |
| 43, Churchbury Lane261 m away | 86 m² | 178 m² | +92 m² +107% | 2025 |
| 3, Carnarvon Avenue442 m away | 72 m² | 160 m² | +88 m² +122% | 2024 |
| 10, Queens Road531 m away | 99 m² | 187 m² | +88 m² +89% | 2023 |
| 33, Herrongate Close275 m away | 117 m² | 199 m² | +82 m² +70% | 2015 |
| 2, Riverside Gardens830 m away | 109 m² | 187 m² | +78 m² +72% | 2022 |
| 11, Churchbury Lane261 m away | 85 m² | 163 m² | +78 m² +92% | 2021 |
| 101, Apple Grove252 m away | 92 m² | 169 m² | +77 m² +84% | 2025 |
| 5, Churchbury Lane352 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.
| 129 m² |
| 206 m² |
| +77 m² +60% |
| 2022 |
| 21, River View961 m away | 60 m² | 135 m² | +75 m² +125% | 2022 |
|---|
| 110, Burleigh Road688 m away | 104 m² | 178 m² | +74 m² +71% | 2026 |
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| 30, Vicars Close0 m away | 95 m² | 168 m² | +73 m² +77% | 2025 |
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| 108, Southbury Road591 m away | 95 m² | 163 m² | +68 m² +72% | 2022 |
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| 58, Peartree Road181 m away | 78 m² | 144 m² | +66 m² +85% | 2023 |
|---|
| 37, Churchbury Road484 m away | 79 m² | 140 m² | +61 m² +77% | 2021 |
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| 56, Ladysmith Road343 m away | 90 m² | 150 m² | +60 m² +67% | 2025 |
|---|
| 327, Carterhatch Lane974 m away | 78 m² | 137 m² | +59 m² +76% | 2025 |
|---|
| 29, Kynaston Road873 m away | 95 m² | 152 m² | +57 m² +60% | 2026 |
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| 23, Vicars Close0 m away | 92 m² | 149 m² | +57 m² +62% | 2024 |
|---|
| 35, Halstead Road759 m away | 73 m² | 130 m² | +57 m² +78% | 2021 |
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| 9, The Drive756 m away | 118 m² | 174 m² | +56 m² +47% | 2020 |
|---|
| 35, St Andrews Road523 m away | 105 m² | 160 m² | +55 m² +52% | 2019 |
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| 41, Inverness Avenue866 m away | 108 m² | 162 m² | +54 m² +50% | 2024 |
|---|
| 307, Willow Road369 m away | 108 m² | 160 m² | +52 m² +48% | 2018 |
|---|
| 40, Gordon Road766 m away | 85 m² | 136 m² | +51 m² +60% | 2024 |
|---|
| 114, Burleigh Road688 m away | 94 m² | 144 m² | +50 m² +53% | 2024 |
|---|
| 14, River View961 m away | 64 m² | 114 m² | +50 m² +78% | 2022 |
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| 14, Kynaston Road895 m away | 98 m² | 147 m² | +49 m² +50% | 2025 |
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| 159, Tenniswood Road540 m away | 77 m² | 126 m² | +49 m² +64% | 2021 |
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| 15, Armfield Road919 m away | 61 m² | 110 m² | +49 m² +80% | 2013 |
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| 60, Apple Grove261 m away | 91 m² | 139 m² | +48 m² +53% | 2025 |
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| 288, Ladysmith Road796 m away | 95 m² | 143 m² | +48 m² +51% | 2025 |
|---|
| 448, Baker Street982 m away | 98 m² | 146 m² | +48 m² +49% | 2023 |
|---|
| 53, Churchbury Lane269 m away | 93 m² | 140 m² | +47 m² +51% | 2018 |
|---|
| 46, Apple Grove261 m away | 85 m² | 131 m² | +46 m² +54% | 2023 |
|---|
| 17, Ladysmith Road338 m away | 108 m² | 154 m² | +46 m² +43% | 2021 |
|---|
| 59, Riversfield Road96 m away | 91 m² | 137 m² | +46 m² +51% | 2013 |
|---|
| 54, Kenilworth Crescent874 m away | 73 m² | 118 m² | +45 m² +62% | 2025 |
|---|
| 151, Fotheringham Road919 m away | 88 m² | 133 m² | +45 m² +51% | 2024 |
|---|
| 219, Willow Road136 m away | 82 m² | 127 m² | +45 m² +55% | 2021 |
|---|
| 38, Southbury Road457 m away | 132 m² | 177 m² | +45 m² +34% | 2019 |
|---|
| 6, Riverside Gardens830 m away | 96 m² | 140 m² | +44 m² +46% | 2025 |
|---|
| 60, Monastery Gardens645 m away | 94 m² | 138 m² | +44 m² +47% | 2020 |
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| 16, Queens Road531 m away | 105 m² | 148 m² | +43 m² +41% | 2025 |
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| 39, Willow Road773 m away | 81 m² | 124 m² | +43 m² +53% | 2019 |
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| 88, Connaught Avenue98 m away | 64 m² | 106 m² | +42 m² +66% | 2025 |
|---|
| 17, Downs Road944 m away | 63 m² | 105 m² | +42 m² +67% | 2020 |
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| 26, Gordon Road850 m away | 74 m² | 115 m² | +41 m² +55% | 2026 |
|---|
| 221, Ladysmith Road537 m away | 77 m² | 118 m² | +41 m² +53% | 2025 |
|---|
| 187, Carterhatch Lane982 m away | 98 m² | 139 m² | +41 m² +42% | 2024 |
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| 126, Tenniswood Road585 m away | 70 m² | 111 m² | +41 m² +59% | 2017 |
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| 153, Fotheringham Road919 m away | 81 m² | 121 m² | +40 m² +49% | 2022 |
|---|
| 124, Burleigh Road688 m away | 78 m² | 118 m² | +40 m² +51% | 2021 |
|---|
| 21, Queens Road581 m away | 110 m² | 150 m² | +40 m² +36% | 2020 |
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| 22, Canonbury Road722 m away | 61 m² | 101 m² | +40 m² +66% | 2020 |
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| 393, Baker Street923 m away | 67 m² | 106 m² | +39 m² +58% | 2023 |
|---|
| 32, Monastery Gardens645 m away | 100 m² | 139 m² | +39 m² +39% | 2019 |
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| 92, Manor Road738 m away | 73 m² | 112 m² | +39 m² +53% | 2016 |
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| 1, Rosemary Avenue943 m away | 80 m² | 119 m² | +39 m² +49% | 2014 |
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| 7, Bertram Road983 m away | 79 m² | 118 m² | +39 m² +49% | 2013 |
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| 314, Ladysmith Road796 m away | 79 m² | 117 m² | +38 m² +48% | 2020 |
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| 266, Carterhatch Lane921 m away | 79 m² | 117 m² | +38 m² +48% | 2020 |
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| 22, Chalkwell Park Avenue747 m away | 63 m² | 101 m² | +38 m² +60% | 2016 |
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| 151, Parsonage Lane338 m away | 108 m² | 146 m² | +38 m² +35% | 2014 |
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| 348a, Baker Street872 m away | 59 m² | 96 m² | +37 m² +63% | 2025 |
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| 87, Tenniswood Road547 m away | 84 m² | 121 m² | +37 m² +44% | 2021 |
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| 120, Fotheringham Road924 m away | 84 m² | 121 m² | +37 m² +44% | 2021 |
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| 92, Connaught Avenue98 m away | 61 m² | 97 m² | +36 m² +59% | 2026 |
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| 39, Halifax Road859 m away | 88 m² | 124 m² | +36 m² +41% | 2026 |
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| 6, Seaford Road624 m away | 41 m² | 77 m² | +36 m² +88% | 2024 |
|---|
| 7, Fillebrook Avenue343 m away | 76 m² | 112 m² | +36 m² +47% | 2022 |
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| 41, Buckingham Close421 m away | 88 m² | 123 m² | +35 m² +40% | 2026 |
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| 32, Vicars Close0 m away | 95 m² | 130 m² | +35 m² +37% | 2025 |
|---|
| 16, Falmer Road762 m away | 84 m² | 119 m² | +35 m² +42% | 2021 |
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| 252, Baker Street745 m away | 58 m² | 93 m² | +35 m² +60% | 2015 |
|---|
| 273, Ladysmith Road780 m away | 85 m² | 119 m² | +34 m² +40% | 2023 |
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| 26, Weardale Gardens811 m away | 94 m² | 128 m² | +34 m² +36% | 2019 |
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| Flat B, 51, Manor Road891 m away | 52 m² | 86 m² | +34 m² +65% | 2018 |
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| 201, Southbury Road779 m away | 109 m² | 143 m² | +34 m² +31% | 2011 |
|---|
| 94, Tenniswood Road585 m away | 71 m² | 104 m² | +33 m² +46% | 2026 |
|---|
| 46, Carnarvon Avenue442 m away | 72 m² | 105 m² | +33 m² +46% | 2025 |
|---|
| 15, Church Street820 m away | 58 m² | 91 m² | +33 m² +57% | 2024 |
|---|
| 41, Lincoln Road980 m away | 93 m² | 126 m² | +33 m² +35% | 2022 |
|---|
| 33, Kynaston Road873 m away | 94 m² | 127 m² | +33 m² +35% | 2021 |
|---|
| 25, Seaford Road643 m away | 87 m² | 119 m² | +32 m² +37% | 2025 |
|---|
| 145, Tenniswood Road540 m away | 80 m² | 112 m² | +32 m² +40% | 2022 |
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| 111, Ladysmith Road342 m away | 99 m² | 130 m² | +31 m² +31% | 2025 |
|---|
| 96, Fotheringham Road924 m away | 84 m² | 115 m² | +31 m² +37% | 2024 |
|---|
| 169, Southbury Road661 m away | 74 m² | 105 m² | +31 m² +42% | 2015 |
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| 7a, Graeme Road402 m away | 63 m² | 93 m² | +30 m² +48% | 2026 |
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| 132, Fotheringham Road924 m away | 88 m² | 118 m² | +30 m² +34% | 2026 |
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| 52, Seaford Road643 m away | 94 m² | 124 m² | +30 m² +32% | 2022 |
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| 243, Ladysmith Road537 m away | 109 m² | 139 m² | +30 m² +28% | 2019 |
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| 2, Seaford Road624 m away | 78 m² | 108 m² | +30 m² +38% | 2019 |
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| 157, Parsonage Lane338 m away | 109 m² | 139 m² | +30 m² +28% | 2017 |
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| 8, Apple Grove261 m away | 138 m² | 168 m² | +30 m² +22% | 2011 |
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| 72, Lea Road993 m away | 57 m² | 87 m² | +30 m² +53% | 2009 |
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| 205, Churchbury Lane508 m away | 77 m² | 106 m² | +29 m² +38% | 2026 |
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| 10, Rochester Close664 m away | 98 m² | 127 m² | +29 m² +30% | 2023 |
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| 35, Bertram Road983 m away | 82 m² | 111 m² | +29 m² +35% | 2023 |
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| 113, Gordon Road766 m away | 84 m² | 113 m² | +29 m² +35% | 2022 |
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| 4, Armfield Road977 m away | 72 m² | 101 m² | +29 m² +40% | 2017 |
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| 151b, Southbury Road661 m away | 43 m² | 71 m² | +28 m² +65% | 2025 |
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| 395, Baker Street923 m away | 77 m² | 105 m² | +28 m² +36% | 2024 |
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| Flat 32, Pinnacle House, 6a, Colman Parade552 m away | 47 m² | 75 m² | +28 m² +60% | 2023 |
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| 47, Lincoln Road980 m away | 79 m² | 107 m² | +28 m² +35% | 2023 |
|---|
| 3, Parsonage Lane986 m away | 73 m² | 101 m² | +28 m² +38% | 2020 |
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| 69, Sketty Road537 m away | 84 m² | 112 m² | +28 m² +33% | 2017 |
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| 4, Fotheringham Road636 m away | 111 m² | 139 m² | +28 m² +25% | 2017 |
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| 76, Carnarvon Avenue310 m away | 76 m² | 103 m² | +27 m² +36% | 2025 |
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| 95, Tenniswood Road547 m away | 77 m² | 104 m² | +27 m² +35% | 2023 |
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| 57, Church Street939 m away | 50 m² | 77 m² | +27 m² +54% | 2023 |
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| 20, Gordon Road978 m away | 66 m² | 93 m² | +27 m² +41% | 2020 |
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| 24, Sandringham Close401 m away | 85 m² | 112 m² | +27 m² +32% | 2018 |
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| 3, The Drive756 m away | 94 m² | 121 m² | +27 m² +29% | 2016 |
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| 34, Heene Road894 m away | 82 m² | 109 m² | +27 m² +33% | 2010 |
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| 122, Willow Road429 m away | 79 m² | 105 m² | +26 m² +33% | 2024 |
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| 5, Churchbury Road549 m away | 57 m² | 83 m² | +26 m² +46% | 2024 |
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| 5, Kenilworth Crescent824 m away | 73 m² | 99 m² | +26 m² +36% | 2024 |
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| 22, Parsonage Gardens885 m away | 111 m² | 136 m² | +25 m² +23% | 2024 |
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| 40, Church Street885 m away | 44 m² | 69 m² | +25 m² +57% | 2023 |
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| 2, Gentlemans Row921 m away | 79 m² | 104 m² | +25 m² +32% | 2022 |
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| 106, Manor Road738 m away | 77 m² | 102 m² | +25 m² +32% | 2021 |
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| 141, Gordon Road655 m away | 87 m² | 112 m² | +25 m² +29% | 2020 |
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| 56, Manor Road888 m away | 80 m² | 105 m² | +25 m² +31% | 2020 |
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| 81, Apple Grove252 m away | 76 m² | 101 m² | +25 m² +33% | 2017 |
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| 93, Manor Road738 m away | 74 m² | 98 m² | +24 m² +32% | 2025 |
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| 45, Sandringham Close390 m away | 75 m² | 98 m² | +23 m² +31% | 2025 |
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| 146, Tenniswood Road580 m away | 87 m² | 110 m² | +23 m² +26% | 2024 |
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| Flat G6, Tower Point, 52, Sydney Road929 m away | 40 m² | 63 m² | +23 m² +57% | 2024 |
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| 133, Ladysmith Road342 m away | 112 m² | 135 m² | +23 m² +21% | 2023 |
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| 71, Chase Side974 m away | 118 m² | 141 m² | +23 m² +19% | 2023 |
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| 21, Chase Side996 m away | 134 m² | 157 m² | +23 m² +17% | 2023 |
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| 72, Southbury Road457 m away | 127 m² | 150 m² | +23 m² +18% | 2022 |
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| 26, Bicknoller Road848 m away | 42 m² | 65 m² | +23 m² +55% | 2019 |
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| 104, Southbury Road537 m away | 127 m² | 150 m² | +23 m² +18% | 2018 |
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| 37, Inverness Avenue744 m away | 73 m² | 96 m² | +23 m² +32% | 2012 |
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| 94, Burleigh Road782 m away | 90 m² | 112 m² | +22 m² +24% | 2026 |
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| 69, Gordon Road883 m away | 81 m² | 103 m² | +22 m² +27% | 2026 |
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| 4, Burleigh Road888 m away | 85 m² | 107 m² | +22 m² +26% | 2025 |
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| St Andrews Court, 1 - 4, River Front502 m away | 52 m² | 74 m² | +22 m² +42% | 2024 |
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| 251, Ladysmith Road537 m away | 113 m² | 135 m² | +22 m² +19% | 2024 |
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| 156, Parsonage Lane599 m away | 81 m² | 103 m² | +22 m² +27% | 2022 |
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| 52, Halstead Road747 m away | 80 m² | 102 m² | +22 m² +28% | 2019 |
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| 62, Churchbury Road484 m away | 50 m² | 72 m² | +22 m² +44% | 2018 |
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| 12, Cowdrey Close395 m away | 94 m² | 116 m² | +22 m² +23% | 2017 |
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| 47, Apple Grove361 m away | 88 m² | 110 m² | +22 m² +25% | 2015 |
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| 170, Southbury Road810 m away | 111 m² | 133 m² | +22 m² +20% | 2012 |
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| 103a, Baker Street436 m away | 41 m² | 63 m² | +22 m² +54% | 2011 |
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| 22, Bell Road688 m away | 78 m² | 99 m² | +21 m² +27% | 2026 |
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| 45, Riversfield Road96 m away | 93 m² | 114 m² | +21 m² +23% | 2024 |
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| 64, Connaught Avenue224 m away | 44 m² | 65 m² | +21 m² +48% | 2024 |
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| 21, Monastery Gardens544 m away | 83 m² | 104 m² | +21 m² +25% | 2024 |
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| 36, Beresford Gardens739 m away | 61 m² | 82 m² | +21 m² +34% | 2021 |
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| 29, Connaught Avenue412 m away | 64 m² | 85 m² | +21 m² +33% | 2018 |
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| 21, Kynaston Road873 m away | 95 m² | 116 m² | +21 m² +22% | 2016 |
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| A home on Baker Street923 m away | 103 m² | 123 m² | +20 m² +19% | 2025 |
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| 1, Fotheringham Court, Fotheringham Road579 m away | 28 m² | 48 m² | +20 m² +71% | 2023 |
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| 42, Southbury Road457 m away | 108 m² | 128 m² | +20 m² +19% | 2022 |
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| 34, Falmer Road762 m away | 97 m² | 117 m² | +20 m² +21% | 2021 |
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| 22, Armfield Road977 m away | 85 m² | 105 m² | +20 m² +24% | 2017 |
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| 23, Gordon Road978 m away | 76 m² | 95 m² | +19 m² +25% | 2025 |
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| 147, Willow Road408 m away | 75 m² | 94 m² | +19 m² +25% | 2023 |
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| 36, Chalkwell Park Avenue747 m away | 64 m² | 83 m² | +19 m² +30% | 2021 |
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| 85, Cecil Avenue845 m away | 116 m² | 135 m² | +19 m² +16% | 2020 |
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| 71, Willow Road628 m away | 84 m² | 103 m² | +19 m² +23% | 2015 |
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| 27, Cobham Close817 m away | 43 m² | 62 m² | +19 m² +44% | 2012 |
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| 98, Churchbury Lane269 m away | 50 m² | 68 m² | +18 m² +36% | 2026 |
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| 83, Halifax Road776 m away | 70 m² | 88 m² | +18 m² +26% | 2025 |
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| 38, Burleigh Road888 m away | 77 m² | 95 m² | +18 m² +23% | 2025 |
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| 12, Ravens Close195 m away | 64 m² | 82 m² | +18 m² +28% | 2023 |
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| 42, Herrongate Close275 m away | 92 m² | 110 m² | +18 m² +20% | 2023 |
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| 62, Kenilworth Crescent874 m away | 80 m² | 98 m² | +18 m² +23% | 2022 |
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| 92a, Lancaster Road976 m away | 104 m² | 122 m² | +18 m² +17% | 2021 |
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| 31, Armfield Road919 m away | 45 m² | 63 m² | +18 m² +40% | 2018 |
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| 75, Tenniswood Road547 m away | 79 m² | 97 m² | +18 m² +23% | 2017 |
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| 31, Orchard Crescent801 m away | 85 m² | 103 m² | +18 m² +21% | 2016 |
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| 32, Buckingham Close437 m away | 93 m² | 110 m² | +17 m² +18% | 2026 |
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| 11, Carisbrook Close629 m away | 74 m² | 91 m² | +17 m² +23% | 2025 |
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| 162, Southbury Road810 m away | 89 m² | 106 m² | +17 m² +19% | 2024 |
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| 24, Parsonage Gardens885 m away | 96 m² | 113 m² | +17 m² +18% | 2024 |
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| 223, Baker Street646 m away | 79 m² | 96 m² | +17 m² +22% | 2023 |
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| 5a, Halifax Road962 m away | 44 m² | 61 m² | +17 m² +39% | 2022 |
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| 159, Gordon Road655 m away | 83 m² | 100 m² | +17 m² +20% | 2020 |
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| 25, Bicknoller Road878 m away | 56 m² | 73 m² | +17 m² +30% | 2015 |
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| 50, Firtree Walk358 m away | 91 m² | 108 m² | +17 m² +19% | 2014 |
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| 58, Kenilworth Crescent874 m away | 97 m² | 114 m² | +17 m² +18% | 2014 |
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| 274, Carterhatch Lane921 m away | 95 m² | 112 m² | +17 m² +18% | 2014 |
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| 9, Fotheringham Court, Fotheringham Road579 m away | 51 m² | 67 m² | +16 m² +31% | 2026 |
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| Flat 3, 10a, London Road673 m away | 47 m² | 63 m² | +16 m² +34% | 2026 |
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| 42, Fotheringham Road770 m away | 103 m² | 119 m² | +16 m² +16% | 2026 |
|---|
| 1, Bell Road688 m away | 90 m² | 106 m² | +16 m² +18% | 2024 |
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| 202, Ladysmith Road511 m away | 105 m² | 121 m² | +16 m² +15% | 2023 |
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| 45, Sketty Road419 m away | 43 m² | 59 m² | +16 m² +37% | 2022 |
|---|
| 13, Burleigh Road888 m away | 75 m² | 91 m² | +16 m² +21% | 2022 |
|---|
| 1, Percival Road942 m away | 63 m² | 79 m² | +16 m² +25% | 2021 |
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| 8, Newby Close181 m away | 74 m² | 90 m² | +16 m² +22% | 2020 |
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| 35, Sketty Road419 m away | 44 m² | 60 m² | +16 m² +36% | 2019 |
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| 91, Cobham Close817 m away | 46 m² | 62 m² | +16 m² +35% | 2019 |
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| 19, Bertram Road983 m away | 67 m² | 83 m² | +16 m² +24% | 2019 |
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